Chemical names · alphabetical database

Chemicals Starting with I

Find chemicals whose preferred name or source synonym starts with I. Browse the full list, check CAS numbers and formulas, or search within all 5,264 matching records.

Browse the database ↓ · Coverage and naming rules

5,264Matching chemical records

1,795With CAS cross-references

2,194ChEBI team annotated

Examples of chemicals starting with I

I73-32-5 · C6H13NO2

I27553-56-2 · I2

Ins87-89-8 · C6H12O6

IPA67-63-0 · C3H8O

Iron7439-89-6 · Fe

ICDMT4342-03-4 · C6H10N6O

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5,264 records · showing 1–100

Chemicals starting with I, page 1
Chemical & matching names	CAS number	Formula & mass	Annotation
ISource synonym · CHEBI:17191 Names & database links Source preferred name: L-isoleucine Matching names: I; Ile; ISOLEUCINE ChEBI record · PubChem search · CAS lookup	73-32-5	C6H13NO2131.175 g/mol	3-starChEBI team
ISource synonym · CHEBI:30009 Names & database links Source preferred name: L-isoleucine residue Matching names: -Ile-; I; Ile ChEBI record	Not supplied	C6H11NO113.16 g/mol	3-starChEBI team
9iPreferred name · CHEBI:194232 Names & database links Source preferred name: 9i Matching names: 9i ChEBI record	Not supplied	C25H28N6OS2492.674 g/mol	2-starThird-party annotation
1'-(6\"-0-(I I \" '-methyllauryl) -P-glucopyranosyloxy]-3,4,3',4'-tetradehydro-1,2,1',2'-tetrahydro-I -hydroxy-yl, yl-carotenePreferred name · CHEBI:200865 Names & database links Source preferred name: 1'-(6\"-0-(I I \" '-methyllauryl) -P-glucopyranosyloxy]-3,4,3',4'-tetradehydro-1,2,1',2'-tetrahydro-I -hydroxy-yl, yl-carotene Matching names: 1'-(6\"-0-(I I \" '-methyllauryl) -P-glucopyranosyloxy]-3,4,3',4'-tetradehydro-1,2,1',2'-tetrahydro-I -hydroxy-yl, yl-carotene ChEBI record	Not supplied	C59H90O8927.361 g/mol	2-starThird-party annotation
I pentasaccharideSource synonym · CHEBI:62950 Names & database links Source preferred name: beta-D-Galp-(1->4)-beta-D-GlcpNAc-(1->3)-[beta-D-Galp-(1->4)-beta-D-GlcpNAc-(1->6)]-beta-D-Galp Matching names: I pentasaccharide ChEBI record	Not supplied	C34H58N2O26910.826 g/mol	3-starChEBI team
I trisaccharideSource synonym · CHEBI:62184 Names & database links Source preferred name: beta-D-Galp-(1->4)-beta-D-GlcpNAc-(1->6)-beta-D-Galp Matching names: I trisaccharide ChEBI record	Not supplied	C20H35NO16545.491 g/mol	3-starChEBI team
I' -(6\"-0-myristyl-p-glucopyanosyloxy) -3,4,3', 4' -tetradehydro1,2,1',2'-tetrahydro-l-hydroxy-yl,yl-carotenePreferred name · CHEBI:200828 Names & database links Source preferred name: I' -(6\"-0-myristyl-p-glucopyanosyloxy) -3,4,3', 4' -tetradehydro1,2,1',2'-tetrahydro-l-hydroxy-yl,yl-carotene Matching names: I' -(6\"-0-myristyl-p-glucopyanosyloxy) -3,4,3', 4' -tetradehydro1,2,1',2'-tetrahydro-l-hydroxy-yl,yl-carotene ChEBI record	Not supplied	C60H92O8941.388 g/mol	2-starThird-party annotation
I(2,4)P2Source synonym · CHEBI:133416 Names & database links Source preferred name: 1D-myo-inositol 2,4-bisphosphate Matching names: I(2,4)P2; Ins(2,4)P2 ChEBI record · PubChem search · CAS lookup	27216-57-5	C6H14O12P2340.114 g/mol	3-starChEBI team
I(3)-TocotrienolPreferred name · CHEBI:143048 Names & database links Source preferred name: I(3)-Tocotrienol Matching names: I(3)-Tocotrienol ChEBI record	Not supplied	C28H42O2410.642 g/mol	2-starThird-party annotation
I(3,4,6)P3Source synonym · CHEBI:62918 Names & database links Source preferred name: 1D-myo-inositol 3,4,6-trisphosphate Matching names: I(3,4,6)P3 ChEBI record	Not supplied	C6H15O15P3420.093 g/mol	3-starChEBI team
i(6)ASource synonym · CHEBI:62884 Names & database links Source preferred name: N(6)-(Delta(2)-isopentenyl)adenosine residue Matching names: i(6)A ChEBI record	Not supplied	C15H19N5O3317.349 g/mol	3-starChEBI team
