Chemical names · alphabetical database

Chemicals Starting with W

Find chemicals whose preferred name or source synonym starts with W. Browse the full list, check CAS numbers and formulas, or search within all 643 matching records.

Browse the database ↓ · Coverage and naming rules

643Matching chemical records

221With CAS cross-references

229ChEBI team annotated

Examples of chemicals starting with W

Water7732-18-5 · H2O

Warfarin81-81-2 · C19H16O4

W73-22-3 · C11H12N2O2

W 37692-13-7 · C6H15N5

Walix21256-18-8 · C18H15NO3

W-3100M19388-87-5 · C7H16N4O4S2

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643 records · showing 1–100

Chemicals starting with W, page 1
Chemical & matching names	CAS number	Formula & mass	Annotation
WSource synonym · CHEBI:16828 Names & database links Source preferred name: L-tryptophan Matching names: W ChEBI record · PubChem search · CAS lookup	73-22-3	C11H12N2O2204.229 g/mol	3-starChEBI team
WSource synonym · CHEBI:27897 Names & database links Source preferred name: tryptophan Matching names: W ChEBI record · PubChem search · CAS lookup	54-12-6	C11H12N2O2204.229 g/mol	3-starChEBI team
WSource synonym · CHEBI:27998 Names & database links Source preferred name: tungsten atom Matching names: 74W; W; Wolfram; wolfram; wolframio; wolframium ChEBI record · PubChem search · CAS lookup	7440-33-7	W183.84 g/mol	3-starChEBI team
WSource synonym · CHEBI:29954 Names & database links Source preferred name: L-tryptophan residue Matching names: W ChEBI record	Not supplied	C11H10N2O186.214 g/mol	3-starChEBI team
(183)WSource synonym · CHEBI:52462 Names & database links Source preferred name: tungsten-183 atom Matching names: (183)74W; (183)W ChEBI record	Not supplied	[183W]182.95 g/mol	3-starChEBI team
361WSource synonym · CHEBI:64189 Names & database links Source preferred name: abacavir 5'-glucuronide Matching names: 361W ChEBI record	Not supplied	C20H26N6O7462.463 g/mol	3-starChEBI team
1400WSource synonym · CHEBI:90721 Names & database links Source preferred name: N-[3-(aminomethyl)benzyl]acetamidine Matching names: 1400 W; 1400W; W 1400; W1400 ChEBI record · PubChem search · CAS lookup	180001-34-7	C10H15N3177.251 g/mol	3-starChEBI team
3744WSource synonym · CHEBI:143121 Names & database links Source preferred name: GW296115X Matching names: 3744-W; 3744W ChEBI record · PubChem search · CAS lookup	118458-58-5	C22H15N3O4385.379 g/mol	3-starChEBI team
W 1597Source synonym · CHEBI:134805 Names & database links Source preferred name: sodium hexacyclonate Matching names: W 1597 ChEBI record · PubChem search · CAS lookup	7009-49-6	C9H15O3.Na194.206 g/mol	3-starChEBI team
W 2180Source synonym · CHEBI:756239 Names & database links Source preferred name: suxemerid sulfate Matching names: W 2180; W-2180 ChEBI record	Not supplied	H2O4S.C24H44N2O4.H2O4S620.784 g/mol	2-starThird-party annotation
W 2197Source synonym · CHEBI:135114 Names & database links Source preferred name: pentrinitrol Matching names: W 2197; W-2197 ChEBI record · PubChem search · CAS lookup	1607-17-6	C5H9N3O10271.138 g/mol	2-starThird-party annotation
W 2291ASource synonym · CHEBI:752323 Names & database links Source preferred name: mimbane hydrochloride Matching names: W 2291A; W-2291A ChEBI record	Not supplied	HCl.C20H26N2330.903 g/mol	2-starThird-party annotation
