Molecular formula
C21H17N3O3S
162 compounds have this formula on CompoundList.
- Molar mass
- 391.45g/mol
- Monoisotopic mass
- 391.0991Da
- Atoms
- 45
- Elements
- 5
- Rings plus double bonds
- 15
The formula C21H17N3O3S describes a molecule made of 21 carbon atoms, 17 hydrogen atoms, 3 nitrogen atoms, 3 oxygen atoms and 1 sulfur atom. It is written in Hill notation: carbon first, then hydrogen, then the other elements in alphabetical order. The formula tells you which atoms are present, not how they are connected, which is why several different chemicals can share it.
Elemental composition
- C Carbon × 2164.44%12.011 × 21 = 252.231 g/mol
- H Hydrogen × 174.38%1.008 × 17 = 17.136 g/mol
- N Nitrogen × 310.73%14.007 × 3 = 42.021 g/mol
- O Oxygen × 312.26%15.999 × 3 = 47.997 g/mol
- S Sulfur × 18.19%32.06 × 1 = 32.060 g/mol
Look up another formula
Compounds with the formula C21H17N3O3S
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 101 to 162 of 162 compounds
![N-[4-(6-Methoxypyridazin-3-yl)phenyl]naphthalene-2-sulfonamide chemical structure, C21H17N3O3S, CAS 941995-77-3](/s/FYJSPADPGWNAFS-UHFFFAOYSA-N.svg)
N-[4-(6-Methoxypyridazin-3-yl)phenyl]naphthalene-2-sulfonamide
CAS 941995-77-3C21H17N3O3S
![N-[3-(1-Methyl-6-oxo-1,6-dihydropyridazin-3-yl)phenyl]naphthalene-2-sulfonamide chemical structure, C21H17N3O3S, CAS 941979-43-7](/s/IBTDEQKYKFZVSB-UHFFFAOYSA-N.svg)
N-[3-(1-Methyl-6-oxo-1,6-dihydropyridazin-3-yl)phenyl]naphthalene-2-sulfonamide
CAS 941979-43-7C21H17N3O3S
N-(4-(1-Methyl-6-oxo-1,6-dihydropyridazin-3-yl)phenyl)naphthalene-2-sulfonamide
CAS 941888-46-6C21H17N3O3S
![N-(2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)-6-(p-tolyl)imidazo[2,1-b]thiazole-3-carboxamide chemical structure, C21H17N3O3S, CAS 1049370-93-5](/s/HPLVHEJCNLYONC-UHFFFAOYSA-N.svg)
N-(2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)-6-(p-tolyl)imidazo[2,1-b]thiazole-3-carboxamide
CAS 1049370-93-5C21H17N3O3S
N-(4-(Methoxymethyl)-2-oxo-1,2-dihydroquinolin-7-yl)-2-phenylthiazole-4-carboxamide
CAS 1251687-12-3C21H17N3O3S
5-Amino-1-(2,3-dihydro-1,4-benzodioxin-6-yl)-4-(4-phenyl-1,3-thiazol-2-yl)-1,2-dihydro-3H-pyrrol-3-one
CAS 929862-34-0C21H17N3O3S
![Methyl 4-[5-amino-3-oxo-4-(4-phenyl-1,3-thiazol-2-yl)-2,3-dihydro-1H-pyrrol-1-yl]benzoate chemical structure, C21H17N3O3S, CAS 951986-80-4](/s/NOFUBADTPXSPJU-UHFFFAOYSA-N.svg)
Methyl 4-[5-amino-3-oxo-4-(4-phenyl-1,3-thiazol-2-yl)-2,3-dihydro-1H-pyrrol-1-yl]benzoate
