Chemical names · alphabetical database

Chemicals Starting with X

Find chemicals whose preferred name or source synonym starts with X. Browse the full list, check CAS numbers and formulas, or search within all 872 matching records.

Browse the database ↓ · Coverage and naming rules

872Matching chemical records

214With CAS cross-references

276ChEBI team annotated

Examples of chemicals starting with X

Xofigo444811-40-9 · [223Ra]Cl2

Xylitol87-99-0 · C5H12O5

XB 2879B461-58-5 · C2H4N4

Xenon(0)7440-63-3 · Xe

Xylazine7361-61-7 · C12H16N2S

Xanthotoxin298-81-7 · C12H8O4

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872 records · showing 1–100

Chemicals starting with X, page 1
Chemical & matching names	CAS number	Formula & mass	Annotation
X 537ASource synonym · CHEBI:92181 Names & database links Source preferred name: lasalocid Matching names: X 537A; X-537A ChEBI record · PubChem search · CAS lookup	25999-31-9	C34H54O8590.798 g/mol	3-starChEBI team
X 70-540-3Source synonym · CHEBI:230529 Names & database links Source preferred name: hexafluoropropylene oxide trimer acid Matching names: X 70-540-3 ChEBI record · PubChem search · CAS lookup	13252-14-7	C9HF17O4496.069 g/mol	3-starChEBI team
(x)-1,2-Propanediol 1-O-b-D-glucopyranosidePreferred name · CHEBI:174234 Names & database links Source preferred name: (x)-1,2-Propanediol 1-O-b-D-glucopyranoside Matching names: (x)-1,2-Propanediol 1-O-b-D-glucopyranoside ChEBI record	Not supplied	C9H18O7238.236 g/mol	2-starThird-party annotation
(x)-1-Nonen-3-yl acetatePreferred name · CHEBI:172068 Names & database links Source preferred name: (x)-1-Nonen-3-yl acetate Matching names: (x)-1-Nonen-3-yl acetate ChEBI record · PubChem search · CAS lookup	31795-37-6	C11H20O2184.279 g/mol	2-starThird-party annotation
(x)-2-Heptanol glucosidePreferred name · CHEBI:180777 Names & database links Source preferred name: (x)-2-Heptanol glucoside Matching names: (x)-2-Heptanol glucoside ChEBI record	Not supplied	C13H26O6278.345 g/mol	2-starThird-party annotation
(1'x,2S)-2-(1,2-Dihydroxy-1-methylethyl)-2,3-dihydro-7H-furo[3,2-g][1]benzopyran-7-one 2'-glucosidePreferred name · CHEBI:176058 Names & database links Source preferred name: (1'x,2S)-2-(1,2-Dihydroxy-1-methylethyl)-2,3-dihydro-7H-furo[3,2-g][1]benzopyran-7-one 2'-glucoside Matching names: (1'x,2S)-2-(1,2-Dihydroxy-1-methylethyl)-2,3-dihydro-7H-furo[3,2-g][1]benzopyran-7-one 2'-glucoside ChEBI record	Not supplied	C20H24O10424.402 g/mol	2-starThird-party annotation
(1x,2x)-Guaiacylglycerol 2-glucosidePreferred name · CHEBI:175824 Names & database links Source preferred name: (1x,2x)-Guaiacylglycerol 2-glucoside Matching names: (1x,2x)-Guaiacylglycerol 2-glucoside ChEBI record	Not supplied	C16H24O10376.358 g/mol	2-starThird-party annotation
(1x,2x)-Guaiacylglycerol 3-glucosidePreferred name · CHEBI:175826 Names & database links Source preferred name: (1x,2x)-Guaiacylglycerol 3-glucoside Matching names: (1x,2x)-Guaiacylglycerol 3-glucoside ChEBI record	Not supplied	C16H24O10376.358 g/mol	2-starThird-party annotation
(3'x,5'a,9'x,10'b)-O-(6-Oxo-7-drimen-11-yl)umbelliferonePreferred name · CHEBI:172030 Names & database links Source preferred name: (3'x,5'a,9'x,10'b)-O-(6-Oxo-7-drimen-11-yl)umbelliferone Matching names: (3'x,5'a,9'x,10'b)-O-(6-Oxo-7-drimen-11-yl)umbelliferone ChEBI record	Not supplied	C24H28O4380.484 g/mol	2-starThird-party annotation