W 2394ASource synonym · CHEBI:756096 Names & database links Source preferred name: pemerid nitrate Matching names: W 2394A; W-2394A ChEBI record	Not supplied	HNO3.C15H32N2O.HNO3382.458 g/mol	2-starThird-party annotation
W 2426Source synonym · CHEBI:749284 Names & database links Source preferred name: chlorphentermine hydrochloride Matching names: W 2426; W-2426 ChEBI record	Not supplied	HCl.C10H14ClN220.143 g/mol	2-starThird-party annotation
W 2900ASource synonym · CHEBI:135174 Names & database links Source preferred name: etozolin Matching names: W 2900A; W-2900A ChEBI record · PubChem search · CAS lookup	73-09-6	C13H20N2O3S284.381 g/mol	2-starThird-party annotation
W 2965 ASource synonym · CHEBI:748451 Names & database links Source preferred name: acetryptine Matching names: W 2965 A; W-2965-A ChEBI record	Not supplied	C12H14N2O202.257 g/mol	2-starThird-party annotation
W 3207BSource synonym · CHEBI:752640 Names & database links Source preferred name: modaline sulfate Matching names: W 3207B; W-3207B ChEBI record	Not supplied	C10H15N3.H2O4S275.33 g/mol	2-starThird-party annotation
W 3399Source synonym · CHEBI:750911 Names & database links Source preferred name: quingestrone Matching names: W 3399; W-3399 ChEBI record	Not supplied	C26H38O2382.588 g/mol	2-starThird-party annotation
W 3580BSource synonym · CHEBI:751717 Names & database links Source preferred name: ampyzine sulfate Matching names: W 3580B; W-3580B ChEBI record	Not supplied	C6H9N3.H2O4S221.238 g/mol	2-starThird-party annotation
W 3623Source synonym · CHEBI:750665 Names & database links Source preferred name: cyprazepam Matching names: W 3623; W-3623 ChEBI record	Not supplied	C19H18ClN3O339.826 g/mol	2-starThird-party annotation
W 3676Source synonym · CHEBI:750248 Names & database links Source preferred name: sulazepam Matching names: W 3676; W-3676 ChEBI record	Not supplied	C16H13ClN2S300.814 g/mol	2-starThird-party annotation
W 3699Source synonym · CHEBI:135262 Names & database links Source preferred name: piprozolin Matching names: W 3699; W 3699GO 919; W-3699 ChEBI record · PubChem search · CAS lookup	17243-64-0	C14H22N2O3S298.408 g/mol	2-starThird-party annotation
W 37Source synonym · CHEBI:3209 Names & database links Source preferred name: buformin Matching names: W 37 ChEBI record · PubChem search · CAS lookup	692-13-7	C6H15N5157.221 g/mol	3-starChEBI team
W 3746Source synonym · CHEBI:229820 Names & database links Source preferred name: cetofenicol Matching names: W 3746; W-3746 ChEBI record	Not supplied	C13H15Cl2NO4320.172 g/mol	2-starThird-party annotation
W 3976BSource synonym · CHEBI:752772 Names & database links Source preferred name: triampyzine sulfate Matching names: W 3976B; W-3976B ChEBI record	Not supplied	C9H15N3.H2O4S263.319 g/mol	2-starThird-party annotation
W 4020Source synonym · CHEBI:8362 Names & database links Source preferred name: Prazepam Matching names: W 4020; W-4020 ChEBI record · PubChem search · CAS lookup	2955-38-6	C19H17ClN2O324.811 g/mol	2-starThird-party annotation
W 4189Source synonym · CHEBI:3652 Names & database links Source preferred name: chlorsulfuron Matching names: W 4189 ChEBI record · PubChem search · CAS lookup	64902-72-3	C12H12ClN5O4S357.779 g/mol	3-starChEBI team