CAS 951986-80-4C21H17N3O3S
![N-[[2-(3,4-Dimethylphenyl)-1,3-benzoxazol-5-yl]carbamothioyl]furan-2-carboxamide chemical structure, C21H17N3O3S, CAS 532945-35-0](/s/QEOJHDZRKGXNMN-UHFFFAOYSA-N.svg)
N-[[2-(3,4-Dimethylphenyl)-1,3-benzoxazol-5-yl]carbamothioyl]furan-2-carboxamide
CAS 532945-35-0C21H17N3O3S
![(7Z)-3-(1,3-Benzodioxol-5-yl)-7-[(E)-3-phenylprop-2-enylidene]-2,4-dihydro-[1,3]thiazolo[3,2-a][1,3,5]triazin-6-one chemical structure, C21H17N3O3S, CAS 690692-01-4](/s/WGZXBRBSZQOQKI-LLLGHMJXSA-N.svg)
(7Z)-3-(1,3-Benzodioxol-5-yl)-7-[(E)-3-phenylprop-2-enylidene]-2,4-dihydro-[1,3]thiazolo[3,2-a][1,3,5]triazin-6-one
CAS 690692-01-4C21H17N3O3S
![3,5-Dimethoxy-N-(4-(thiazolo[5,4-b]pyridin-2-yl)phenyl)benzamide chemical structure, C21H17N3O3S, CAS 863588-46-9](/s/VRPLKCXORJWUMT-UHFFFAOYSA-N.svg)
3,5-Dimethoxy-N-(4-(thiazolo[5,4-b]pyridin-2-yl)phenyl)benzamide
CAS 863588-46-9C21H17N3O3S
![3,4-Dimethoxy-N-(4-{[1,3]thiazolo[5,4-b]pyridin-2-yl}phenyl)benzamide chemical structure, C21H17N3O3S, CAS 863588-74-3](/s/NUAFNANVACVZKH-UHFFFAOYSA-N.svg)
3,4-Dimethoxy-N-(4-{[1,3]thiazolo[5,4-b]pyridin-2-yl}phenyl)benzamide
CAS 863588-74-3C21H17N3O3S
![(Z)-Ethyl 3-allyl-2-((4-cyanobenzoyl)imino)-2,3-dihydrobenzo[d]thiazole-6-carboxylate chemical structure, C21H17N3O3S, CAS 865174-62-5](/s/VRLOHNHVMAURPB-UHFFFAOYSA-N.svg)
(Z)-Ethyl 3-allyl-2-((4-cyanobenzoyl)imino)-2,3-dihydrobenzo[d]thiazole-6-carboxylate
CAS 865174-62-5C21H17N3O3S
![3,4-Dimethoxy-N-(3-{[1,3]thiazolo[5,4-B]pyridin-2-YL}phenyl)benzamide chemical structure, C21H17N3O3S, CAS 863589-45-1](/s/FNTHUPZWRKZRDI-UHFFFAOYSA-N.svg)
3,4-Dimethoxy-N-(3-{[1,3]thiazolo[5,4-B]pyridin-2-YL}phenyl)benzamide
CAS 863589-45-1C21H17N3O3S
Naphthalen-2-yl(2-((4-nitrobenzyl)thio)-4,5-dihydro-1H-imidazol-1-yl)methanone
CAS 851802-43-2C21H17N3O3S
![(5Z)-5-(2,3-Dimethoxybenzylidene)-2-[(E)-2-phenylethenyl][1,3]thiazolo[3,2-b][1,2,4]triazol-6(5H)-one chemical structure, C21H17N3O3S, CAS 843670-33-7](/s/RVWHDMPIEUDXSL-VBEVGYOXSA-N.svg)
(5Z)-5-(2,3-Dimethoxybenzylidene)-2-[(E)-2-phenylethenyl][1,3]thiazolo[3,2-b][1,2,4]triazol-6(5H)-one
CAS 843670-33-7C21H17N3O3S
![(5Z)-5-(2,4-Dimethoxybenzylidene)-2-[(E)-2-phenylethenyl][1,3]thiazolo[3,2-b][1,2,4]triazol-6(5H)-one chemical structure, C21H17N3O3S, CAS 845652-67-7](/s/LKEJREBINGESJW-SAYABCIWSA-N.svg)
(5Z)-5-(2,4-Dimethoxybenzylidene)-2-[(E)-2-phenylethenyl][1,3]thiazolo[3,2-b][1,2,4]triazol-6(5H)-one
