Molecular formula
C21H18N2O4S
169 compounds have this formula on CompoundList.
- Molar mass
- 394.44g/mol
- Monoisotopic mass
- 394.0987Da
- Atoms
- 46
- Elements
- 5
- Rings plus double bonds
- 14
The formula C21H18N2O4S describes a molecule made of 21 carbon atoms, 18 hydrogen atoms, 2 nitrogen atoms, 4 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 × 2163.95%12.011 × 21 = 252.231 g/mol
- H Hydrogen × 184.60%1.008 × 18 = 18.144 g/mol
- N Nitrogen × 27.10%14.007 × 2 = 28.014 g/mol
- O Oxygen × 416.22%15.999 × 4 = 63.996 g/mol
- S Sulfur × 18.13%32.06 × 1 = 32.060 g/mol
Look up another formula
Compounds with the formula C21H18N2O4S
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 100 of 169 compounds
![3-[(5Z)-2,4-Dioxo-5-[(E)-3-phenylprop-2-enylidene]-1,3-thiazolidin-3-yl]-N-(4-hydroxyphenyl)propanamide chemical structure, C21H18N2O4S, CAS 622355-49-1](/s/XNXMXBBJJJNVPV-DFBITEFZSA-N.svg)
3-[(5Z)-2,4-Dioxo-5-[(E)-3-phenylprop-2-enylidene]-1,3-thiazolidin-3-yl]-N-(4-hydroxyphenyl)propanamide
CAS 622355-49-1C21H18N2O4S
N-(2-Naphthalene)sulfonyl-DL-tryptophan
CAS 40356-23-8C21H18N2O4S
(S)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-3-(thiazol-4-yl)propanoic acid
CAS 205528-32-1C21H18N2O4S
Fmoc-D-4-Thiazolylalanine
CAS 205528-33-2C21H18N2O4S
(S)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-3-(thiazol-2-yl)propanoic acid
CAS 1306728-64-2C21H18N2O4S
![N-(4-Hydroxyphenyl)-2-[5-(2-methyl-3-phenyl-2-propen-1-ylidene)-2,4-dioxo-1,3-thiazolidin-3-yl]acetamide chemical structure, C21H18N2O4S, CAS 1164535-51-6](/s/AZOLLTGLXNDVQN-UJUKKVGJSA-N.svg)
N-(4-Hydroxyphenyl)-2-[5-(2-methyl-3-phenyl-2-propen-1-ylidene)-2,4-dioxo-1,3-thiazolidin-3-yl]acetamide
CAS 1164535-51-6C21H18N2O4S
![N-(3-Hydroxyphenyl)-2-[5-(2-methyl-3-phenyl-2-propen-1-ylidene)-2,4-dioxo-1,3-thiazolidin-3-yl]acetamide chemical structure, C21H18N2O4S, CAS 1164525-35-2](/s/HHQVEABLHVHPRA-RZTVDGLLSA-N.svg)
N-(3-Hydroxyphenyl)-2-[5-(2-methyl-3-phenyl-2-propen-1-ylidene)-2,4-dioxo-1,3-thiazolidin-3-yl]acetamide
CAS 1164525-35-2C21H18N2O4S
![3-({[(3-Methoxy-2-naphthoyl)amino]carbonothioyl}amino)-4-methylbenzoic acid chemical structure, C21H18N2O4S, CAS 433697-67-7](/s/CEXXBODPZONRKG-UHFFFAOYSA-N.svg)
3-({[(3-Methoxy-2-naphthoyl)amino]carbonothioyl}amino)-4-methylbenzoic acid
CAS 433697-67-7C21H18N2O4S
2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-3-(thiazol-2-yl)propanoic acid
CAS 1379862-69-7C21H18N2O4S
![2-[({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)methyl]-4-methyl-1,3-thiazole-5-carboxylic acid chemical structure, C21H18N2O4S, CAS 1340415-08-8](/s/GEAOLCDOCHBCNU-UHFFFAOYSA-N.svg)
2-[({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)methyl]-4-methyl-1,3-thiazole-5-carboxylic acid
CAS 1340415-08-8C21H18N2O4S
![2-[2-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)ethyl]-1,3-thiazole-4-carboxylic acid chemical structure, C21H18N2O4S, CAS 1508208-26-1](/s/NEYKGMWFAPTGND-UHFFFAOYSA-N.svg)