W 42782Source synonym · CHEBI:751176 Names & database links Source preferred name: iproxamine hydrochloride Matching names: W 42782; W-42782 ChEBI record	Not supplied	HCl.C18H29NO4359.894 g/mol	2-starThird-party annotation
W 4540Source synonym · CHEBI:135661 Names & database links Source preferred name: quingestanol acetate Matching names: W 4540; W-4540 ChEBI record · PubChem search · CAS lookup	3000-39-3	C27H36O3408.582 g/mol	2-starThird-party annotation
W 4600Source synonym · CHEBI:755909 Names & database links Source preferred name: algeldrate Matching names: W 4600; W-4600 ChEBI record	Not supplied	H3AlO3.H2O96.018 g/mol	2-starThird-party annotation
W 4744Source synonym · CHEBI:135113 Names & database links Source preferred name: mecloqualone Matching names: W 4744; W-4744 ChEBI record · PubChem search · CAS lookup	340-57-8	C15H11ClN2O270.719 g/mol	2-starThird-party annotation
W 4869Source synonym · CHEBI:135723 Names & database links Source preferred name: prednival Matching names: W 4869; W-4869 ChEBI record · PubChem search · CAS lookup	15180-00-4	C26H36O6444.568 g/mol	2-starThird-party annotation
W 5733Source synonym · CHEBI:751752 Names & database links Source preferred name: atolide Matching names: W 5733; W-5733 ChEBI record	Not supplied	C18H23N3O297.402 g/mol	2-starThird-party annotation
W 5975Source synonym · CHEBI:135798 Names & database links Source preferred name: betamethasone benzoate Matching names: W 5975; W-5975 ChEBI record · PubChem search · CAS lookup	22298-29-9	C29H33FO6496.575 g/mol	2-starThird-party annotation
W 6309Source synonym · CHEBI:31485 Names & database links Source preferred name: Difluprednate Matching names: W 6309; W-6309 ChEBI record · PubChem search · CAS lookup	23674-86-4	C27H34F2O7508.558 g/mol	2-starThird-party annotation
W 6439ASource synonym · CHEBI:752504 Names & database links Source preferred name: suloxifen oxalate Matching names: W 6439A; W-6439A ChEBI record	Not supplied	C2H2O4.C18H24N2OS406.504 g/mol	2-starThird-party annotation
W 6495Source synonym · CHEBI:752102 Names & database links Source preferred name: oxisuran Matching names: W 6495; W-6495 ChEBI record	Not supplied	C8H9NO2S183.232 g/mol	2-starThird-party annotation
W 713Source synonym · CHEBI:135133 Names & database links Source preferred name: tybamate Matching names: W 713; W-713 ChEBI record · PubChem search · CAS lookup	4268-36-4	C13H26N2O4274.361 g/mol	2-starThird-party annotation
W 8495Source synonym · CHEBI:76163 Names & database links Source preferred name: isoxicam Matching names: W 8495 ChEBI record · PubChem search · CAS lookup	34552-84-6	C14H13N3O5S335.341 g/mol	3-starChEBI team
W(4+)Source synonym · CHEBI:30517 Names & database links Source preferred name: tungsten(4+) Matching names: W(4+) ChEBI record	Not supplied	W183.84 g/mol	3-starChEBI team
W(5+)Source synonym · CHEBI:30516 Names & database links Source preferred name: tungsten(5+) Matching names: W(5+) ChEBI record	Not supplied	W183.84 g/mol	3-starChEBI team
W(6+)Source synonym · CHEBI:49955 Names & database links Source preferred name: tungsten(6+) Matching names: W(6+) ChEBI record · PubChem search · CAS lookup	22541-27-1	W183.84 g/mol	3-starChEBI team