CAS 845652-67-7C21H17N3O3S
![2,6-Dimethoxy-N-(4-(thiazolo[5,4-b]pyridin-2-yl)phenyl)benzamide chemical structure, C21H17N3O3S, CAS 863588-53-8](/s/CVVMPQQEIMFLAE-UHFFFAOYSA-N.svg)
2,6-Dimethoxy-N-(4-(thiazolo[5,4-b]pyridin-2-yl)phenyl)benzamide
CAS 863588-53-8C21H17N3O3S
![2-(Benzenesulfonyl)-N-[2-(1H-benzimidazol-2-yl)phenyl]acetamide chemical structure, C21H17N3O3S, CAS 898427-64-0](/s/VPHBRNHHGGXYBC-UHFFFAOYSA-N.svg)
2-(Benzenesulfonyl)-N-[2-(1H-benzimidazol-2-yl)phenyl]acetamide
CAS 898427-64-0C21H17N3O3S
![N-[2-(4-Methoxyphenyl)-4,6-dihydrothieno[3,4-c]pyrazol-3-yl]-1-benzofuran-2-carboxamide chemical structure, C21H17N3O3S, CAS 893942-07-9](/s/UHWPRDXXRLKGNH-UHFFFAOYSA-N.svg)
N-[2-(4-Methoxyphenyl)-4,6-dihydrothieno[3,4-c]pyrazol-3-yl]-1-benzofuran-2-carboxamide
CAS 893942-07-9C21H17N3O3S
![N-(Benzo[d][1,3]dioxol-5-ylmethyl)-2-(6-phenylimidazo[2,1-b]thiazol-3-yl)acetamide chemical structure, C21H17N3O3S, CAS 897459-08-4](/s/TWVUQJDFQZZTGI-UHFFFAOYSA-N.svg)
N-(Benzo[d][1,3]dioxol-5-ylmethyl)-2-(6-phenylimidazo[2,1-b]thiazol-3-yl)acetamide
CAS 897459-08-4C21H17N3O3S
![Methyl 2-(1-naphthamido)-3-cyano-4,5-dihydrothieno[2,3-c]pyridine-6(7H)-carboxylate chemical structure, C21H17N3O3S, CAS 886956-35-0](/s/APJVEYPPEBTXBA-UHFFFAOYSA-N.svg)
Methyl 2-(1-naphthamido)-3-cyano-4,5-dihydrothieno[2,3-c]pyridine-6(7H)-carboxylate
CAS 886956-35-0C21H17N3O3S
![N-Benzyl-2-(4-(2,4-dioxo-1,2-dihydrothieno[3,2-d]pyrimidin-3(4H)-yl)phenyl)acetamide chemical structure, C21H17N3O3S, CAS 702664-27-5](/s/GFNIGVWZMSJNSQ-UHFFFAOYSA-N.svg)
N-Benzyl-2-(4-(2,4-dioxo-1,2-dihydrothieno[3,2-d]pyrimidin-3(4H)-yl)phenyl)acetamide
CAS 702664-27-5C21H17N3O3S
![N-[2-(1H-1,3-Benzodiazol-2-yl)phenyl]-3-methanesulfonylbenzamide chemical structure, C21H17N3O3S, CAS 896288-22-5](/s/HXFBGXXDBAPDSB-UHFFFAOYSA-N.svg)
N-[2-(1H-1,3-Benzodiazol-2-yl)phenyl]-3-methanesulfonylbenzamide
CAS 896288-22-5C21H17N3O3S
![Methyl 4-((2-methyl-4-oxo-7-phenylthiazolo[4,5-d]pyridazin-5(4H)-yl)methyl)benzoate chemical structure, C21H17N3O3S, CAS 941942-54-7](/s/JNCUMFZLYJHCKO-UHFFFAOYSA-N.svg)
Methyl 4-((2-methyl-4-oxo-7-phenylthiazolo[4,5-d]pyridazin-5(4H)-yl)methyl)benzoate
CAS 941942-54-7C21H17N3O3S
- 2-(3-(Phenylsulfonyl)-1H-indol-1-yl)-N-(pyridin-3-yl)acetamide941925-17-3C21H17N3O3S
- (Z)-2-(4-(3,4-Dimethylphenyl)thiazol-2-yl)-3-(4-methoxy-3-nitrophenyl)acrylonitrile476673-62-8C21H17N3O3S
