Molecular formula
C20H18N4O2S
189 compounds have this formula on CompoundList.
- Molar mass
- 378.45g/mol
- Monoisotopic mass
- 378.1150Da
- Atoms
- 45
- Elements
- 5
- Rings plus double bonds
- 14
The formula C20H18N4O2S describes a molecule made of 20 carbon atoms, 18 hydrogen atoms, 4 nitrogen atoms, 2 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 × 2063.47%12.011 × 20 = 240.220 g/mol
- H Hydrogen × 184.79%1.008 × 18 = 18.144 g/mol
- N Nitrogen × 414.80%14.007 × 4 = 56.028 g/mol
- O Oxygen × 28.46%15.999 × 2 = 31.998 g/mol
- S Sulfur × 18.47%32.06 × 1 = 32.060 g/mol
Look up another formula
Compounds with the formula C20H18N4O2S
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 100 of 189 compounds
![2-[(3-Methyl-4-oxo-5H-pyrimido[5,4-b]indol-2-yl)thio]-N-(4-methylphenyl)acetamide chemical structure, C20H18N4O2S, CAS 537667-86-0](/s/TUWKZBRJNSSHKT-UHFFFAOYSA-N.svg)
2-[(3-Methyl-4-oxo-5H-pyrimido[5,4-b]indol-2-yl)thio]-N-(4-methylphenyl)acetamide
CAS 537667-86-0C20H18N4O2S
![N-(9-Ethylcarbazol-3-yl)-2-[(6-oxo-1H-pyrimidin-2-yl)sulfanyl]acetamide chemical structure, C20H18N4O2S, CAS 380314-37-4](/s/ALEUTTNIZDFZSP-UHFFFAOYSA-N.svg)
N-(9-Ethylcarbazol-3-yl)-2-[(6-oxo-1H-pyrimidin-2-yl)sulfanyl]acetamide
CAS 380314-37-4C20H18N4O2S
![(4E)-2-(1,3-Benzothiazol-2-yl)-4-{[(3-hydroxypropyl)amino]methylidene}-5-phenyl-2,4-dihydro-3H-pyrazol-3-one chemical structure, C20H18N4O2S, CAS 337474-84-7](/s/BZUNBFKGDKCZLT-UHFFFAOYSA-N.svg)
(4E)-2-(1,3-Benzothiazol-2-yl)-4-{[(3-hydroxypropyl)amino]methylidene}-5-phenyl-2,4-dihydro-3H-pyrazol-3-one
CAS 337474-84-7C20H18N4O2S
4'-((3-Amino-9-acridinyl)amino)methanesulfonanilide
CAS 58658-27-8C20H18N4O2S
![1-(1,3-Benzothiazol-2-yl)-4-[(1E)-N-(2-hydroxyethyl)ethanimidoyl]-3-phenyl-1H-pyrazol-5-ol chemical structure, C20H18N4O2S, CAS 351163-15-0](/s/YTFXOQZTBUFMHP-UHFFFAOYSA-N.svg)
1-(1,3-Benzothiazol-2-yl)-4-[(1E)-N-(2-hydroxyethyl)ethanimidoyl]-3-phenyl-1H-pyrazol-5-ol
CAS 351163-15-0C20H18N4O2S
![2-[(3-Methyl-4-oxo-5H-pyrimido[5,4-b]indol-2-yl)sulfanyl]-N-(3-methylphenyl)acetamide chemical structure, C20H18N4O2S, CAS 537667-87-1](/s/OQNSLYNWVPIYQS-UHFFFAOYSA-N.svg)
2-[(3-Methyl-4-oxo-5H-pyrimido[5,4-b]indol-2-yl)sulfanyl]-N-(3-methylphenyl)acetamide
CAS 537667-87-1C20H18N4O2S
2-((4-Ethyl-5-(2-furyl)-4H-1,2,4-triazol-3-yl)thio)-N-(1-naphthyl)acetamide
CAS 618413-14-2C20H18N4O2S
3-Methyl-7-phenethyl-8-(phenylthio)-1H-purine-2,6(3H,7H)-dione