[W(CN)8](3-)Source synonym · CHEBI:30523 Names & database links Source preferred name: octacyanotungstate(3-) Matching names: [W(CN)8](3-) ChEBI record	Not supplied	C8N8W391.984 g/mol	3-starChEBI team
[W(CN)8](4-)Source synonym · CHEBI:30524 Names & database links Source preferred name: octacyanotungstate(4-) Matching names: [W(CN)8](4-) ChEBI record	Not supplied	C8N8W391.984 g/mol	3-starChEBI team
W(Dtpp-mP)2MgSource synonym · CHEBI:30402 Names & database links Source preferred name: bis(molybdopterin)tungsten cofactor Matching names: W(Dtpp-mP)2Mg; W-molybdopterin cofactor ChEBI record	Not supplied	C20H20MgN10O12P2S4W990.799 g/mol	3-starChEBI team
W(VI)O2(OH)-molybdopterin cofactorPreferred name · CHEBI:71307 Names & database links Source preferred name: W(VI)O2(OH)-molybdopterin cofactor Matching names: W(VI)O2(OH)-molybdopterin cofactor; WO2(OH)-molybdopterin cofactor ChEBI record	Not supplied	C10H13N5O9PS2W626.188 g/mol	3-starChEBI team
W(VI)O2(OH)-molybdopterin cofactor(4-)Preferred name · CHEBI:71305 Names & database links Source preferred name: W(VI)O2(OH)-molybdopterin cofactor(4-) Matching names: W(VI)O2(OH)-molybdopterin cofactor(4-); W-molybdopterin cofactor; WO2(OH)-molybdopterin cofactor(4-) ChEBI record	Not supplied	C10H10N5O9PS2W623.164 g/mol	3-starChEBI team
W-1372Source synonym · CHEBI:177588 Names & database links Source preferred name: beloxamide Matching names: W-1372 ChEBI record · PubChem search · CAS lookup	15256-58-3	C18H21NO2283.371 g/mol	2-starThird-party annotation
W-1760Source synonym · CHEBI:134976 Names & database links Source preferred name: xenbucin Matching names: W-1760 ChEBI record · PubChem search · CAS lookup	959-10-4	C16H16O2240.302 g/mol	2-starThird-party annotation
W-19053Source synonym · CHEBI:4905 Names & database links Source preferred name: Etidocaine hydrochloride Matching names: W-19053 ChEBI record · PubChem search · CAS lookup	36637-19-1	C17H28N2O.HCl312.885 g/mol	2-starThird-party annotation
W-2964Source synonym · CHEBI:94646 Names & database links Source preferred name: N-[2-amino-6-[(4-fluorophenyl)methylamino]-3-pyridinyl]carbamic acid ethyl ester Matching names: W-2964 ChEBI record · PubChem search · CAS lookup	56995-20-1	C15H17FN4O2304.325 g/mol	2-starThird-party annotation
W-2964MSource synonym · CHEBI:749720 Names & database links Source preferred name: flupirtine maleate Matching names: W-2964M ChEBI record	Not supplied	C4H4O4.C15H17FN4O2420.397 g/mol	2-starThird-party annotation
W-3100MSource synonym · CHEBI:135173 Names & database links Source preferred name: taurolidine Matching names: W-3100M ChEBI record · PubChem search · CAS lookup	19388-87-5	C7H16N4O4S2284.363 g/mol	3-starChEBI team
W-583Source synonym · CHEBI:31804 Names & database links Source preferred name: Mebutamate Matching names: W-583 ChEBI record · PubChem search · CAS lookup	64-55-1	C10H20N2O4232.28 g/mol	2-starThird-party annotation
W-5845Source synonym · CHEBI:755891 Names & database links Source preferred name: bemcentinib Matching names: W-5845 ChEBI record	Not supplied	C30H34N8506.658 g/mol	2-starThird-party annotation
W-bis(molybdopterin guanine dinucleotide)Source synonym · CHEBI:60537 Names & database links Source preferred name: oxotungsten-bis(molybdopterin guanine dinucleotide)(4-) Matching names: W-bis(molybdopterin guanine dinucleotide) ChEBI record	Not supplied	C40H44N20O27P4S4W1672.909 g/mol	3-starChEBI team