(3x,5x,10x)-9,10-Didehydroisohumbertiol O-[rhamnosyl-(1->4)-rhamnosyl-(1->2)-[rhamnosyl-(1->6)]-glucoside]Preferred name · CHEBI:168618 Names & database links Source preferred name: (3x,5x,10x)-9,10-Didehydroisohumbertiol O-[rhamnosyl-(1->4)-rhamnosyl-(1->2)-[rhamnosyl-(1->6)]-glucoside] Matching names: (3x,5x,10x)-9,10-Didehydroisohumbertiol O-[rhamnosyl-(1->4)-rhamnosyl-(1->2)-[rhamnosyl-(1->6)]-glucoside] ChEBI record	Not supplied	C39H62O18818.907 g/mol	2-starThird-party annotation
(5x,6x)-5,6-Epoxyergosta-7,22-dien-3-olPreferred name · CHEBI:168418 Names & database links Source preferred name: (5x,6x)-5,6-Epoxyergosta-7,22-dien-3-ol Matching names: (5x,6x)-5,6-Epoxyergosta-7,22-dien-3-ol ChEBI record	Not supplied	C28H44O2412.658 g/mol	2-starThird-party annotation
(7'x,8'x)-4,7'-Epoxy-3,8'-bilign-7-ene-3,5'-dimethoxy-4',9,9'-triolPreferred name · CHEBI:175608 Names & database links Source preferred name: (7'x,8'x)-4,7'-Epoxy-3,8'-bilign-7-ene-3,5'-dimethoxy-4',9,9'-triol Matching names: (7'x,8'x)-4,7'-Epoxy-3,8'-bilign-7-ene-3,5'-dimethoxy-4',9,9'-triol ChEBI record	Not supplied	C20H22O6358.39 g/mol	2-starThird-party annotation
2x-121Preferred name · CHEBI:755671 Names & database links Source preferred name: 2x-121 Matching names: 2x-121; 2X-121 ChEBI record	Not supplied	C18H15N5O317.352 g/mol	2-starThird-party annotation
X-14547ASource synonym · CHEBI:141380 Names & database links Source preferred name: indanomycin Matching names: (-)-X-14547A; X-14547A ChEBI record	Not supplied	C31H43NO4493.688 g/mol	3-starChEBI team
X-14847Preferred name · CHEBI:223492 Names & database links Source preferred name: X-14847 Matching names: X-14847 ChEBI record	Not supplied	C12H23NO10341.313 g/mol	2-starThird-party annotation
X-14868APreferred name · CHEBI:219859 Names & database links Source preferred name: X-14868A Matching names: X-14868A ChEBI record	Not supplied	C47H80O17917.14 g/mol	2-starThird-party annotation
X-14868BPreferred name · CHEBI:219865 Names & database links Source preferred name: X-14868B Matching names: X-14868B ChEBI record	Not supplied	C48H82O17931.167 g/mol	2-starThird-party annotation
X-14868CPreferred name · CHEBI:219873 Names & database links Source preferred name: X-14868C Matching names: X-14868C ChEBI record	Not supplied	C46H78O17903.113 g/mol	2-starThird-party annotation
X-14868DPreferred name · CHEBI:219880 Names & database links Source preferred name: X-14868D Matching names: X-14868D ChEBI record	Not supplied	C47H80O17917.14 g/mol	2-starThird-party annotation
X-14873APreferred name · CHEBI:219597 Names & database links Source preferred name: X-14873A Matching names: X-14873A ChEBI record	Not supplied	C35H62O11658.87 g/mol	2-starThird-party annotation
X-14889-DPreferred name · CHEBI:201030 Names & database links Source preferred name: X-14889-D Matching names: X-14889-D ChEBI record	Not supplied	C33H58O7566.82 g/mol	2-starThird-party annotation
X-14889APreferred name · CHEBI:211626 Names & database links Source preferred name: X-14889A Matching names: X-14889A ChEBI record	Not supplied	C33H60O8584.835 g/mol	2-starThird-party annotation
X-14889CPreferred name · CHEBI:204715 Names & database links Source preferred name: X-14889C Matching names: X-14889C ChEBI record	Not supplied	C33H58O10614.817 g/mol	2-starThird-party annotation
X-206Preferred name · CHEBI:80126 Names & database links Source preferred name: X-206 Matching names: X-206 ChEBI record	Not supplied	C47H82O14871.159 g/mol	2-starThird-party annotation
X-263Source synonym · CHEBI:194525 Names & database links Source preferred name: indolauxipyr Matching names: X-263; X12312263 ChEBI record · PubChem search · CAS lookup	1628702-28-2	C14H8ClF2N3O2323.686 g/mol	3-starChEBI team