2-[2-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)ethyl]-1,3-thiazole-4-carboxylic acid
CAS 1508208-26-1C21H18N2O4S
2-(1-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)ethyl)-1,3-thiazole-4-carboxylic acid
CAS 1518885-04-5C21H18N2O4S
N-Furan-2-ylmethyl-N-(2-hydroxy-quinolin-3-ylmethyl)-benzenesulfonamide
CAS 838880-61-8C21H18N2O4S
![5-(3,4-Dimethoxyphenyl)-3-(4-methoxyphenyl)thieno[2,3-d]pyrimidin-4(3H)-one chemical structure, C21H18N2O4S, CAS 446045-37-0](/s/CMFBVNRYYNSJTI-UHFFFAOYSA-N.svg)
5-(3,4-Dimethoxyphenyl)-3-(4-methoxyphenyl)thieno[2,3-d]pyrimidin-4(3H)-one
CAS 446045-37-0C21H18N2O4S
2-(1-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)ethyl)-1,3-thiazole-5-carboxylic acid
CAS 2138144-26-8C21H18N2O4S
2-(((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)methyl)-5-methyl-1,3-thiazole-4-carboxylic acid
CAS 2137710-89-3C21H18N2O4S
![3-({[(3-Methoxynaphthalen-2-yl)carbonyl]carbamothioyl}amino)-2-methylbenzoic acid chemical structure, C21H18N2O4S, CAS 532416-02-7](/s/PBQSCEQFVASBQP-UHFFFAOYSA-N.svg)
3-({[(3-Methoxynaphthalen-2-yl)carbonyl]carbamothioyl}amino)-2-methylbenzoic acid
CAS 532416-02-7C21H18N2O4S
![2-Benzamido-5-(benzo[d][1,3]dioxol-5-ylmethyl)-4-methylthiophene-3-carboxamide chemical structure, C21H18N2O4S, CAS 476368-11-3](/s/ZTVYLOYMGFEOFJ-UHFFFAOYSA-N.svg)
2-Benzamido-5-(benzo[d][1,3]dioxol-5-ylmethyl)-4-methylthiophene-3-carboxamide
CAS 476368-11-3C21H18N2O4S
![4-(Benzenesulfonyl)-2-(furan-2-yl)-N-[(4-methylphenyl)methyl]-1,3-oxazol-5-amine chemical structure, C21H18N2O4S, CAS 720673-19-8](/s/XCTWRZBEUYDFQX-UHFFFAOYSA-N.svg)
4-(Benzenesulfonyl)-2-(furan-2-yl)-N-[(4-methylphenyl)methyl]-1,3-oxazol-5-amine
CAS 720673-19-8C21H18N2O4S
Aderamastat
CAS 877176-23-3C21H18N2O4S
![N-[4-[(4-Benzoylphenyl)sulfamoyl]phenyl]acetamide chemical structure, C21H18N2O4S, CAS 18267-97-5](/s/PEHXUDGXKLFCSA-UHFFFAOYSA-N.svg)
N-[4-[(4-Benzoylphenyl)sulfamoyl]phenyl]acetamide
CAS 18267-97-5C21H18N2O4S
N-(2-Methoxy-5-nitrophenyl)-2-phenyl-2-(phenylsulfanyl)acetamide
CAS 335398-44-2C21H18N2O4S
![(3R)-3-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)-3-(1,3-thiazol-2-yl)propanoic acid chemical structure, C21H18N2O4S, CAS 1704979-85-0](/s/GONOGNHLVLXPFM-GOSISDBHSA-N.svg)
(3R)-3-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)-3-(1,3-thiazol-2-yl)propanoic acid
CAS 1704979-85-0C21H18N2O4S
![2-[2-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)ethyl]-1,3-thiazole-5-carboxylic acid chemical structure, C21H18N2O4S, CAS 2138205-25-9](/s/OQHBIPPWOSKNLG-UHFFFAOYSA-N.svg)
2-[2-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)ethyl]-1,3-thiazole-5-carboxylic acid
CAS 2138205-25-9C21H18N2O4S
- 2,4(1H,3H)-Pyrimidinedione, 1-((2-hydroxyethoxy)methyl)-5-(phenylethynyl)-6-(phenylthio)-125056-93-1C21H18N2O4S