W-Cycloheptyl-a-hydroxytridecanoic acidPreferred name · CHEBI:221320 Names & database links Source preferred name: W-Cycloheptyl-a-hydroxytridecanoic acid Matching names: W-Cycloheptyl-a-hydroxytridecanoic acid ChEBI record	Not supplied	C20H38O3326.521 g/mol	2-starThird-party annotation
W-Cycloheptyl-a-hydroxyundecanoic acidPreferred name · CHEBI:210179 Names & database links Source preferred name: W-Cycloheptyl-a-hydroxyundecanoic acid Matching names: W-Cycloheptyl-a-hydroxyundecanoic acid ChEBI record	Not supplied	C18H34O3298.467 g/mol	2-starThird-party annotation
W-Cycloheptyl-decanoic acidPreferred name · CHEBI:202247 Names & database links Source preferred name: W-Cycloheptyl-decanoic acid Matching names: W-Cycloheptyl-decanoic acid ChEBI record	Not supplied	C17H32O2268.441 g/mol	2-starThird-party annotation
W-Cycloheptylnonanoic acidPreferred name · CHEBI:216908 Names & database links Source preferred name: W-Cycloheptylnonanoic acid Matching names: W-Cycloheptylnonanoic acid ChEBI record	Not supplied	C16H30O2254.414 g/mol	2-starThird-party annotation
W-Cycloheptyltridecanoic acidPreferred name · CHEBI:200023 Names & database links Source preferred name: W-Cycloheptyltridecanoic acid Matching names: W-Cycloheptyltridecanoic acid ChEBI record	Not supplied	C20H38O2310.522 g/mol	2-starThird-party annotation
W-Hydroxyxanthorin 1-O-methyl ester 8-O-Preferred name · CHEBI:202214 Names & database links Source preferred name: W-Hydroxyxanthorin 1-O-methyl ester 8-O- Matching names: W-Hydroxyxanthorin 1-O-methyl ester 8-O- ChEBI record	Not supplied	C23H24O12492.433 g/mol	2-starThird-party annotation
w-O-beta-D-GlucopyranosylaloeemodinPreferred name · CHEBI:176082 Names & database links Source preferred name: w-O-beta-D-Glucopyranosylaloeemodin Matching names: w-O-beta-D-Glucopyranosylaloeemodin ChEBI record	Not supplied	C21H20O10432.381 g/mol	2-starThird-party annotation
W0027Source synonym · CHEBI:748255 Names & database links Source preferred name: albaconazole Matching names: W-0027; W0027 ChEBI record	Not supplied	C20H16ClF2N5O2431.83 g/mol	2-starThird-party annotation
W1278-APreferred name · CHEBI:221468 Names & database links Source preferred name: W1278-A Matching names: W1278-A ChEBI record	Not supplied	C38H38O16750.706 g/mol	2-starThird-party annotation
W1278-BPreferred name · CHEBI:209935 Names & database links Source preferred name: W1278-B Matching names: W1278-B ChEBI record	Not supplied	C48H48O20944.892 g/mol	2-starThird-party annotation
W1278-CPreferred name · CHEBI:213497 Names & database links Source preferred name: W1278-C Matching names: W1278-C ChEBI record	Not supplied	C58H58O241139.078 g/mol	2-starThird-party annotation
W13Source synonym · CHEBI:75366 Names & database links Source preferred name: N-(4-aminobutyl)-5-chloronaphthalene-2-sulfonamide Matching names: W-13; W13 ChEBI record · PubChem search · CAS lookup	81705-04-6	C14H17ClN2O2S312.822 g/mol	3-starChEBI team
[W18O54(PO4)2](6-)Source synonym · CHEBI:33481 Names & database links Source preferred name: diphosphooctadecatungstate(6-) Matching names: [W18O54(PO4)2](6-) ChEBI record	Not supplied	2O4P.O54W184363.006 g/mol	3-starChEBI team