CAS 673443-13-5C20H18N4O2S
(E)-2-Cyano-N-(1,5-dimethyl-3-oxo-2-phenylpyrazol-4-yl)-3-(3-methylthiophen-2-yl)prop-2-enamide
CAS 1164527-11-0C20H18N4O2S
Methanesulfonanilide, 4'-((2-amino-9-acridinyl)amino)-
CAS 58658-24-5C20H18N4O2S
![N-(3-Methoxyphenyl)-3-{[1,2,4]triazolo[4,3-A]quinolin-1-ylsulfanyl}propanamide chemical structure, C20H18N4O2S, CAS 671199-29-4](/s/FMNCANHIGAHWSU-UHFFFAOYSA-N.svg)
N-(3-Methoxyphenyl)-3-{[1,2,4]triazolo[4,3-A]quinolin-1-ylsulfanyl}propanamide
CAS 671199-29-4C20H18N4O2S
![5-Morpholino-10,11-dihydrocyclopenta[4',5']thieno[2',3':4,5]pyrimido[2,1-a]phthalazin-8(9H)-one chemical structure, C20H18N4O2S, CAS 380453-55-4](/s/XTNMKCPXZCMVQE-UHFFFAOYSA-N.svg)
5-Morpholino-10,11-dihydrocyclopenta[4',5']thieno[2',3':4,5]pyrimido[2,1-a]phthalazin-8(9H)-one
CAS 380453-55-4C20H18N4O2S
Methanesulfonanilide, 4'-((4-amino-9-acridinyl)amino)-
CAS 61417-07-0C20H18N4O2S
Methanesulfonanilide, 4'-(9-acridinylamino)-3'-amino-
CAS 61417-10-5C20H18N4O2S
2-Amino-4-(4-methoxyphenyl)-6-((2-oxocyclohexyl)thio)pyridine-3,5-dicarbonitrile
CAS 328029-77-2C20H18N4O2S
![N-(4-Methoxyphenyl)-2-({4-methyl-[1,2,4]triazolo[4,3-A]quinolin-1-YL}sulfanyl)acetamide chemical structure, C20H18N4O2S, CAS 626205-45-6](/s/VFDFCQFVCKBHHN-UHFFFAOYSA-N.svg)
N-(4-Methoxyphenyl)-2-({4-methyl-[1,2,4]triazolo[4,3-A]quinolin-1-YL}sulfanyl)acetamide
CAS 626205-45-6C20H18N4O2S
![Methyl {[5-(2-phenylethyl)-5H-[1,2,4]triazino[5,6-b]indol-3-yl]sulfanyl}acetate chemical structure, C20H18N4O2S, CAS 404914-99-4](/s/ZWKRYTXNLAKCDM-UHFFFAOYSA-N.svg)
Methyl {[5-(2-phenylethyl)-5H-[1,2,4]triazino[5,6-b]indol-3-yl]sulfanyl}acetate
CAS 404914-99-4C20H18N4O2S
![N-(2-Methoxyphenyl)-2-({5-methyl-[1,2,4]triazolo[4,3-a]quinolin-1-yl}sulfanyl)acetamide chemical structure, C20H18N4O2S, CAS 446851-52-1](/s/FIXUFYHBFTYSII-UHFFFAOYSA-N.svg)
N-(2-Methoxyphenyl)-2-({5-methyl-[1,2,4]triazolo[4,3-a]quinolin-1-yl}sulfanyl)acetamide
CAS 446851-52-1C20H18N4O2S
1,7-Dibenzyl-8-mercapto-3-methyl-1H-purine-2,6(3H,7H)-dione
CAS 330990-54-0C20H18N4O2S
![6-[3-(Allyloxy)phenyl]-3-(methylsulfanyl)-6,7-dihydro[1,2,4]triazino[5,6-d][3,1]benzoxazepine chemical structure, C20H18N4O2S, CAS 354777-14-3](/s/KKOJOXQSQGVDJY-UHFFFAOYSA-N.svg)
6-[3-(Allyloxy)phenyl]-3-(methylsulfanyl)-6,7-dihydro[1,2,4]triazino[5,6-d][3,1]benzoxazepine
CAS 354777-14-3C20H18N4O2S
