Molecular formula
C21H18N2O5S
84 compounds have this formula on CompoundList.
- Molar mass
- 410.44g/mol
- Monoisotopic mass
- 410.0936Da
- Atoms
- 47
- Elements
- 5
- Rings plus double bonds
- 14
The formula C21H18N2O5S describes a molecule made of 21 carbon atoms, 18 hydrogen atoms, 2 nitrogen atoms, 5 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 × 2161.45%12.011 × 21 = 252.231 g/mol
- H Hydrogen × 184.42%1.008 × 18 = 18.144 g/mol
- N Nitrogen × 26.83%14.007 × 2 = 28.014 g/mol
- O Oxygen × 519.49%15.999 × 5 = 79.995 g/mol
- S Sulfur × 17.81%32.06 × 1 = 32.060 g/mol
Look up another formula
Compounds with the formula C21H18N2O5S
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 84 of 84 compounds
![Methyl 4-({2-[(phenylsulfonyl)amino]benzoyl}amino)benzoate chemical structure, C21H18N2O5S, CAS 824975-51-1](/s/FTOXJSMDKHMORW-UHFFFAOYSA-N.svg)
Methyl 4-({2-[(phenylsulfonyl)amino]benzoyl}amino)benzoate
CAS 824975-51-1C21H18N2O5S
![N-[3-Methoxy-4-(thiophene-2-carbonylamino)phenyl]-2,3-dihydro-1,4-benzodioxine-6-carboxamide chemical structure, C21H18N2O5S, CAS 876900-24-2](/s/SGEQSEZIVYTBEV-UHFFFAOYSA-N.svg)
N-[3-Methoxy-4-(thiophene-2-carbonylamino)phenyl]-2,3-dihydro-1,4-benzodioxine-6-carboxamide
CAS 876900-24-2C21H18N2O5S
![2-({4-[(Methylanilino)sulfonyl]anilino}carbonyl)benzoic acid chemical structure, C21H18N2O5S, CAS 791793-62-9](/s/WIZBPXGDKQWWOQ-UHFFFAOYSA-N.svg)
2-({4-[(Methylanilino)sulfonyl]anilino}carbonyl)benzoic acid
CAS 791793-62-9C21H18N2O5S
N-(3-Ethyl-4,7-dimethoxy-1,3-benzothiazol-2-ylidene)-4-oxochromene-2-carboxamide
CAS 868369-73-7C21H18N2O5S
![Methyl (2E)-2-(furan-2-ylmethylidene)-5-(4-methoxyphenyl)-7-methyl-3-oxo-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate chemical structure, C21H18N2O5S, CAS 5849-69-4](/s/QNILFBSCLAHVKW-LFIBNONCSA-N.svg)
Methyl (2E)-2-(furan-2-ylmethylidene)-5-(4-methoxyphenyl)-7-methyl-3-oxo-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate
CAS 5849-69-4C21H18N2O5S
![(Z)-Methyl 5-methyl-2-((5-methylfuran-2-yl)methylene)-1-oxo-1,2,5,11-tetrahydro-5,11-methanobenzo[g]thiazolo[2,3-d][1,3,5]oxadiazocine-13-carboxylate chemical structure, C21H18N2O5S, CAS 1008936-53-5](/s/OCNKOYCYKYESRO-GDNBJRDFSA-N.svg)
(Z)-Methyl 5-methyl-2-((5-methylfuran-2-yl)methylene)-1-oxo-1,2,5,11-tetrahydro-5,11-methanobenzo[g]thiazolo[2,3-d][1,3,5]oxadiazocine-13-carboxylate
CAS 1008936-53-5C21H18N2O5S
N-(5,6-Dimethoxy-3-prop-2-ynyl-1,3-benzothiazol-2-ylidene)-2,3-dihydro-1,4-benzodioxine-6-carboxamide
CAS 895433-40-6C21H18N2O5S