(123i)mip 1095Source synonym · CHEBI:748971 Names & database links Source preferred name: mip-1095 i-123 Matching names: (123i)mip 1095; (123i)mip-1095; 123-i-mip-1095 ChEBI record	Not supplied	C19H25N4O8560.335 g/mol	2-starThird-party annotation
I-123 BMIPPPreferred name · CHEBI:31683 Names & database links Source preferred name: I-123 BMIPP Matching names: I-123 BMIPP; 123I-15-(p-iodophenyl)-3-R,S-methylpentadecanoic acid; I-123-beta-methyl-p-iodophenyl-methylpentadecanoic acid ChEBI record · PubChem search · CAS lookup	123748-56-1	C22H35O2454.426 g/mol	2-starThird-party annotation
I-active gangliosideSource synonym · CHEBI:62491 Names & database links Source preferred name: alpha-Neu5Ac-(2->3)-beta-D-Gal-(1->4)-beta-D-GlcNAc-(1->3)-[alpha-D-Gal-(1->3)-beta-D-Gal-(1->4)-beta-D-GlcNAc-(1->6)]-beta-D-Gal-(1->4)-beta-D-GlcNAc-(1->3)-beta-D-Gal-(1->4)-beta-D-Glc-(1<->1')-Cer Matching names: I-active ganglioside ChEBI record	Not supplied	C90H152N5O56R2200.17 g/mol	3-starChEBI team
i-active ganglioside-GcSource synonym · CHEBI:62832 Names & database links Source preferred name: alpha-Neup5Gc-(2->3)-beta-D-Galp-(1->4)-beta-D-GlcpNAc-(1->3)-beta-D-Galp-(1->4)-beta-D-GlcpNAc-(1->3)-beta-D-Galp-(1->4)-beta-D-Glcp-(1<->1')-Cer Matching names: i-active ganglioside-Gc ChEBI record	Not supplied	C70H119N4O42R1688.696 g/mol	3-starChEBI team
123i-altropaneSource synonym · CHEBI:756896 Names & database links Source preferred name: altropane i-123 Matching names: (123i)altropane; 123i-altropane; Iacft 123i-labeled form ChEBI record	Not supplied	C18H21FNO2425.275 g/mol	2-starThird-party annotation
i-AntigenSource synonym · CHEBI:26174 Names & database links Source preferred name: poly(N-acetyllactosamine) Matching names: i-Antigen ChEBI record	Not supplied	(C14H23NO11)n381.334 g/mol	3-starChEBI team
i-antigenSource synonym · CHEBI:61610 Names & database links Source preferred name: beta-D-Gal-(1->4)-beta-D-GlcNAc-(1->3)-beta-D-Gal-(1->4)-beta-D-GlcNAc-(1->3)-beta-D-Gal-(1->4)-beta-D-Glc-(1<->1')-Cer Matching names: i-antigen ChEBI record	Not supplied	C59H102N3O33R1381.444 g/mol	3-starChEBI team
I-antigenSource synonym · CHEBI:62266 Names & database links Source preferred name: beta-D-Gal-(1->4)-beta-D-GlcNAc-(1->3)-[beta-D-Gal-(1->4)-beta-D-GlcNAc-(1->6)]-beta-D-Gal-(1->4)-beta-D-GlcNAc-(1->3)-beta-D-Gal-(1->4)-beta-D-Glc-(1<->1')-Cer Matching names: I-antigen; iso-nLc8Cer ChEBI record	Not supplied	C73H125N4O43R1746.775 g/mol	3-starChEBI team
I-BCPPreferred name · CHEBI:189106 Names & database links Source preferred name: I-BCP Matching names: I-BCP ChEBI record · PubChem search · CAS lookup	109-70-6	C3H6BrCl157.438 g/mol	2-starThird-party annotation
I-BET151Preferred name · CHEBI:95083 Names & database links Source preferred name: I-BET151 Matching names: I-BET151; I-BET 151 ChEBI record · PubChem search · CAS lookup	1300031-49-5	C23H21N5O3415.453 g/mol	3-starChEBI team
I-BET762Source synonym · CHEBI:95082 Names & database links Source preferred name: molibresib Matching names: I-BET 762; I-BET-762; I-BET762 ChEBI record · PubChem search · CAS lookup	1260907-17-2	C22H22ClN5O2423.904 g/mol	3-starChEBI team
I-BimetrolPreferred name · CHEBI:230375 Names & database links Source preferred name: I-Bimetrol Matching names: I-Bimetrol ChEBI record	Not supplied	C28H47IO526.587 g/mol	2-starThird-party annotation
I-BRD9Preferred name · CHEBI:747477 Names & database links Source preferred name: I-BRD9 Matching names: I-BRD9 ChEBI record · PubChem search · CAS lookup	1714146-59-4	C22H22F3N3O3S2497.564 g/mol	2-starThird-party annotation
i-C3H7NO2Source synonym · CHEBI:16037 Names & database links Source preferred name: 2-nitropropane Matching names: i-C3H7NO2; isonitropropane ChEBI record · PubChem search · CAS lookup	79-46-9	C3H7NO289.094 g/mol	3-starChEBI team
i-C3H7OCH3Source synonym · CHEBI:53505 Names & database links Source preferred name: 2-methoxypropane Matching names: i-C3H7OCH3; Isopropyl methyl ether ChEBI record · PubChem search · CAS lookup	598-53-8	C4H10O74.123 g/mol	3-starChEBI team