X-340Source synonym · CHEBI:29671 Names & database links Source preferred name: Resistomycin Matching names: X-340 ChEBI record · PubChem search · CAS lookup	20004-62-0	C22H16O6376.364 g/mol	2-starThird-party annotation
X-396Source synonym · CHEBI:756608 Names & database links Source preferred name: ensartinib Matching names: X-396 ChEBI record	Not supplied	C26H27Cl2FN6O3561.445 g/mol	2-starThird-party annotation
X-396 HClSource synonym · CHEBI:756725 Names & database links Source preferred name: ensartinib hydrochloride Matching names: X-396 DIHYDROCHLORIDE; X-396 HCl ChEBI record	Not supplied	HCl.C26H27Cl2FN6O3.HCl634.367 g/mol	2-starThird-party annotation
X-andronSource synonym · CHEBI:135030 Names & database links Source preferred name: cioteronel Matching names: X-andron ChEBI record · PubChem search · CAS lookup	89672-11-7	C16H28O2252.398 g/mol	2-starThird-party annotation
X-GalSource synonym · CHEBI:75055 Names & database links Source preferred name: 5-bromo-4-chloro-3-indolyl beta-D-galactoside Matching names: X-Gal; X-gal ChEBI record · PubChem search · CAS lookup	7240-90-6	C14H15BrClNO6408.632 g/mol	3-starChEBI team
X-GlcSource synonym · CHEBI:75424 Names & database links Source preferred name: 5-bromo-4-chloro-3-indolyl beta-D-glucoside Matching names: X-Glc; X-glucoside ChEBI record · PubChem search · CAS lookup	15548-60-4	C14H15BrClNO6408.632 g/mol	3-starChEBI team
X-OtagSource synonym · CHEBI:7790 Names & database links Source preferred name: orphenadrine citrate Matching names: X-Otag ChEBI record · PubChem search · CAS lookup	4682-36-4	C18H23NO.C6H8O7461.511 g/mol	3-starChEBI team
X-PhosSource synonym · CHEBI:75508 Names & database links Source preferred name: 5-bromo-4-chloro-3-indolyl phosphate Matching names: X-Phos ChEBI record · PubChem search · CAS lookup	38404-93-2	C8H6BrClNO4P326.47 g/mol	3-starChEBI team
X-rhod-1Preferred name · CHEBI:52780 Names & database links Source preferred name: X-rhod-1 Matching names: X-rhod-1 ChEBI record	Not supplied	Br.C60H67N4O191228.109 g/mol	3-starChEBI team
X-rhod-1(1+)Preferred name · CHEBI:52935 Names & database links Source preferred name: X-rhod-1(1+) Matching names: X-rhod-1(1+); X-rhod-1 cation ChEBI record	Not supplied	C60H67N4O191148.205 g/mol	3-starChEBI team
X-trozineSource synonym · CHEBI:750406 Names & database links Source preferred name: phendimetrazine tartrate Matching names: X-trozine; X-trozine l.a. ChEBI record	Not supplied	C4H6O6.C12H17NO341.36 g/mol	2-starThird-party annotation
X-TrpPreferred name · CHEBI:10047 Names & database links Source preferred name: X-Trp Matching names: X-Trp ChEBI record	Not supplied	C11H11N2O2X203.221 g/mol	2-starThird-party annotation
X0023Source synonym · CHEBI:759292 Names & database links Source preferred name: aspirin trelamine Matching names: X-0023; X0023 ChEBI record	Not supplied	C15H21NO4279.336 g/mol	2-starThird-party annotation
X0023 HYDROCHLORIDESource synonym · CHEBI:759293 Names & database links Source preferred name: aspirin trelamine hydrochloride Matching names: X-0023 HYDROCHLORIDE; X0023 HYDROCHLORIDE ChEBI record	Not supplied	HCl.C15H21NO4315.797 g/mol	2-starThird-party annotation
X1 gangliosideSource synonym · CHEBI:79101 Names & database links Source preferred name: ganglioside X1 Matching names: X1 ganglioside ChEBI record	Not supplied	C89H157N5O411953.229 g/mol	3-starChEBI team