- (2-(1H-Indol-5-yl)thiazol-4-yl)(3,4,5-trimethoxyphenyl)methanone1202516-78-6C21H18N2O4S
- N-(4-((2-Benzoylanilino)sulfonyl)phenyl)acetamide107506-26-3C21H18N2O4S
- [4-[(4-Acetamidophenyl)iminomethyl]-2-methoxyphenyl] thiophene-2-carboxylate385396-11-2C21H18N2O4S
- 7-Methylthiocamptothecin203923-75-5C21H18N2O4S
- Ethyl 2-(4-acetylbenzamido)-4-phenylthiazole-5-carboxylate312605-16-6C21H18N2O4S
- 6-(((4,6-Dimethylpyrimidin-2-yl)thio)methyl)-4-oxo-4H-pyran-3-yl cinnamate1321931-94-5C21H18N2O4S
- N-(3-Acetylphenyl)-1-ethyl-2-oxo-1,2-dihydrobenzo[cd]indole-6-sulfonamide919974-50-8C21H18N2O4S
- N-(Furan-2-ylmethyl)-2-(3-(phenylsulfonyl)-1H-indol-1-yl)acetamide942003-75-0C21H18N2O4S
- 3-Methyl-N-(8-methyl-11-oxo-10,11-dihydrodibenzo[b,f][1,4]oxazepin-2-yl)benzenesulfonamide921897-81-6C21H18N2O4S
- 1,6-Dihydro-6-methyl-4-[5-(methylsulfonyl)-2-phenoxyphenyl]-7H-pyrrolo[2,3-c]pyridin-7-one1445993-77-0C21H18N2O4S
- RefChem:3816416069-06-3C21H18N2O4S
- 4-[(1,1-Dioxido-1,2-benzisothiazol-3-yl)(4-methoxybenzyl)amino]phenol433254-23-0C21H18N2O4S
- 3-Benzothiazol-2-yl-7-hydroxy-8-morpholin-4-ylmethyl-chromen-2-one301308-63-4C21H18N2O4S
- (2-(1H-Indol-2-yl)thiazol-4-yl)(3,4,5-trimethoxyphenyl)methanone1202516-79-7C21H18N2O4S
- N-Benzo[g][1,3]benzothiazol-2-yl-3,4,5-trimethoxybenzamide325978-10-7C21H18N2O4S
- 2-[(1,1-Dioxido-1,2-benzisothiazol-3-yl)(4-methoxybenzyl)amino]phenol663199-63-1C21H18N2O4S
- Fmoc-3-Ala(5-thiazoyl)-OH870010-07-4C21H18N2O4S
- (2-Benzo[b]thien-3-yl-1H-imidazol-5-yl)(3,4,5-trimethoxyphenyl)methanone1393085-33-0C21H18N2O4S
- 2-({[3-(Aminocarbonyl)-5-benzyl-4-methyl-2-thienyl]amino}carbonyl)benzoic acid314281-77-1C21H18N2O4S
- Methyl 2-({2-oxo-2-phenyl-1-[(2-thienylcarbonyl)amino]ethyl}amino)benzoate324543-59-1C21H18N2O4S
- 1-(4,5-Dimethylthiazol-2-yl)-5-(furan-2-yl)-3-hydroxy-4-(4-methylbenzoyl)-1H-pyrrol-2(5H)-one577696-62-9C21H18N2O4S
- Methyl 2-benzamido-4-methyl-5-(phenylcarbamoyl)thiophene-3-carboxylate444998-17-8C21H18N2O4S
- N-(4-Methoxyphenyl)-4-[(4-methylphenyl)sulfanyl]-3-nitrobenzenecarboxamide303988-20-7C21H18N2O4S
- N-(2-Hydroxyphenyl)-2-{(5Z)-5-[(2E)-2-methyl-3-phenylprop-2-en-1-ylidene]-2,4-dioxo-1,3-thiazolidin-3-yl}acetamide371235-59-5C21H18N2O4S
- N-(5-(4-Methoxybenzyl)thiazol-2-yl)-1-oxoisochroman-3-carboxamide907975-18-2C21H18N2O4S
- Methyl 2-({9-methoxy-2-phenyl-5H-chromeno[2,3-D]pyrimidin-4-YL}sulfanyl)acetate866811-22-5C21H18N2O4S
- 5-(2-Phenylethynyl)-N-[2-(4-sulfamoylphenyl)ethyl]furan-2-carboxamide352329-72-7C21H18N2O4S
- 2-(9H-Fluoren-9-ylmethoxycarbonylamino)-3-(1,3-thiazol-5-yl)propanoic acid1379836-38-0C21H18N2O4S
- 4-(Benzenesulfonyl)-2-(furan-2-yl)-N-(2-phenylethyl)-1,3-oxazol-5-amine823829-40-9C21H18N2O4S
- N-Benzo[e][1,3]benzothiazol-2-yl-3,4,5-trimethoxybenzamide392236-83-8C21H18N2O4S
- N-(3-Cyano-6-methyl-4,5,6,7-tetrahydro-1-benzothiophen-2-yl)-8-methoxy-2-oxochromene-3-carboxamide774588-53-3C21H18N2O4S