124I-CLR1404Source synonym · CHEBI:756881 Names & database links Source preferred name: nm-404 i-124 Matching names: (124I)-CLR1404; 124I-CLR1404; I-124-CLR1404; Iopofosine i-124 ChEBI record	Not supplied	C29H53NO4P634.626 g/mol	2-starThird-party annotation
I-DeepSource synonym · CHEBI:177883 Names & database links Source preferred name: 1-(2-(diphenylmethoxy)ethyl)-4-(2-(4-azido-3-iodophenyl)ethyl)piperazine Matching names: I-Deep ChEBI record · PubChem search · CAS lookup	123632-48-4	C27H30IN5O567.475 g/mol	3-starChEBI team
I-EBU-dmSource synonym · CHEBI:42702 Names & database links Source preferred name: 6-(3,5-dimethylbenzyl)-1-(ethoxymethyl)-5-isopropyluracil Matching names: I-EBU-dm ChEBI record	Not supplied	C19H26N2O3330.428 g/mol	3-starChEBI team
i-ForssmanSource synonym · CHEBI:140821 Names & database links Source preferred name: alpha-D-GalNAc-(1->3)-beta-D-GalNAc-(1->3)-alpha-D-Gal-(1->3)-beta-D-Gal-(1->4)-beta-D-Glc-(1<->1')-Cer Matching names: i-Forssman; iso-Forssman; isogloboside iGb5Cer ChEBI record	Not supplied	C38H63N3O28R21009.912 g/mol	2-starThird-party annotation
i-PrOTMSSource synonym · CHEBI:76336 Names & database links Source preferred name: trimethyl(1-methylethoxy)silane Matching names: i-PrOTMS; isopropoxy(trimethyl)silane; Isopropoxytrimethylsilane; isopropyl trimethylsilyl ether ChEBI record · PubChem search · CAS lookup	1825-64-5	C6H16OSi132.279 g/mol	3-starChEBI team
i-tartaric acidSource synonym · CHEBI:15673 Names & database links Source preferred name: meso-tartaric acid Matching names: i-tartaric acid; internally compensated tartaric acid ChEBI record · PubChem search · CAS lookup	147-73-9	C4H6O6150.086 g/mol	3-starChEBI team
i-trisaccharideSource synonym · CHEBI:59487 Names & database links Source preferred name: beta-D-Galp-(1->4)-beta-D-GlcpNAc-(1->3)-beta-D-Galp Matching names: i-trisaccharide ChEBI record	Not supplied	C20H35NO16545.491 g/mol	3-starChEBI team
I-UrobilinSource synonym · CHEBI:36378 Names & database links Source preferred name: urobilin Matching names: I-Urobilin ChEBI record · PubChem search · CAS lookup	1856-98-0	C33H42N4O6590.721 g/mol	3-starChEBI team
I-UrobilinogenSource synonym · CHEBI:29026 Names & database links Source preferred name: urobilinogen Matching names: I-Urobilinogen ChEBI record · PubChem search · CAS lookup	14684-37-8	C33H44N4O6592.737 g/mol	3-starChEBI team
I0103Source synonym · CHEBI:760312 Names & database links Source preferred name: etimupepimut Matching names: I0103; Io103 ChEBI record	Not supplied	C111H162N24O27S2296.725 g/mol	2-starThird-party annotation
I11Preferred name · CHEBI:76380 Names & database links Source preferred name: I11 Matching names: I11; (IMP)11; IMP11; inosine11; IpIpIpIpIpIpIpIpIpIpI ChEBI record	Not supplied	C110H123N44O78P113650.138 g/mol	3-starChEBI team
i15:0 plasmalogen zwitterionSource synonym · CHEBI:145180 Names & database links Source preferred name: 1-O-(13-methyl-1Z-tetradecenyl)-2-(13-methyltetradecanoyl)-sn-glycero-3-phosphoethanolamine zwitterion Matching names: i15:0 plasmalogen zwitterion ChEBI record	Not supplied	C35H70NO7P647.919 g/mol	2-starThird-party annotation
I1PSource synonym · CHEBI:18297 Names & database links Source preferred name: 1D-myo-inositol 1-phosphate Matching names: I1P; Inositol 1-phosphate; Ins(1)P; Ins1P ChEBI record · PubChem search · CAS lookup	15421-51-9	C6H13O9P260.135 g/mol	3-starChEBI team
I2Source synonym · CHEBI:17606 Names & database links Source preferred name: diiodine Matching names: I2; Iodine ChEBI record · PubChem search · CAS lookup	7553-56-2	I2253.808 g/mol	3-starChEBI team
I2(.+)Source synonym · CHEBI:36899 Names & database links Source preferred name: diiodine(.1+) Matching names: [I2](.+); I2(.+) ChEBI record	Not supplied	I2253.808 g/mol	3-starChEBI team