Ethyl 5-methyl-2-(3-nitrobenzamido)-4-phenylthiophene-3-carboxylate
CAS 325806-54-0C21H18N2O5S
![1-(Furan-2-carbonyl)-6-(piperidin-1-ylsulfonyl)benzo[cd]indol-2(1H)-one chemical structure, C21H18N2O5S, CAS 881477-22-1](/s/IGIBPCFWNRFXGI-UHFFFAOYSA-N.svg)
1-(Furan-2-carbonyl)-6-(piperidin-1-ylsulfonyl)benzo[cd]indol-2(1H)-one
CAS 881477-22-1C21H18N2O5S
2,3-Dimethoxy-N-(4-(5-methoxybenzofuran-2-yl)thiazol-2-yl)benzamide
CAS 922057-72-5C21H18N2O5S
![Ethyl 2-(2,3-dihydrobenzo[b][1,4]dioxine-6-carboxamido)-4-phenylthiazole-5-carboxylate chemical structure, C21H18N2O5S, CAS 477554-69-1](/s/LVPDRNRWPVQIGU-UHFFFAOYSA-N.svg)
Ethyl 2-(2,3-dihydrobenzo[b][1,4]dioxine-6-carboxamido)-4-phenylthiazole-5-carboxylate
CAS 477554-69-1C21H18N2O5S
![1-(2-Methoxybenzoyl)-N,N-dimethyl-2-oxo-1,2-dihydrobenzo[cd]indole-6-sulfonamide chemical structure, C21H18N2O5S, CAS 881477-01-6](/s/CAPUTCOIUAJYCI-UHFFFAOYSA-N.svg)
1-(2-Methoxybenzoyl)-N,N-dimethyl-2-oxo-1,2-dihydrobenzo[cd]indole-6-sulfonamide
CAS 881477-01-6C21H18N2O5S
2,5-Dimethoxy-N-(4-(5-methoxybenzofuran-2-yl)thiazol-2-yl)benzamide
CAS 946312-52-3C21H18N2O5S
N-Ethyl-4-(((3-oxo-3H-phenoxazin-7-yl)oxy)methyl)benzenesulfonamide
CAS 1913291-02-7C21H18N2O5S
1-(4,5-Dimethylthiazol-2-yl)-5-(furan-2-yl)-3-hydroxy-4-(4-methoxybenzoyl)-1H-pyrrol-2(5H)-one
CAS 573970-81-7C21H18N2O5S
![Methyl 5-benzyl-4-methyl-2-[(2-nitrobenzoyl)amino]thiophene-3-carboxylate chemical structure, C21H18N2O5S, CAS 314283-58-4](/s/RUAOGQNGVVRWNT-UHFFFAOYSA-N.svg)
Methyl 5-benzyl-4-methyl-2-[(2-nitrobenzoyl)amino]thiophene-3-carboxylate
CAS 314283-58-4C21H18N2O5S
5-(4-Ethoxyphenyl)-3-hydroxy-1-(5-methylisoxazol-3-yl)-4-(thiophene-2-carbonyl)-1H-pyrrol-2(5H)-one
CAS 618873-25-9C21H18N2O5S
Ethyl 2-methyl-5-(quinolin-8-ylsulfonylamino)-1-benzofuran-3-carboxylate
CAS 708222-89-3C21H18N2O5S
Isopropyl 2-({3-nitrobenzoyl}amino)-4-phenylthiophene-3-carboxylate
CAS 445001-30-9C21H18N2O5S
Ethyl 5-methyl-2-(4-nitrobenzamido)-4-phenylthiophene-3-carboxylate
CAS 325806-53-9C21H18N2O5S
![2-{2-Ethoxy-4-[(E)-(3-oxo[1,3]thiazolo[3,2-a]benzimidazol-2(3H)-ylidene)methyl]phenoxy}propanoic acid chemical structure, C21H18N2O5S, CAS 431885-88-0](/s/VWMBWCXLFRQHFT-WOJGMQOQSA-N.svg)
2-{2-Ethoxy-4-[(E)-(3-oxo[1,3]thiazolo[3,2-a]benzimidazol-2(3H)-ylidene)methyl]phenoxy}propanoic acid
CAS 431885-88-0C21H18N2O5S
![(E)-Methyl 2-(furan-3-ylmethylene)-5-(4-methoxyphenyl)-7-methyl-3-oxo-3,5-dihydro-2H-thiazolo[3,2-a]pyrimidine-6-carboxylate chemical structure, C21H18N2O5S, CAS 445025-50-3](/s/IOXCXOVVPVXJQC-MHWRWJLKSA-N.svg)