- 2-(2-Furyl)-4-[(4-methylphenyl)sulfonyl]-5-[benzylamino]-1,3-oxazole304658-14-8C21H18N2O4S
- 2-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)-2-(4-methyl-1,3-thiazol-5-yl)acetic acid1692636-77-3C21H18N2O4S
- (3S)-3-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)-3-(1,3-thiazol-2-yl)propanoic acid1704969-60-7C21H18N2O4S
- 2-{2-[({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)methyl]-1,3-thiazol-4-yl}acetic acid2138189-66-7C21H18N2O4S
- 4-(Benzenesulfonyl)-N-benzyl-2-(furan-2-yl)-N-methyl-1,3-oxazol-5-amine720673-27-8C21H18N2O4S
- Methyl 2-[(3-methoxynaphthalene-2-carbonyl)carbamothioylamino]benzoate371130-59-5C21H18N2O4S
- 4-[[5-(4-Methylphenyl)-1,3,4-oxadiazol-2-yl]sulfanyl]but-2-ynyl 4-methoxybenzoate461439-58-7C21H18N2O4S
- N-(2-Methoxy-4-nitrophenyl)-2-phenyl-2-(phenylsulfanyl)acetamide349435-38-7C21H18N2O4S
- 5-(4-Ethylphenyl)-3-hydroxy-1-(5-methyl-1,2-oxazol-3-yl)-4-(thiophen-2-ylcarbonyl)-1,5-dihydro-2H-pyrrol-2-one840517-79-5C21H18N2O4S
- (5Z)-3-(4-Methoxyphenyl)-5-[(3-methoxy-4-prop-2-ynoxyphenyl)methylidene]-2-sulfanylideneimidazolidin-4-one431072-71-8C21H18N2O4S
- 5-Phenyl-2-(4-pyridyl)-1,3-oxazole, 4-methylbenzenesulfonic acid100929-93-9C21H18N2O4S
- 2-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)-3-(1,3-thiazol-4-yl)propanoic acid1696377-69-1C21H18N2O4S
- 3-(2-Benzothiazolyl)-7-(diethylamino)coumarin-4-carboxylic acid136997-14-3C21H18N2O4S
- 2-(8-Ethoxy-2-oxo-2H-chromen-3-yl)-5,6,7,8-tetrahydro[1]benzothieno[2,3-d]pyrimidin-4(3H)-one313985-92-1C21H18N2O4S
- 4-Methyl-N-(2-methyl-6-oxo-5H-benzo[b][1,4]benzoxazepin-8-yl)benzenesulfonamide866152-15-0C21H18N2O4S
- [5-Methoxy-1-(phenylsulfonyl)-1H-indol-2-yl](3-pyridinyl)methanol56995-14-3C21H18N2O4S
- 2-(Furan-2-yl)-N-(1-phenylethyl)-4-(phenylsulfonyl)-1,3-oxazol-5-amine862793-22-4C21H18N2O4S
- Benzyl 4-(1,1-dioxido-3,4-dihydro-2H-1,2,4-benzothiadiazin-3-yl)benzoate1040680-07-6C21H18N2O4S
- (2R)-2-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)-3-(1,3-thiazol-2-yl)propanoic acid1987261-05-1C21H18N2O4S
- Methyl 3-(3-{(E)-[2,4-dioxo-3-(prop-2-yn-1-yl)-1,3-thiazolidin-5-ylidene]methyl}-2,5-dimethyl-1H-pyrrol-1-yl)benzoate431933-92-5C21H18N2O4S
- Methyl 2-[({2-methyl-3-[(thiophen-2-ylcarbonyl)amino]phenyl}carbonyl)amino]benzoate831199-52-1C21H18N2O4S
- 3'-(2,3-Dihydro-1,4-benzodioxin-6-yl)-5,6-dihydro-4H,4'H-spiro[pyrrolo[3,2,1-ij]quinoline-1,2'-[1,3]thiazolidine]-2,4'-dione894214-47-2C21H18N2O4S
- 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}-2-phenylethane-1-sulfonamide922062-91-7C21H18N2O4S
- N-(8-Methyl-11-oxo-10,11-dihydrodibenzo[b,f][1,4]oxazepin-2-yl)-1-phenylmethanesulfonamide921898-17-1C21H18N2O4S
- N-[4-({[(Thiophen-2-yl)methyl]carbamoyl}methyl)phenyl]-2H-1,3-benzodioxole-5-carboxamide1060313-51-0C21H18N2O4S