- N-(Benzo[d]thiazol-2-yl)-1-((3-methylbenzyl)oxy)-2-oxo-1,2-dihydropyridine-3-carboxamide852366-12-2C21H17N3O3S
- N-(4-(2,3-Dihydroimidazo[2,1-b]thiazol-6-yl)phenyl)-7-methoxybenzofuran-2-carboxamide1210186-66-5C21H17N3O3S
- (3-((4-Methylbenzo[d]thiazol-2-yl)oxy)azetidin-1-yl)(5-phenylisoxazol-3-yl)methanone1421531-31-8C21H17N3O3S
- 2-Methoxy-N-(2-((3-(thiophen-2-yl)-1,2,4-oxadiazol-5-yl)methyl)phenyl)benzamide1797076-88-0C21H17N3O3S
- 3-[(4-Imino-5,6,7,8-tetrahydro[1]benzothieno[2,3-d]pyrimidin-3(4H)-yl)acetyl]-2H-chromen-2-one1989757-98-3C21H17N3O3S
- 5-(Naphthalene-1-sulfonyl)-1,5,9-triazatricyclo[8.4.0.0^{3,8}]tetradeca-3(8),9,11,13-tetraen-2-one2034413-44-8C21H17N3O3S
- N-{[2-(Furan-2-yl)pyridin-4-yl]methyl}-1-methyl-6-oxo-4-(thiophen-3-yl)-1,6-dihydropyridine-3-carboxamide2034439-62-6C21H17N3O3S
- (E)-3-(Benzo[d][1,3]dioxol-5-yl)-N-(2-(2,3-dihydroimidazo[2,1-b]thiazol-6-yl)phenyl)acrylamide2034892-13-0C21H17N3O3S
- 3-Phenyl-5-[3-(1,3-thiazol-2-yloxy)pyrrolidine-1-carbonyl]-2,1-benzoxazole2201703-44-6C21H17N3O3S
- N1-(2-cyanophenyl)-N2-(2-hydroxy-2-(4-(thiophen-3-yl)phenyl)ethyl)oxalamide2034254-33-4C21H17N3O3S
- (2Z)-2-[(2,3-Dimethylphenyl)imino]-7-hydroxy-N-(1,3-thiazol-2-yl)-2H-chromene-3-carboxamide478481-94-6C21H17N3O3S
- 1-(1,3-Benzodioxol-5-ylmethyl)-5-imino-4-(4-phenyl-1,3-thiazol-2-yl)-2,5-dihydro-1H-pyrrol-3-ol951940-58-2C21H17N3O3S
- N-Benzhydryl-7-hydroxy-3-methyl-5-oxo-5H-thiazolo[3,2-a]pyrimidine-6-carboxamide898431-72-6C21H17N3O3S
- Methanesulfonamide, N-(4-((1-formyl-9-acridinyl)amino)phenyl)-94129-64-3C21H17N3O3S
- N-[(2-Methyl-5-nitrophenyl)carbamothioyl]-4-phenylbenzamide642941-99-9C21H17N3O3S
- (5Z)-2-(2-Methoxyphenyl)-5-[2-(prop-2-en-1-yloxy)benzylidene][1,3]thiazolo[3,2-b][1,2,4]triazol-6(5H)-one618854-04-9C21H17N3O3S
- 3-[4-(Benzyloxy)-3-methoxyphenyl]-2-cyano-N-(1,3-thiazol-2-yl)prop-2-enamide730943-36-9C21H17N3O3S
- 3-[3-(Benzyloxy)-4-methoxyphenyl]-2-cyano-N-(1,3-thiazol-2-yl)prop-2-enamide730943-37-0C21H17N3O3S
- Benzenesulfonic acid, (1,2-dihydro-2-oxo-1-(phenylmethyl)-3H-indol-3-ylidene)hydrazide99448-85-8C21H17N3O3S
- 2,6-Dimethoxy-N-[5-(1-naphthalenyl)-1,3,4-thiadiazol-2-yl]benzamide64405-81-8C21H17N3O3S
- 2-Amino-N-(3-methoxyphenyl)-3-(thiophene-2-carbonyl)indolizine-1-carboxamide912901-79-2C21H17N3O3S
- (Z)-2-(4-(4-Ethylphenyl)thiazol-2-yl)-3-(4-methoxy-3-nitrophenyl)acrylonitrile476673-63-9C21H17N3O3S