I2(.-)Source synonym · CHEBI:36898 Names & database links Source preferred name: diiodide(.1-) Matching names: [I2](.-); I2(.-) ChEBI record	Not supplied	I2253.808 g/mol	3-starChEBI team
I25Preferred name · CHEBI:76781 Names & database links Source preferred name: I25 Matching names: I25; (IMP)25; IMP25; inosine25; IpIpIpIpIpIpIpIpIpIpIpIpIpIpIpIpIpIpIpIpIpIpIpIpI ChEBI record	Not supplied	C250H276N100O173P248192.861 g/mol	3-starChEBI team
I2O9(4-)Source synonym · CHEBI:29913 Names & database links Source preferred name: nonaoxidodiiodate(4-) Matching names: I2O9(4-) ChEBI record	Not supplied	I2O9397.799 g/mol	3-starChEBI team
I2P(2-)Source synonym · CHEBI:84142 Names & database links Source preferred name: 1D-myo-inositol 2-phosphate(2-) Matching names: I2P(2-); Ins(2)P(2-); Ins2P(2-) ChEBI record	Not supplied	C6H11O9P258.119 g/mol	3-starChEBI team
I3CO2GlcSource synonym · CHEBI:65021 Names & database links Source preferred name: D-glucosyl indole-3-carboxylate Matching names: 1-(indol-3-ylcarbonyl)-D-glucose; I3CO2Glc ChEBI record	Not supplied	C15H17NO7323.301 g/mol	3-starChEBI team
I5B2Preferred name · CHEBI:222779 Names & database links Source preferred name: I5B2 Matching names: I5B2 ChEBI record	Not supplied	C23H32N3O7P493.497 g/mol	2-starThird-party annotation
i6aSource synonym · CHEBI:62881 Names & database links Source preferred name: N(6)-(Delta(2)-isopentenyl)adenosine Matching names: 2-IPA; 2iPA; i6a; Isopentenyladenosine; Isopentenyladenosine riboside ChEBI record · PubChem search · CAS lookup	7724-76-7	C15H21N5O4335.364 g/mol	3-starChEBI team
I6PSource synonym · CHEBI:64838 Names & database links Source preferred name: 1D-myo-inositol 6-phosphate Matching names: I6P; Ins(6)P; Ins6P ChEBI record	Not supplied	C6H13O9P260.135 g/mol	3-starChEBI team
I6P(2-)Source synonym · CHEBI:64841 Names & database links Source preferred name: 1D-myo-inositol 6-phosphate(2-) Matching names: I6P(2-); Ins(6)P(2-); Ins6P(2-) ChEBI record	Not supplied	C6H11O9P258.119 g/mol	3-starChEBI team
(2<i>E</i>)-but-2-enoateSource synonym · CHEBI:35899 Names & database links Source preferred name: crotonate Matching names: (2<i>E</i>)-but-2-enoate ChEBI record	Not supplied	C4H5O285.082 g/mol	3-starChEBI team
<i>N</i>-[(3<i>R</i>)-12-hydroxyjasmonyl]-<small>L</small>-isoleucineSource synonym · CHEBI:138626 Names & database links Source preferred name: N-[(3R)-12-hydroxyjasmonyl]-L-isoleucinate Matching names: <i>N</i>-[(3<i>R</i>)-12-hydroxyjasmonyl]-<small>L</small>-isoleucine ChEBI record	Not supplied	C18H28NO5338.424 g/mol	3-starChEBI team
<i>N</i>-[(3<i>R</i>)-jasmonyl]-<small>L</small>-isoleucineSource synonym · CHEBI:138627 Names & database links Source preferred name: N-[(3R)-jasmonyl]-L-isoleucinate Matching names: <i>N</i>-[(3<i>R</i>)-jasmonyl]-<small>L</small>-isoleucine ChEBI record	Not supplied	C18H28NO4322.425 g/mol	3-starChEBI team
(2<i>R</i>)-3-phosphoglyceroyl phosphateSource synonym · CHEBI:57604 Names & database links Source preferred name: 3-phosphonato-D-glyceroyl phosphate(4-) Matching names: (2<i>R</i>)-3-phosphoglyceroyl phosphate ChEBI record	Not supplied	C3H4O10P2262.003 g/mol	3-starChEBI team
(11<i>S</i>,14<i>S</i>,15<i>S</i>)-11-hydroxy-14,15-epoxy-(5<i>Z</i>,8<i>Z</i>,12<i>E</i>)-eicosatrienoateSource synonym · CHEBI:132201 Names & database links Source preferred name: 11(S)-hydroxy-14(S),15(S)-hepoxilin A3(1-) Matching names: (11<i>S</i>,14<i>S</i>,15<i>S</i>)-11-hydroxy-14,15-epoxy-(5<i>Z</i>,8<i>Z</i>,12<i>E</i>)-eicosatrienoate ChEBI record	Not supplied	C20H31O4335.464 g/mol	3-starChEBI team
2-(9<i>Z</i>-octadecenoyl)-<em>sn</em>-glycero-1-phospho-(2'-(9<i>Z</i>-octadecenoyl)-1'-<em>sn</em>-glycerol)Source synonym · CHEBI:139156 Names & database links Source preferred name: (S,S)-bis-(2-oleoylglycero)-1-phosphate(1-) Matching names: 2-(9<i>Z</i>-octadecenoyl)-<em>sn</em>-glycero-1-phospho-(2'-(9<i>Z</i>-octadecenoyl)-1'-<em>sn</em>-glycerol) ChEBI record	Not supplied	C42H78O10P774.05 g/mol	3-starChEBI team