(E)-Methyl 2-(furan-3-ylmethylene)-5-(4-methoxyphenyl)-7-methyl-3-oxo-3,5-dihydro-2H-thiazolo[3,2-a]pyrimidine-6-carboxylate
CAS 445025-50-3C21H18N2O5S
Methyl 2-({3-nitrobenzoyl}amino)-5-methyl-4-(4-methylphenyl)thiophene-3-carboxylate
CAS 445006-49-5C21H18N2O5S
Methyl 4-(2,4-dimethylphenyl)-2-({4-nitrobenzoyl}amino)-3-thiophenecarboxylate
CAS 445258-34-4C21H18N2O5S
- Ethyl 5-benzyl-2-({4-nitrobenzoyl}amino)-3-thiophenecarboxylate492441-66-4C21H18N2O5S
- Ethyl 2-({4-nitrobenzoyl}amino)-4-(3-methylphenyl)-3-thiophenecarboxylate445258-47-9C21H18N2O5S
- N-[4-[(4-Methylphenyl)sulfamoyl]phenyl]-1,3-benzodioxole-5-carboxamide702646-81-9C21H18N2O5S
- (Z)-N-(6-Methoxy-3-(2-methoxyethyl)benzo[d]thiazol-2(3H)-ylidene)-4-oxo-4H-chromene-2-carboxamide865161-45-1C21H18N2O5S
- Methyl 2-({3-nitro-2-methylbenzoyl}amino)-4-(4-methylphenyl)thiophene-3-carboxylate444998-93-0C21H18N2O5S
- N-[4-(Benzylsulfamoyl)phenyl]-1,3-benzodioxole-5-carboxamide777876-12-7C21H18N2O5S
- (Z)-N-(6-Methoxy-3-(2-methoxyethyl)benzo[d]thiazol-2(3H)-ylidene)-2-oxo-2H-chromene-3-carboxamide865161-46-2C21H18N2O5S
- Ethyl 2-(2,3-dihydrobenzo[b][1,4]dioxine-2-carboxamido)-4-phenylthiazole-5-carboxylate681168-69-4C21H18N2O5S
- N-[4-(1-Benzofuran-2-yl)-1,3-thiazol-2-yl]-3,4,5-trimethoxybenzamide941918-51-0C21H18N2O5S
- Ethyl 4-{[(1-methyl-2-oxo-1,2-dihydrobenzo[cd]indol-6-yl)sulfonyl]amino}benzoate714263-08-8C21H18N2O5S
- 2-(3-Methoxyphenoxy)-N-[4-(4-nitrophenyl)sulfanylphenyl]acetamide693267-54-8C21H18N2O5S
- N-(2,5-Dimethoxyphenyl)-3-nitro-4-(phenylsulfanyl)benzenecarboxamide303988-32-1C21H18N2O5S
- Methyl 2-{[(1-ethyl-2-oxo-1,2-dihydrobenzo[cd]indol-6-yl)sulfonyl]amino}benzoate823828-21-3C21H18N2O5S
- 4,5-Dimethoxy-2-nitro-N-(2-phenylsulfanylphenyl)benzamide827617-65-2C21H18N2O5S
- N-[[4-[5-(Hydroxymethyl)furan-2-yl]phenyl]carbamothioyl]-2,3-dihydro-1,4-benzodioxine-6-carboxamide894880-03-6C21H18N2O5S
- 4-Methoxy-N-(2-methyl-6-oxo-5H-benzo[b][1,4]benzoxazepin-8-yl)benzenesulfonamide866152-16-1C21H18N2O5S
- Methyl 2-[[4-(2,5-dioxopyrrol-1-yl)benzoyl]amino]-4,5,6,7-tetrahydro-1-benzothiophene-3-carboxylate438531-87-4C21H18N2O5S
- (Z)-N-(5,6-Dimethoxy-3-(prop-2-yn-1-yl)benzo[d]thiazol-2(3H)-ylidene)-2,3-dihydrobenzo[b][1,4]dioxine-2-carboxamide895444-37-8C21H18N2O5S
- N-[2-(2-Methoxyacetamido)-5-(thiophen-2-yl)phenyl]-2H-1,3-benzodioxole-5-carboxamide1206998-66-4C21H18N2O5S
- Methyl 4-[({4-[(phenylsulfonyl)amino]phenyl}carbonyl)amino]benzoate713502-98-8C21H18N2O5S
- Ethyl 2-(4-(methoxycarbonyl)benzamido)-4-phenylthiazole-5-carboxylate476326-57-5C21H18N2O5S