X2 gangliosideSource synonym · CHEBI:79100 Names & database links Source preferred name: ganglioside X2 Matching names: X2 ganglioside ChEBI record	Not supplied	C95H167N5O462115.37 g/mol	3-starChEBI team
X3 GanglioSource synonym · CHEBI:234693 Names & database links Source preferred name: Fucalpha1-3[Fucalpha1-3(NeuAcalpha2-3Galbeta1-4)GlcNAcbeta1-3Galbeta1-4]GlcNAcbeta1-3Galbeta1-4GlcNAcbeta1-3Galbeta1-4Glc-ceramide Matching names: X3 Ganglio ChEBI record	Not supplied	C81H132N5O59R22119.923 g/mol	2-starThird-party annotation
X3 GanglioSource synonym · CHEBI:234695 Names & database links Source preferred name: Fucalpha1-3[Fucalpha1-3(NeuAcalpha2-3Galbeta1-4)GlcNAcbeta1-3Galbeta1-4GlcNAcbeta1-3Galbeta1-4]GlcNAcbeta1-3Galbeta1-4Glc-ceramide Matching names: X3 Ganglio ChEBI record	Not supplied	C81H132N5O59R22119.923 g/mol	2-starThird-party annotation
X4 GanglioSource synonym · CHEBI:234696 Names & database links Source preferred name: Fucalpha1-3\{Fucalpha1-3[Fucalpha1-3(NeuAcalpha2-3Galbeta1-4)GlcNAcbeta1-3Galbeta1-4]GlcNAcbeta1-3Galbeta1-4\}GlcNAcbeta1-3Galbeta1-4Glc-ceramide Matching names: X4 Ganglio ChEBI record	Not supplied	C87H142N5O63R22266.065 g/mol	2-starThird-party annotation
X439161Source synonym · CHEBI:757699 Names & database links Source preferred name: fisogatinib Matching names: X-439161; X439161 ChEBI record	Not supplied	C24H24Cl2N4O4503.386 g/mol	2-starThird-party annotation
X4p001Source synonym · CHEBI:138865 Names & database links Source preferred name: AMD 070 Matching names: X 4P-001; X4P-001; X4p001; Xolremdi ChEBI record	Not supplied	C21H27N5349.482 g/mol	2-starThird-party annotation
X5050Preferred name · CHEBI:230505 Names & database links Source preferred name: X5050 Matching names: X5050 ChEBI record · PubChem search · CAS lookup	2404756-81-4	C17H15N3O3309.325 g/mol	2-starThird-party annotation
X581238Source synonym · CHEBI:757728 Names & database links Source preferred name: pralsetinib Matching names: X-581238; X581238 ChEBI record	Not supplied	C27H32FN9O2533.612 g/mol	2-starThird-party annotation
X720776Source synonym · CHEBI:756628 Names & database links Source preferred name: avapritinib Matching names: X-720776; X720776 ChEBI record	Not supplied	C26H27FN10498.57 g/mol	2-starThird-party annotation
Xaa-ArgPreferred name · CHEBI:10051 Names & database links Source preferred name: Xaa-Arg Matching names: Xaa-Arg ChEBI record	Not supplied	C8H16N5O3R230.245 g/mol	2-starThird-party annotation
Xaa-HisPreferred name · CHEBI:10052 Names & database links Source preferred name: Xaa-His Matching names: Xaa-His ChEBI record	Not supplied	C8H11N4O3R211.198 g/mol	2-starThird-party annotation
Xaa-L-proline zwitterionPreferred name · CHEBI:195196 Names & database links Source preferred name: Xaa-L-proline zwitterion Matching names: Xaa-L-proline zwitterion; Xaa-L-Pro dipeptide ChEBI record	Not supplied	C7H11N2O3R171.174 g/mol	2-starThird-party annotation
Xaa-LysPreferred name · CHEBI:10053 Names & database links Source preferred name: Xaa-Lys Matching names: Xaa-Lys ChEBI record	Not supplied	C8H16N3O3R202.231 g/mol	2-starThird-party annotation
Xaa-ornithinePreferred name · CHEBI:10054 Names & database links Source preferred name: Xaa-ornithine Matching names: Xaa-ornithine ChEBI record	Not supplied	C7H14N3O3R188.205 g/mol	2-starThird-party annotation
Xaa-Pro-ZaaPreferred name · CHEBI:137048 Names & database links Source preferred name: Xaa-Pro-Zaa Matching names: Xaa-Pro-Zaa ChEBI record	Not supplied	C9H13N3O4R2227.218 g/mol	3-starChEBI team