- 4-Methyl-N-(10-methyl-11-oxo-10,11-dihydrodibenzo[b,f][1,4]oxazepin-2-yl)benzenesulfonamide922061-46-9C21H18N2O4S
- N-{3-[(1,3-Dioxaindan-5-yloxy)methyl]phenyl}-2-(methylsulfanyl)pyridine-3-carboxamide1223483-02-0C21H18N2O4S
- N-(Benzo[d][1,3]dioxol-5-yl)-4-((4-cyclopropylthiazol-2-yl)methoxy)benzamide1251559-25-7C21H18N2O4S
- Methyl (2Z)-2-[(2,3-dihydro-1-benzofuran-6-ylacetyl)imino]-5-phenyl-2,3-dihydro-1,3-thiazole-4-carboxylate1401540-32-6C21H18N2O4S
- (2Z)-2-[4-(3,4-Dimethoxyphenyl)-1,3-thiazol-2-yl]-3-(4-hydroxy-3-methoxyphenyl)prop-2-enenitrile476671-13-3C21H18N2O4S
- Methyl 4-(3-(3-methoxy-2-naphthoyl)thioureido)benzoate330826-77-2C21H18N2O4S
- 4-[(6,7-Dimethyl-3-oxo[1,3]thiazolo[3,2-a]benzimidazol-2(3H)-ylidene)methyl]-2-methoxyphenyl acetate330841-53-7C21H18N2O4S
- N-(3-Ethyl-4-methoxy-7-methyl-1,3-benzothiazol-2-ylidene)-4-oxochromene-2-carboxamide868369-72-6C21H18N2O4S
- N-(3-Ethyl-4-methoxy-7-methyl-1,3-benzothiazol-2-ylidene)-2-oxochromene-3-carboxamide868369-80-6C21H18N2O4S
- N-(4-Ethoxy-3-prop-2-ynyl-1,3-benzothiazol-2-ylidene)-2,3-dihydro-1,4-benzodioxine-6-carboxamide868674-25-3C21H18N2O4S
- 2-(4-Methylphenoxy)-N-[4-(4-nitrophenyl)sulfanylphenyl]acetamide701254-44-6C21H18N2O4S
- 3-Cyclopropyl-2-[2-(2,3-dihydro-1,4-benzodioxin-6-yl)-2-oxoethyl]sulfanylquinazolin-4-one832138-74-6C21H18N2O4S
- N-(1-Ethyl-2-oxo-1,2-dihydrobenzo[cd]indol-6-yl)-2-(phenylsulfonyl)acetamide895457-46-2C21H18N2O4S
- N-(1-Ethyl-2-oxo-1,2-dihydrobenzo[cd]indol-6-yl)-2-(methylsulfonyl)benzamide896363-60-3C21H18N2O4S
- N-(1-Ethyl-2-oxo-1,2-dihydrobenzo[cd]indol-6-yl)-3-(methylsulfonyl)benzamide896287-76-6C21H18N2O4S
- N-(Furan-2-ylmethyl)-4-(phenylsulfonyl)-2-(m-tolyl)oxazol-5-amine862738-62-3C21H18N2O4S
- N-{9-Methyl-10-oxo-2-oxa-9-azatricyclo[9.4.0.0^{3,8}]pentadeca-1(11),3(8),4,6,12,14-hexaen-13-yl}-1-phenylmethanesulfonamide922010-32-0C21H18N2O4S
- (Z)-N-(4-Ethoxy-3-(prop-2-yn-1-yl)benzo[d]thiazol-2(3H)-ylidene)-2,3-dihydrobenzo[b][1,4]dioxine-2-carboxamide868674-84-4C21H18N2O4S
- Methyl 4-{9-ethoxy-4-sulfanylidene-3H,4H,5H-chromeno[2,3-d]pyrimidin-2-yl}benzoate931749-95-0C21H18N2O4S
Frequently asked questions
What is the molar mass of C21H18N2O4S?
The molar mass of C21H18N2O4S is 394.44 g/mol, calculated from standard atomic weights for 21 carbon atoms, 18 hydrogen atoms, 2 nitrogen atoms, 4 oxygen atoms and 1 sulfur atom. The monoisotopic mass is 394.0987 Da.
How many compounds have the formula C21H18N2O4S?
CompoundList lists 169 compounds with the molecular formula C21H18N2O4S, including 3-[(5Z)-2,4-Dioxo-5-[(E)-3-phenylprop-2-enylidene]-1,3-thiazolidin-3-yl]-N-(4-hydroxyphenyl)propanamide, N-(2-Naphthalene)sulfonyl-DL-tryptophan, (S)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-3-(thiazol-4-yl)propanoic 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 C21H18N2O4S?
C21H18N2O4S 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.