- N-[3-Methoxy-4-(thiophen-2-ylcarbamoyl)phenyl]-2,3-dihydro-1,4-benzodioxine-6-carboxamide879065-17-5C21H18N2O5S
- 4-Methoxy-3-methyl-N-{10-oxo-2-oxa-9-azatricyclo[9.4.0.0^{3,8}]pentadeca-1(11),3(8),4,6,12,14-hexaen-13-yl}benzene-1-sulfonamide922011-41-4C21H18N2O5S
- N-(4-Ethoxyphenyl)-2-(furan-2-yl)-4-(phenylsulfonyl)-1,3-oxazol-5-amine862793-29-1C21H18N2O5S
- 2,3-Dimethoxy-N-(4-(7-methoxybenzofuran-2-yl)thiazol-2-yl)benzamide921797-06-0C21H18N2O5S
- (E)-1-(4-Methoxybenzo[d]thiazol-2-yl)azetidin-3-yl 3-(benzo[d][1,3]dioxol-5-yl)acrylate1396891-34-1C21H18N2O5S
- (3-((4-Methoxybenzo[d]thiazol-2-yl)oxy)azetidin-1-yl)(7-methoxybenzofuran-2-yl)methanone1421449-05-9C21H18N2O5S
- 4-Methoxy-3-({[(3-methoxynaphthalen-2-yl)carbonyl]carbamothioyl}amino)benzoic acid434304-96-8C21H18N2O5S
- N-(3-Ethyl-4,7-dimethoxy-1,3-benzothiazol-2-ylidene)-2-oxochromene-3-carboxamide868369-81-7C21H18N2O5S
- Methyl 4-[(Z)-(3-{2-[(3-methylphenyl)amino]-2-oxoethyl}-2,4-dioxo-1,3-thiazolidin-5-ylidene)methyl]benzoate432010-21-4C21H18N2O5S
- 2-(Benzenesulfonamido)-N-(1,3-benzodioxol-5-ylmethyl)benzamide827004-59-1C21H18N2O5S
- N-(4-(2,4-Dimethoxyphenyl)thiazol-2-yl)-2-oxo-4a,8a-dihydro-2H-chromene-3-carboxamide394227-32-8C21H18N2O5S
- Methyl 2-(3,4-dimethoxybenzoyl)imino-3-prop-2-ynyl-1,3-benzothiazole-6-carboxylate941917-00-6C21H18N2O5S
- (Z)-Methyl 3-allyl-2-((4-(methoxycarbonyl)benzoyl)imino)-2,3-dihydrobenzo[d]thiazole-6-carboxylate865174-93-2C21H18N2O5S
- [2-Oxo-2-(1H-pyrrol-2-yl)ethyl] 4-[[(E)-2-phenylethenyl]sulfonylamino]benzoate875130-34-0C21H18N2O5S
- 4-(Benzenesulfonyl)-2-(furan-2-yl)-N-[(4-methoxyphenyl)methyl]-1,3-oxazol-5-amine862793-25-7C21H18N2O5S
- 2-Methoxy-5-methyl-N-(11-oxo-10,11-dihydrodibenzo[b,f][1,4]oxazepin-2-yl)benzenesulfonamide922062-79-1C21H18N2O5S
- 4-Ethoxy-N-(11-oxo-10,11-dihydrodibenzo[b,f][1,4]oxazepin-2-yl)benzenesulfonamide922011-47-0C21H18N2O5S
- 4-Methoxy-N-(10-methyl-11-oxo-10,11-dihydrodibenzo[b,f][1,4]oxazepin-2-yl)benzenesulfonamide921919-37-1C21H18N2O5S
- 4-Methoxy-2-methyl-N-(11-oxo-10,11-dihydrodibenzo[b,f][1,4]oxazepin-2-yl)benzenesulfonamide921897-30-5C21H18N2O5S
- 4-Methoxy-N-(8-methyl-11-oxo-10,11-dihydrodibenzo[b,f][1,4]oxazepin-2-yl)benzenesulfonamide921897-75-8C21H18N2O5S
- N1-(benzo[d][1,3]dioxol-5-yl)-N2-((5-(hydroxy(phenyl)methyl)thiophen-2-yl)methyl)oxalamide1797965-88-8C21H18N2O5S
- (5Z)-1-(4-Ethylphenyl)-5-[(6-methoxy-1,3-benzodioxol-5-yl)methylidene]-2-thioxodihydropyrimidine-4,6(1H,5H)-dione692262-01-4C21H18N2O5S