2-(9<i>Z</i>-octadecenoyl)-<em>sn</em>-glycero-3-phospho-(2'-(9<i>Z</i>-octadecenoyl)-3'-<em>sn</em>-glycerol)Source synonym · CHEBI:139228 Names & database links Source preferred name: (R,R)-bis(2-oleoylglycero)-3-phosphate(1-) Matching names: 2-(9<i>Z</i>-octadecenoyl)-<em>sn</em>-glycero-3-phospho-(2'-(9<i>Z</i>-octadecenoyl)-3'-<em>sn</em>-glycerol) ChEBI record	Not supplied	C42H78O10P774.05 g/mol	3-starChEBI team
2-(9<i>Z</i>-octadecenoyl)-<em>sn</em>-glycero-3-phospho-(3'-<em>sn</em>-glycerol)Source synonym · CHEBI:139230 Names & database links Source preferred name: (R,R)-2-oleoylglycero-1-phospho-1'-glycerol(1-) Matching names: 2-(9<i>Z</i>-octadecenoyl)-<em>sn</em>-glycero-3-phospho-(3'-<em>sn</em>-glycerol) ChEBI record	Not supplied	C24H46O9P509.597 g/mol	3-starChEBI team
IA-307Source synonym · CHEBI:755306 Names & database links Source preferred name: acetosulfone sodium Matching names: IA-307 ChEBI record	Not supplied	Na.C14H14N3O5S2391.406 g/mol	2-starThird-party annotation
3-IAA glutamineSource synonym · CHEBI:70811 Names & database links Source preferred name: N-(indol-3-ylacetyl)glutamine Matching names: 3-IAA glutamine; indole-3-acetyl-glutamine ChEBI record	Not supplied	C15H17N3O4303.318 g/mol	3-starChEBI team
IAA-94Preferred name · CHEBI:34794 Names & database links Source preferred name: IAA-94 Matching names: IAA-94; Indanyloxyacetic acid ChEBI record · PubChem search · CAS lookup	54197-31-8	C17H18Cl2O4357.233 g/mol	2-starThird-party annotation
IAA-AlaSource synonym · CHEBI:71672 Names & database links Source preferred name: N-(indole-3-acetyl)-L-alanine Matching names: IAA-Ala; IAA-L-Ala ChEBI record	Not supplied	C13H14N2O3246.266 g/mol	3-starChEBI team
Iaa-glucoseSource synonym · CHEBI:17990 Names & database links Source preferred name: 1-O-(indol-3-ylacetyl)-beta-D-glucose Matching names: Iaa-glucose; indole-3-acetic acid beta-D-glucoside; Indole-3-acetyl-beta-1-D-glucose; Indole-3-acetyl-beta-1-D-glucoside ChEBI record · PubChem search · CAS lookup	19817-95-9	C16H19NO7337.328 g/mol	3-starChEBI team
IAA-LeuSource synonym · CHEBI:71675 Names & database links Source preferred name: N-(indole-3-acetyl)-L-leucine Matching names: IAA-L-Leu; IAA-Leu ChEBI record	Not supplied	C16H20N2O3288.347 g/mol	3-starChEBI team
IAA-LeuSource synonym · CHEBI:133521 Names & database links Source preferred name: N-(indole-3-acetyl)leucine Matching names: (indol-3-ylacetyl)leucine; (indole-3-acetyl)leucine; IAA-Leu; indole-3-acetyl-Leu; indole-3-acetyl-leucine ChEBI record	Not supplied	C16H20N2O3288.347 g/mol	3-starChEBI team
IAA-PheSource synonym · CHEBI:133527 Names & database links Source preferred name: N-(indole-3-acetyl)phenylalanine Matching names: IAA-Phe; IAA-phenylalanine; indole-3-acetyl-phenylalanine ChEBI record	Not supplied	C19H18N2O3322.364 g/mol	3-starChEBI team
IAA-ValSource synonym · CHEBI:133561 Names & database links Source preferred name: N-(indole-3-acetyl)valine Matching names: (indol-3-ylacetyl)valine; (indole-3-acetyl)valine; IAA-Val; IAA-valine; indole-3-acetyl-valine ChEBI record	Not supplied	C15H18N2O3274.32 g/mol	3-starChEBI team
5'-IAAAGCm(1)IUp-3'Preferred name · CHEBI:76371 Names & database links Source preferred name: 5'-IAAAGCm(1)IUp-3' Matching names: 5'-IAAAGCm(1)IUp-3'; I-A-A-A-G-C-m(1)I-Up; IAAAGCm(1)IUp; IpApApApGpCpm(1)IpUp ChEBI record	Not supplied	C79H97N33O55P82636.613 g/mol	3-starChEBI team
5'-IAAGCm(1)IUp-3'Preferred name · CHEBI:76370 Names & database links Source preferred name: 5'-IAAGCm(1)IUp-3' Matching names: 5'-IAAGCm(1)IUp-3'; I-A-A-G-C-m(1)I-Up; IAAGCm(1)IUp; IpApApGpCpm(1)IpUp ChEBI record	Not supplied	C69H85N28O49P72307.404 g/mol	3-starChEBI team