- 2-Amino-N-(2-methoxyphenyl)-3-(thiophene-2-carbonyl)indolizine-1-carboxamide898433-90-4C21H17N3O3S
- 3-(3-Methoxyphenyl)-4-oxo-N-(thiophen-2-ylmethyl)-3,4-dihydroquinazoline-7-carboxamide1144427-21-3C21H17N3O3S
- 3-(2-Methoxyphenyl)-4-oxo-N-(thiophen-2-ylmethyl)-3,4-dihydroquinazoline-7-carboxamide1144465-12-2C21H17N3O3S
- Phenothiazine, 10-(((2,4-dihydroxybenzylidene)hydrazono)acetyl)-54012-82-7C21H17N3O3S
- N-(6-Acetamido-1,3-benzothiazol-2-yl)-2-[(naphthalen-1-yl)oxy]acetamide5327-85-5C21H17N3O3S
- Methyl 5-methyl-4-(2-phenoxyanilino)thieno[2,3-d]pyrimidine-6-carboxylate1215639-70-5C21H17N3O3S
- N-(2-Cyanophenyl)-N'-{2-hydroxy-2-[4-(thiophen-2-yl)phenyl]ethyl}ethanediamide2380183-41-3C21H17N3O3S
- 1-([1,1'-Biphenyl]-4-ylsulfonyl)-3-(4-methoxyphenyl)-1H-1,2,4-triazole2429963-83-5C21H17N3O3S
- 4-Amino-5-(benzofuran-2-carbonyl)-2-(p-tolylamino)thiophene-3-carboxamide852933-00-7C21H17N3O3S
- (4E)-4-[(2,5-Dimethylphenyl)-hydroxymethylidene]-5-pyridin-4-yl-1-(1,3-thiazol-2-yl)pyrrolidine-2,3-dione608090-82-0C21H17N3O3S
- Benzamide, N-[6-methyl-1-(phenylsulfonyl)-1H-pyrrolo[2,3-b]pyridin-4-yl]-1027065-24-2C21H17N3O3S
- N-{4-[(Acridin-9-yl)amino]phenyl}-N-(methanesulfonyl)formamide61058-49-9C21H17N3O3S
- Benzyl N-(4-{6-methylimidazo[2,1-b][1,3]thiazole-5-carbonyl}phenyl)carbamate2680769-10-0C21H17N3O3S
- 4-(2,5-Dimethylbenzoyl)-3-hydroxy-5-(pyridin-4-yl)-1-(1,3-thiazol-2-yl)-2,5-dihydro-1H-pyrrol-2-oneC21H17N3O3S
Frequently asked questions
What is the molar mass of C21H17N3O3S?
The molar mass of C21H17N3O3S is 391.45 g/mol, calculated from standard atomic weights for 21 carbon atoms, 17 hydrogen atoms, 3 nitrogen atoms, 3 oxygen atoms and 1 sulfur atom. The monoisotopic mass is 391.0991 Da.
How many compounds have the formula C21H17N3O3S?
CompoundList lists 162 compounds with the molecular formula C21H17N3O3S, including N-[4-(6-Methoxypyridazin-3-yl)phenyl]naphthalene-2-sulfonamide, N-[3-(1-Methyl-6-oxo-1,6-dihydropyridazin-3-yl)phenyl]naphthalene-2-sulfonamide, N-(4-(1-Methyl-6-oxo-1,6-dihydropyridazin-3-yl)phenyl)naphthalene-2-sulfonamide. Compounds that share a formula are isomers. They contain the same atoms arranged differently, so their properties, uses and prices can be very different.
What is the degree of unsaturation of C21H17N3O3S?
C21H17N3O3S has a degree of unsaturation of 15. That is the total number of rings and pi bonds (a double bond counts as one, a triple bond as two) in any structure with this formula.