XAA296Source synonym · CHEBI:80700 Names & database links Source preferred name: Discodermolide Matching names: XAA 296; XAA-296; XAA296 ChEBI record · PubChem search · CAS lookup	127943-53-7	C33H55NO8593.802 g/mol	2-starThird-party annotation
xadagoSource synonym · CHEBI:134718 Names & database links Source preferred name: safinamide Matching names: xadago ChEBI record · PubChem search · CAS lookup	133865-89-1	C17H19FN2O2302.349 g/mol	2-starThird-party annotation
XalatanSource synonym · CHEBI:6384 Names & database links Source preferred name: latanoprost Matching names: Xalatan ChEBI record · PubChem search · CAS lookup	130209-82-4	C26H40O5432.601 g/mol	3-starChEBI team
xaliprodenPreferred name · CHEBI:48520 Names & database links Source preferred name: xaliproden Matching names: xaliproden ChEBI record · PubChem search · CAS lookup	135354-02-8	C24H22F3N381.441 g/mol	3-starChEBI team
Xaliproden hydrochloridePreferred name · CHEBI:32302 Names & database links Source preferred name: Xaliproden hydrochloride Matching names: Xaliproden hydrochloride ChEBI record · PubChem search · CAS lookup	90494-79-4	C24H22F3N.HCl417.902 g/mol	2-starThird-party annotation
xaluprineSource synonym · CHEBI:94796 Names & database links Source preferred name: 3,7-dihydropurine-6-thione Matching names: xaluprine ChEBI record · PubChem search · CAS lookup	50-44-2	C5H4N4S152.182 g/mol	2-starThird-party annotation
xalylSource synonym · CHEBI:134787 Names & database links Source preferred name: isovaleryl diethylamide Matching names: xalyl ChEBI record · PubChem search · CAS lookup	533-32-4	C9H19NO157.257 g/mol	2-starThird-party annotation
XamoterolPreferred name · CHEBI:10055 Names & database links Source preferred name: Xamoterol Matching names: Xamoterol; xamoterol fumarate; xamoterol hemifumarate ChEBI record · PubChem search · CAS lookup	81801-12-9	C16H25N3O5339.392 g/mol	2-starThird-party annotation
XanSource synonym · CHEBI:17712 Names & database links Source preferred name: 9H-xanthine Matching names: Xan; XANTHINE; Xanthine; xanthine ChEBI record · PubChem search · CAS lookup	69-89-6	C5H4N4O2152.113 g/mol	3-starChEBI team
XAN 02Source synonym · CHEBI:751136 Names & database links Source preferred name: amonafide l-malate Matching names: XAN 02; XAN-02; Xanafide ChEBI record	Not supplied	C4H6O5.C16H17N3O2417.418 g/mol	2-starThird-party annotation
Xanalteric acid IPreferred name · CHEBI:206722 Names & database links Source preferred name: Xanalteric acid I Matching names: Xanalteric acid I ChEBI record	Not supplied	C20H12O7364.309 g/mol	2-starThird-party annotation
Xanalteric acid IIPreferred name · CHEBI:206248 Names & database links Source preferred name: Xanalteric acid II Matching names: Xanalteric acid II ChEBI record	Not supplied	C20H12O7364.309 g/mol	2-starThird-party annotation
XanamemSource synonym · CHEBI:759968 Names & database links Source preferred name: emestedastat Matching names: Xanamem ChEBI record	Not supplied	C19H19N5O2S381.461 g/mol	2-starThird-party annotation
XanaxSource synonym · CHEBI:2611 Names & database links Source preferred name: alprazolam Matching names: Xanax ChEBI record · PubChem search · CAS lookup	28981-97-7	C17H13ClN4308.772 g/mol	3-starChEBI team
xanbonSource synonym · CHEBI:134938 Names & database links Source preferred name: ozagrel Matching names: xanbon ChEBI record · PubChem search · CAS lookup	82571-53-7	C13H12N2O2228.251 g/mol	2-starThird-party annotation
xanomelinePreferred name · CHEBI:10056 Names & database links Source preferred name: xanomeline Matching names: xanomeline; Xanomeline ChEBI record · PubChem search · CAS lookup	131986-45-3	C14H23N3OS281.425 g/mol	3-starChEBI team