IAARh123Preferred name · CHEBI:5845 Names & database links Source preferred name: IAARh123 Matching names: IAARh123; [125I]Iodoaryl azido-rhodamine 123 ChEBI record	Not supplied	C28H19N5O5630.395 g/mol	2-starThird-party annotation
IAASPSource synonym · CHEBI:21484 Names & database links Source preferred name: N-(indole-3-acetyl)-L-aspartic acid Matching names: (Indole-3-acetyl)aspartic acid; (Indoleacetyl)aspartic acid; 3-Indolylacetyl-L-aspartic acid; IAA-Asp; IAASP; indole-3-acetyl-Asp; indole-3-acetyl-aspartic acid; Indole-3-acetyl-L-aspartic acid ChEBI record · PubChem search · CAS lookup	2456-73-7	C14H14N2O5290.275 g/mol	3-starChEBI team
IacftSource synonym · CHEBI:135696 Names & database links Source preferred name: altropane Matching names: Iacft ChEBI record · PubChem search · CAS lookup	180468-34-2	C18H21FINO2429.273 g/mol	2-starThird-party annotation
IACIPreferred name · CHEBI:5846 Names & database links Source preferred name: IACI Matching names: IACI ChEBI record	Not supplied	C26H27N6O3596.446 g/mol	2-starThird-party annotation
IACS-10759 HydrochloridePreferred name · CHEBI:231619 Names & database links Source preferred name: IACS-10759 Hydrochloride Matching names: IACS-10759 Hydrochloride ChEBI record · PubChem search · CAS lookup	1807523-99-4	C25H25F3N6O4S.HCl599.035 g/mol	2-starThird-party annotation
IACS-15509Source synonym · CHEBI:759860 Names & database links Source preferred name: bbp-398 Matching names: IACS-15509 ChEBI record	Not supplied	C21H26Cl2N4O2437.371 g/mol	2-starThird-party annotation
IadademstatPreferred name · CHEBI:234592 Names & database links Source preferred name: Iadademstat Matching names: Iadademstat ChEBI record · PubChem search · CAS lookup	1431304-21-0	C15H22N2230.355 g/mol	2-starThird-party annotation
5'-IAGCm(1)IUp-3'Preferred name · CHEBI:76369 Names & database links Source preferred name: 5'-IAGCm(1)IUp-3' Matching names: 5'-IAGCm(1)IUp-3'; I-A-G-C-m(1)I-Up; IAGCm(1)IUp; IpApGpCpm(1)IpUp ChEBI record	Not supplied	C59H73N23O43P61978.195 g/mol	3-starChEBI team
Iakyricidin APreferred name · CHEBI:226032 Names & database links Source preferred name: Iakyricidin A Matching names: Iakyricidin A ChEBI record	Not supplied	C27H39NO5457.611 g/mol	2-starThird-party annotation
Iakyricidin BPreferred name · CHEBI:226037 Names & database links Source preferred name: Iakyricidin B Matching names: Iakyricidin B ChEBI record	Not supplied	C29H43NO5485.665 g/mol	2-starThird-party annotation
Iakyricidin CPreferred name · CHEBI:226042 Names & database links Source preferred name: Iakyricidin C Matching names: Iakyricidin C ChEBI record	Not supplied	C28H41NO5471.638 g/mol	2-starThird-party annotation
Iakyricidin DPreferred name · CHEBI:226046 Names & database links Source preferred name: Iakyricidin D Matching names: Iakyricidin D ChEBI record	Not supplied	C29H43NO5485.665 g/mol	2-starThird-party annotation
IAN-cysteine conjugateSource synonym · CHEBI:64988 Names & database links Source preferred name: L-Cys(IAN) Matching names: IAN-cysteine conjugate; indole-3-acetonitrile-cysteine conjugate ChEBI record	Not supplied	C13H13N3O2S275.333 g/mol	3-starChEBI team
IAN-glutathione conjugateSource synonym · CHEBI:64980 Names & database links Source preferred name: gammaGluCys(IAN)Gly Matching names: IAN-glutathione conjugate ChEBI record	Not supplied	C20H23N5O6S461.5 g/mol	3-starChEBI team
IAN-glycylcysteine conjugateSource synonym · CHEBI:137676 Names & database links Source preferred name: Cys(IAN)-Gly Matching names: IAN-glycylcysteine conjugate; indole-3-acetonitrile-glycylcysteine conjugate ChEBI record	Not supplied	C15H16N4O3S332.385 g/mol	3-starChEBI team
IanthellinePreferred name · CHEBI:195168 Names & database links Source preferred name: Ianthelline Matching names: Ianthelline ChEBI record	Not supplied	C15H17Br2N5O3475.141 g/mol	2-starThird-party annotation