- (5Z)-1-(2,3-Dimethylphenyl)-5-[(6-methoxy-1,3-benzodioxol-5-yl)methylidene]-2-thioxodihydropyrimidine-4,6(1H,5H)-dione593272-92-5C21H18N2O5S
- 4-[(E)-(3-{2-[(3,4-Dimethylphenyl)amino]-2-oxoethyl}-2,4-dioxo-1,3-thiazolidin-5-ylidene)methyl]benzoic acid431992-15-3C21H18N2O5S
- 3,5-Dimethoxy-N-(4-(7-methoxybenzofuran-2-yl)thiazol-2-yl)benzamide921869-38-7C21H18N2O5S
- 3,4-Dimethoxy-N-(4-(7-methoxybenzofuran-2-yl)thiazol-2-yl)benzamide921566-24-7C21H18N2O5S
- 4-(2,5-Dioxopyrrolidin-1-yl)-N-{[4-(furan-3-yl)phenyl]methyl}benzene-1-sulfonamide2097884-43-8C21H18N2O5S
- 3-[5-Methoxy-1-(quinoline-8-sulfonyl)-1H-indol-3-yl]-propionic acid929254-75-1C21H18N2O5S
- N-[[4-(Acetylamino)phenyl]sulfonyl]-2-phenoxybenzamide200203-26-5C21H18N2O5S
- Benzamide, N-[2-(acetyloxy)-4-[(phenylsulfonyl)amino]phenyl]-124400-45-9C21H18N2O5S
- N-{4-[(2-Benzoylphenyl)sulfamoyl]phenyl}-2-hydroxyacetamide827577-65-1C21H18N2O5S
- N-(4-{[2-(4-Hydroxybenzoyl)phenyl]sulfamoyl}phenyl)acetamide827577-29-7C21H18N2O5S
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 2-{[2-oxo-2-(pyrrolidin-1-yl)ethyl]sulfanyl}benzoate2248292-15-9C21H18N2O5S
- 2-{[(Benzyloxy)carbonyl]amino}-4-methyl-5-(phenylcarbamoyl)thiophene-3-carboxylic acid2757906-20-8C21H18N2O5S
- 2-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)-4-(methoxymethyl)-1,3-thiazole-5-carboxylic acid2580191-36-0C21H18N2O5S
- (9H-Fluoren-9-yl)methyl N-(2-hydroxy-5-sulfamoylphenyl)carbamate2763975-71-7C21H18N2O5S
- (9H-Fluoren-9-yl)methyl N-(2-hydroxy-6-sulfamoylphenyl)carbamate2763984-49-0C21H18N2O5S
- (9H-Fluoren-9-yl)methyl N-(4-hydroxy-3-sulfamoylphenyl)carbamate2763909-48-2C21H18N2O5S
- Methyl (2Z)-2-(furan-3-ylmethylidene)-5-(4-methoxyphenyl)-7-methyl-3-oxo-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylateC21H18N2O5S
Frequently asked questions
What is the molar mass of C21H18N2O5S?
The molar mass of C21H18N2O5S is 410.44 g/mol, calculated from standard atomic weights for 21 carbon atoms, 18 hydrogen atoms, 2 nitrogen atoms, 5 oxygen atoms and 1 sulfur atom. The monoisotopic mass is 410.0936 Da.
How many compounds have the formula C21H18N2O5S?
CompoundList lists 84 compounds with the molecular formula C21H18N2O5S, including Methyl 4-({2-[(phenylsulfonyl)amino]benzoyl}amino)benzoate, N-[3-Methoxy-4-(thiophene-2-carbonylamino)phenyl]-2,3-dihydro-1,4-benzodioxine-6-carboxamide, 2-({4-[(Methylanilino)sulfonyl]anilino}carbonyl)benzoic acid. 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 C21H18N2O5S?
C21H18N2O5S has a degree of unsaturation of 14. 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.