W23-1006Preferred name · CHEBI:747372 Names & database links Source preferred name: W23-1006 Matching names: W23-1006 ChEBI record · PubChem search · CAS lookup	3035498-92-8	C17H12BrN3O5418.203 g/mol	2-starThird-party annotation
W3O9Source synonym · CHEBI:37791 Names & database links Source preferred name: nonaoxidotritungsten Matching names: (WO3)3; [W3O6(mu-O)3]; [W3O9]; W3O9 ChEBI record · PubChem search · CAS lookup	12165-37-6	O9W3695.511 g/mol	3-starChEBI team
[W3O9](-)Source synonym · CHEBI:37795 Names & database links Source preferred name: cyclo-nonaoxidotritungstate(1-) Matching names: [W3O6(mu-O)3](-); [W3O9](-) ChEBI record	Not supplied	O9W3695.511 g/mol	3-starChEBI team
[W3O9](2-)Source synonym · CHEBI:37792 Names & database links Source preferred name: cyclo-nonaoxidotritungstate(2-) Matching names: [W3O6(mu-O)3](2-); [W3O9](2-) ChEBI record	Not supplied	O9W3695.511 g/mol	3-starChEBI team
W493 APreferred name · CHEBI:219973 Names & database links Source preferred name: W493 A Matching names: W493 A ChEBI record	Not supplied	C44H71N7O11874.09 g/mol	2-starThird-party annotation
W493 BPreferred name · CHEBI:219978 Names & database links Source preferred name: W493 B Matching names: W493 B ChEBI record	Not supplied	C45H73N7O11888.117 g/mol	2-starThird-party annotation
W493 CPreferred name · CHEBI:212960 Names & database links Source preferred name: W493 C Matching names: W493 C ChEBI record	Not supplied	C43H69N7O11860.063 g/mol	2-starThird-party annotation
W493 DPreferred name · CHEBI:212966 Names & database links Source preferred name: W493 D Matching names: W493 D ChEBI record	Not supplied	C45H71N7O11886.101 g/mol	2-starThird-party annotation
W54011Preferred name · CHEBI:197423 Names & database links Source preferred name: W54011 Matching names: W54011; W 54011; W-54011 ChEBI record · PubChem search · CAS lookup	405098-33-1	C30H36N2O2.HCl493.091 g/mol	2-starThird-party annotation
32:5(w6)Source synonym · CHEBI:83424 Names & database links Source preferred name: (14Z,17Z,20Z,23Z,26Z)-dotriacontapentaenoic acid Matching names: 32:5(w6) ChEBI record	Not supplied	C32H54O2470.782 g/mol	3-starChEBI team
34:5(w6)Source synonym · CHEBI:87608 Names & database links Source preferred name: (16Z,19Z,22Z,25Z,28Z)-tetratriacontapentaenoic acid Matching names: 34:5(w6) ChEBI record	Not supplied	C34H58O2498.836 g/mol	3-starChEBI team
36:5(w6)Source synonym · CHEBI:87612 Names & database links Source preferred name: (18Z,21Z,24Z,27Z,30Z)-hexatriacontapentaenoic acid Matching names: 36:5(w6) ChEBI record	Not supplied	C36H62O2526.89 g/mol	3-starChEBI team
W7783Source synonym · CHEBI:220039 Names & database links Source preferred name: Ambruticin Matching names: W-7783; W7783 ChEBI record	Not supplied	C28H42O6474.638 g/mol	2-starThird-party annotation
1263W94Source synonym · CHEBI:749006 Names & database links Source preferred name: maribavir Matching names: 1263-W-94; 1263W94 ChEBI record	Not supplied	C15H19Cl2N3O4376.24 g/mol	2-starThird-party annotation
WASource synonym · CHEBI:73710 Names & database links Source preferred name: Trp-Ala Matching names: W-A; WA ChEBI record	Not supplied	C14H17N3O3275.308 g/mol	3-starChEBI team
WA-335Source synonym · CHEBI:748672 Names & database links Source preferred name: danitracen Matching names: W-A 335; W-A-335; WA-335 ChEBI record	Not supplied	C20H21NO291.394 g/mol	2-starThird-party annotation