IAOx N-oxideSource synonym · CHEBI:136445 Names & database links Source preferred name: 1-aci-nitro-2-(1H-indol-3-yl)ethane Matching names: IAOx N-oxide; indole-3-acetaldoxime N-oxide ChEBI record	Not supplied	C10H10N2O2190.202 g/mol	3-starChEBI team
IARRHPYFSource synonym · CHEBI:149501 Names & database links Source preferred name: kinetensin (1-8) Matching names: I-A-R-R-H-P-Y-F; IARRHPYF; Ile-Ala-Arg-Arg-His-Pro-Tyr-Phe ChEBI record · PubChem search · CAS lookup	123496-28-6	C50H74N16O101059.244 g/mol	3-starChEBI team
IARRHPYFLSource synonym · CHEBI:80144 Names & database links Source preferred name: kinetensin Matching names: I-A-R-R-H-P-Y-F-L; IARRHPYFL; Ile-Ala-Arg-Arg-His-Pro-Tyr-Phe-Leu ChEBI record · PubChem search · CAS lookup	103131-69-7	C56H85N17O111172.404 g/mol	3-starChEBI team
IasocholineSource synonym · CHEBI:136031 Names & database links Source preferred name: fluoromethylcholine (18F) Matching names: Iasocholine ChEBI record · PubChem search · CAS lookup	475572-73-7	C5H13NO121.166 g/mol	2-starThird-party annotation
IB-00208Preferred name · CHEBI:198150 Names & database links Source preferred name: IB-00208 Matching names: IB-00208 ChEBI record	Not supplied	C36H34O12658.656 g/mol	2-starThird-party annotation
IB-01212Preferred name · CHEBI:210127 Names & database links Source preferred name: IB-01212 Matching names: IB-01212 ChEBI record	Not supplied	C56H88N8O101033.366 g/mol	2-starThird-party annotation
IB-96212Preferred name · CHEBI:199568 Names & database links Source preferred name: IB-96212 Matching names: IB-96212 ChEBI record	Not supplied	C54H94O16999.33 g/mol	2-starThird-party annotation
IBASource synonym · CHEBI:15997 Names & database links Source preferred name: 2-methylpropanamine Matching names: I-Butylamine; IBA; iso-Butylamine; iso-C4H9NH2; Isobutylamine ChEBI record · PubChem search · CAS lookup	78-81-9	C4H11N73.139 g/mol	3-starChEBI team
ibacitabinePreferred name · CHEBI:135996 Names & database links Source preferred name: ibacitabine Matching names: ibacitabine; ibacitabina; Ibacitabine; iododeoxycytidine ChEBI record · PubChem search · CAS lookup	611-53-0	C9H12IN3O4353.116 g/mol	2-starThird-party annotation
ibandronate sodiumPreferred name · CHEBI:756152 Names & database links Source preferred name: ibandronate sodium Matching names: ibandronate sodium; Iasibon; Ibandronate monosodium monohydrate; Ibandronate sodium component of dp-r206 ibandronate; Ibandronate sodium hydrate; Ibandronate sodium monohydrate; Ibandronic acid accord; Ibandronic acid sandoz; Ibandronic acid sodium salt; Ibandronic acid sodium salt monohydrate; Ibandronic acid teva; Ibandronic sodium monohydrate ChEBI record	Not supplied	H2O.C9H22NO7P2.Na359.228 g/mol	2-starThird-party annotation
IBCSource synonym · CHEBI:750541 Names & database links Source preferred name: bucrylate Matching names: IBC; Isobutyl cyanoacrylate ChEBI record	Not supplied	C8H11NO2153.181 g/mol	2-starThird-party annotation
ibcasertibPreferred name · CHEBI:758619 Names & database links Source preferred name: ibcasertib Matching names: ibcasertib ChEBI record	Not supplied	C27H21N3O3435.483 g/mol	2-starThird-party annotation
iberdomidePreferred name · CHEBI:756418 Names & database links Source preferred name: iberdomide Matching names: iberdomide; iberdomida ChEBI record	Not supplied	C25H27N3O5449.507 g/mol	2-starThird-party annotation
iberdomide hydrochloridePreferred name · CHEBI:756406 Names & database links Source preferred name: iberdomide hydrochloride Matching names: iberdomide hydrochloride; Iberdomide hydrochloride ChEBI record	Not supplied	HCl.C25H27N3O5485.968 g/mol	2-starThird-party annotation
iberinPreferred name · CHEBI:89494 Names & database links Source preferred name: iberin Matching names: iberin; 1-isothiocyanato-3-(methylsulfinyl)propane; 3-isothiocyanatopropyl methyl sulfoxide; IMSP ChEBI record · PubChem search · CAS lookup	505-44-2	C5H9NOS2163.267 g/mol	3-starChEBI team