xanomeline tartratePreferred name · CHEBI:754950 Names & database links Source preferred name: xanomeline tartrate Matching names: xanomeline tartrate; Xanomeline (+)-l-hydrogen tartrate; Xanomeline tartaric acid; Xanomeline tartrate component of cobenfy ChEBI record	Not supplied	C4H6O6.C14H23N3OS431.511 g/mol	2-starThird-party annotation
xanoxate sodiumPreferred name · CHEBI:750903 Names & database links Source preferred name: xanoxate sodium Matching names: xanoxate sodium; Xanoxate sodium ChEBI record	Not supplied	Na.C17H13O5320.276 g/mol	2-starThird-party annotation
xanoxic acidPreferred name · CHEBI:750834 Names & database links Source preferred name: xanoxic acid Matching names: xanoxic acid ChEBI record	Not supplied	C17H14O5298.294 g/mol	2-starThird-party annotation
XanthanSource synonym · CHEBI:10057 Names & database links Source preferred name: 9H-xanthene Matching names: Xanthan; Xanthene ChEBI record · PubChem search · CAS lookup	92-83-1	C13H10O182.222 g/mol	3-starChEBI team
XanthatinPreferred name · CHEBI:10058 Names & database links Source preferred name: Xanthatin Matching names: Xanthatin ChEBI record · PubChem search · CAS lookup	26791-73-1	C15H18O3246.306 g/mol	2-starThird-party annotation
xanthaurineSource synonym · CHEBI:16243 Names & database links Source preferred name: quercetin Matching names: xanthaurine ChEBI record · PubChem search · CAS lookup	117-39-5	C15H10O7302.238 g/mol	3-starChEBI team
XanthazolSource synonym · CHEBI:40850 Names & database links Source preferred name: 8-azaxanthine Matching names: Xanthazol ChEBI record · PubChem search · CAS lookup	1468-26-4	C4H3N5O2153.101 g/mol	3-starChEBI team
xanthenePreferred name · CHEBI:36440 Names & database links Source preferred name: xanthene Matching names: xanthene ChEBI record	Not supplied	C13H10O182.218 g/mol	3-starChEBI team
Xanthene-9-carboxylic acidPreferred name · CHEBI:191142 Names & database links Source preferred name: Xanthene-9-carboxylic acid Matching names: Xanthene-9-carboxylic acid ChEBI record · PubChem search · CAS lookup	82-07-5	C14H10O3226.231 g/mol	2-starThird-party annotation
XanthepinonePreferred name · CHEBI:205307 Names & database links Source preferred name: Xanthepinone Matching names: Xanthepinone ChEBI record	Not supplied	C16H12O8332.264 g/mol	2-starThird-party annotation
xanthinePreferred name · CHEBI:15318 Names & database links Source preferred name: xanthine Matching names: xanthine; xanthines ChEBI record	Not supplied	C5H4N4O2152.111 g/mol	3-starChEBI team
XanthineSource synonym · CHEBI:48517 Names & database links Source preferred name: 7H-xanthine Matching names: Xanthine ChEBI record · PubChem search · CAS lookup	69-89-6	C5H4N4O2152.113 g/mol	3-starChEBI team
xanthine-8-carboxylatePreferred name · CHEBI:16806 Names & database links Source preferred name: xanthine-8-carboxylate Matching names: xanthine-8-carboxylate ChEBI record	Not supplied	C6H3N4O4195.114 g/mol	3-starChEBI team
xanthine-8-carboxylic acidPreferred name · CHEBI:30881 Names & database links Source preferred name: xanthine-8-carboxylic acid Matching names: xanthine-8-carboxylic acid ChEBI record	Not supplied	C6H4N4O4196.122 g/mol	3-starChEBI team
XanthininPreferred name · CHEBI:10061 Names & database links Source preferred name: Xanthinin Matching names: Xanthinin ChEBI record · PubChem search · CAS lookup	580-49-4	C17H22O5306.358 g/mol	2-starThird-party annotation