WA8242 A2Preferred name · CHEBI:225621 Names & database links Source preferred name: WA8242 A2 Matching names: WA8242 A2 ChEBI record	Not supplied	C39H74N2O7683.028 g/mol	2-starThird-party annotation
WA8242 BPreferred name · CHEBI:223771 Names & database links Source preferred name: WA8242 B Matching names: WA8242 B ChEBI record	Not supplied	C40H76N2O7697.055 g/mol	2-starThird-party annotation
WA8242A1Preferred name · CHEBI:202420 Names & database links Source preferred name: WA8242A1 Matching names: WA8242A1 ChEBI record	Not supplied	C39H74N2O7683.028 g/mol	2-starThird-party annotation
WachstumshormonSource synonym · CHEBI:37845 Names & database links Source preferred name: growth hormone Matching names: Wachstumshormon ChEBI record · PubChem search · CAS lookup	9002-72-6	Not suppliedMass not supplied	3-starChEBI team
WADSource synonym · CHEBI:73671 Names & database links Source preferred name: Trp-Ala-Asp Matching names: W-A-D; WAD ChEBI record	Not supplied	C18H22N4O6390.396 g/mol	3-starChEBI team
WAGSource synonym · CHEBI:73691 Names & database links Source preferred name: Trp-Ala-Gly Matching names: W-A-G; WAG ChEBI record	Not supplied	C16H20N4O4332.36 g/mol	3-starChEBI team
Waikialide APreferred name · CHEBI:205008 Names & database links Source preferred name: Waikialide A Matching names: Waikialide A ChEBI record	Not supplied	C14H20O2220.312 g/mol	2-starThird-party annotation
Waikialide BPreferred name · CHEBI:214733 Names & database links Source preferred name: Waikialide B Matching names: Waikialide B ChEBI record	Not supplied	C14H22O2222.328 g/mol	2-starThird-party annotation
Waikialoid APreferred name · CHEBI:207238 Names & database links Source preferred name: Waikialoid A Matching names: Waikialoid A ChEBI record	Not supplied	C52H54N6O7875.039 g/mol	2-starThird-party annotation
Waikialoid BPreferred name · CHEBI:199442 Names & database links Source preferred name: Waikialoid B Matching names: Waikialoid B ChEBI record	Not supplied	C52H54N6O9907.037 g/mol	2-starThird-party annotation
Waikikiamide APreferred name · CHEBI:217548 Names & database links Source preferred name: Waikikiamide A Matching names: Waikikiamide A ChEBI record	Not supplied	C41H39N3O9717.775 g/mol	2-starThird-party annotation
Waikikiamide BPreferred name · CHEBI:217554 Names & database links Source preferred name: Waikikiamide B Matching names: Waikikiamide B ChEBI record	Not supplied	C41H39N3O8701.776 g/mol	2-starThird-party annotation
Waikikiamide CPreferred name · CHEBI:217560 Names & database links Source preferred name: Waikikiamide C Matching names: Waikikiamide C ChEBI record	Not supplied	C54H62N6O11971.121 g/mol	2-starThird-party annotation
Wailupemycin APreferred name · CHEBI:223143 Names & database links Source preferred name: Wailupemycin A Matching names: Wailupemycin A ChEBI record	Not supplied	C21H22O8402.399 g/mol	2-starThird-party annotation
Wailupemycin BPreferred name · CHEBI:217627 Names & database links Source preferred name: Wailupemycin B Matching names: Wailupemycin B ChEBI record	Not supplied	C21H20O7384.384 g/mol	2-starThird-party annotation

About this W chemical list

What does “starting with W” mean?

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