About this I chemical list

What does “starting with I” mean?

The preferred name or a source-listed synonym begins with I, ignoring leading punctuation and numbers. Alphabetic prefixes such as D-, L-, N-, R-, S- and tert- are retained. A record appears once per letter, with its matching names grouped together. The same record can appear under another letter when it has a different name. Source synonyms can include trade names, abbreviations and names in other languages; they are labelled separately from preferred names.

How complete is the database?

This list includes every matching non-obsolete 2-star and 3-star entry with a formula, structure or valid CAS cross-reference in the downloaded ChEBI 256 snapshot. It excludes abstract classes without these substance identifiers. It is complete for that stated scope, not a list of every chemical known worldwide. ChEBI IDs define the records; related chemical forms are not merged solely because a CAS reference overlaps.

What do the data labels mean?

3-star entries are manually annotated by the ChEBI team; 2-star entries are annotated by third parties. “Not supplied” means that the source has no value for the field. CAS numbers are source cross-references with a valid checksum, not independent CAS verification. Formulas and masses retain source notation; the existing PubCAS profiles retain their documented editorial corrections. Search and lookup links may have no matching result.

Source: ChEBI downloads, EMBL-EBI · release 256 · retrieved 2026-10-11 · CC BY 4.0. Download coverage and source manifest. For handling or purchasing a chemical, verify the exact form and consult the supplier’s current SDS.