xanthinolSource synonym · CHEBI:94314 Names & database links Source preferred name: 7-[2-hydroxy-3-[2-hydroxyethyl(methyl)amino]propyl]-1,3-dimethylpurine-2,6-dione Matching names: xanthinol; xanthinol niacinate; xanthinol nicotinate; xantinol nicotinate ChEBI record · PubChem search · CAS lookup	437-74-1	C13H21N5O4311.342 g/mol	2-starThird-party annotation
Xanthoangelol CPreferred name · CHEBI:186626 Names & database links Source preferred name: Xanthoangelol C Matching names: Xanthoangelol C ChEBI record	Not supplied	C22H22O5366.413 g/mol	2-starThird-party annotation
Xanthoangelol DPreferred name · CHEBI:192878 Names & database links Source preferred name: Xanthoangelol D Matching names: Xanthoangelol D ChEBI record · PubChem search · CAS lookup	132998-83-5	C21H22O5354.402 g/mol	2-starThird-party annotation
xanthoaphinPreferred name · CHEBI:18073 Names & database links Source preferred name: xanthoaphin Matching names: xanthoaphin; Xanthoaphin; xanthoaphin-fb ChEBI record · PubChem search · CAS lookup	1674-44-8	C30H26O10546.528 g/mol	3-starChEBI team
xanthoaphin(1-)Preferred name · CHEBI:77712 Names & database links Source preferred name: xanthoaphin(1-) Matching names: xanthoaphin(1-); xanthoaphin ChEBI record	Not supplied	C30H25O10545.52 g/mol	3-starChEBI team
Xanthobaccin APreferred name · CHEBI:214960 Names & database links Source preferred name: Xanthobaccin A Matching names: Xanthobaccin A ChEBI record	Not supplied	C29H38N2O6510.631 g/mol	2-starThird-party annotation
xanthochymolPreferred name · CHEBI:70327 Names & database links Source preferred name: xanthochymol Matching names: xanthochymol; Xanthochymol ChEBI record · PubChem search · CAS lookup	52617-32-0	C38H50O6602.812 g/mol	2-starThird-party annotation
XanthochymusidePreferred name · CHEBI:192843 Names & database links Source preferred name: Xanthochymuside Matching names: Xanthochymuside ChEBI record	Not supplied	C36H32O16720.636 g/mol	2-starThird-party annotation
Xanthocillin-X dimethyletherPreferred name · CHEBI:199696 Names & database links Source preferred name: Xanthocillin-X dimethylether Matching names: Xanthocillin-X dimethylether ChEBI record	Not supplied	C20H16N2O2316.36 g/mol	2-starThird-party annotation
Xanthocillin-X monomethyletherPreferred name · CHEBI:213004 Names & database links Source preferred name: Xanthocillin-X monomethylether Matching names: Xanthocillin-X monomethylether ChEBI record	Not supplied	C19H14N2O2302.333 g/mol	2-starThird-party annotation
XanthoepocinPreferred name · CHEBI:202858 Names & database links Source preferred name: Xanthoepocin Matching names: Xanthoepocin ChEBI record	Not supplied	C30H22O14606.492 g/mol	2-starThird-party annotation
XanthofulvinPreferred name · CHEBI:202169 Names & database links Source preferred name: Xanthofulvin Matching names: Xanthofulvin ChEBI record	Not supplied	C28H18O14578.438 g/mol	2-starThird-party annotation
XanthofusinPreferred name · CHEBI:214227 Names & database links Source preferred name: Xanthofusin Matching names: Xanthofusin ChEBI record	Not supplied	C8H8O4168.148 g/mol	2-starThird-party annotation
xanthogalenolPreferred name · CHEBI:136826 Names & database links Source preferred name: xanthogalenol Matching names: xanthogalenol ChEBI record · PubChem search · CAS lookup	265659-35-6	C21H22O5354.402 g/mol	3-starChEBI team

About this X chemical list

What does “starting with X” mean?

The preferred name or a source-listed synonym begins with X, 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.