![Methyl 2-[(5-benzyl-5H-[1,2,4]triazino[5,6-b]indol-3-yl)sulfanyl]propanoate chemical structure, C20H18N4O2S, CAS 710983-29-2](/s/QJCQMROOWQQBSG-UHFFFAOYSA-N.svg)
Methyl 2-[(5-benzyl-5H-[1,2,4]triazino[5,6-b]indol-3-yl)sulfanyl]propanoate
CAS 710983-29-2C20H18N4O2S
4-Methyl-2-(1H-pyrrol-1-yl)-N-(2-(quinolin-8-yloxy)ethyl)thiazole-5-carboxamide
CAS 1207055-56-8C20H18N4O2S
Methanesulfonanilide, 4'-(9-acridinylamino)-2'-amino-
CAS 72739-00-5C20H18N4O2S
![N-Benzyl-2-[(3-methyl-4-oxo-5H-pyrimido[5,4-b]indol-2-yl)sulfanyl]acetamide chemical structure, C20H18N4O2S, CAS 537668-14-7](/s/IIEOJNRLSZAIMV-UHFFFAOYSA-N.svg)
N-Benzyl-2-[(3-methyl-4-oxo-5H-pyrimido[5,4-b]indol-2-yl)sulfanyl]acetamide
CAS 537668-14-7C20H18N4O2S
- Benzyl 2-((5-(1H-indol-3-yl)-4-methyl-4H-1,2,4-triazol-3-yl)thio)acetate852143-40-9C20H18N4O2S
- N-(3-Acetylphenyl)-2-((2-methyl-6-(pyridin-2-yl)pyrimidin-4-yl)thio)acetamide1251616-42-8C20H18N4O2S
- 6-(Benzylthio)-3-(3,4-dimethoxyphenyl)-[1,2,4]triazolo[4,3-b]pyridazine852437-85-5C20H18N4O2S
- N-(1-(Benzo[d]thiazol-2-yl)-3-methyl-1H-pyrazol-5-yl)-3-phenoxypropanamide1172418-83-5C20H18N4O2S
- 2-(4-Methoxyphenyl)-7-[(4-methylbenzyl)thio]pyrazolo[1,5-d][1,2,4]triazin-4(5H)-one946253-90-3C20H18N4O2S
- N-(4-Ethoxyphenyl)-2-{[1,2,4]triazolo[4,3-A]quinolin-1-ylsulfanyl}acetamide671199-09-0C20H18N4O2S
- N~2~-[4-(5-methoxy-1,2-dimethyl-1H-indol-3-yl)-1,3-thiazol-2-yl]-2-pyridinecarboxamide921042-85-5C20H18N4O2S
- 1-Allyl-3-(m-tolylsulfonyl)-1H-pyrrolo[2,3-b]quinoxalin-2-amine844465-29-8C20H18N4O2S
- N-(1-(Benzo[d]thiazol-2-yl)-3-methyl-1H-pyrazol-5-yl)-2-(4-methoxyphenyl)acetamide1171098-54-6C20H18N4O2S
- N-(6-((2-Oxo-2-(o-tolylamino)ethyl)thio)pyridazin-3-yl)benzamide1021090-25-4C20H18N4O2S
- 1-(2-Methoxyphenyl)-6-((1-phenylethyl)thio)-1H-pyrazolo[3,4-d]pyrimidin-4(5H)-one921475-69-6C20H18N4O2S
- N-(4-Methoxyphenyl)-2-((5-methyl-[1,2,4]triazolo[4,3-a]quinolin-1-yl)thio)acetamide483292-12-2C20H18N4O2S
- N-(4,7-Dimethylbenzo[d]thiazol-2-yl)-3-methyl-N-(pyridin-2-ylmethyl)isoxazole-5-carboxamide946228-51-9C20H18N4O2S
- N-(1-(Benzo[d]thiazol-2-yl)-3-methyl-1H-pyrazol-5-yl)-2-(o-tolyloxy)acetamide1172434-00-2C20H18N4O2S
- N-(6-((2-Oxo-2-(m-tolylamino)ethyl)thio)pyridazin-3-yl)benzamide1021075-33-1C20H18N4O2S
- 1-[6-(2-Methylphenyl)-3-methylsulfanyl-6H-[1,2,4]triazino[5,6-d][3,1]benzoxazepin-7-yl]ethanone6376-33-6C20H18N4O2S
- Phenyl[3-(propylsulfanyl)-6,7-dihydro[1,2,4]triazino[5,6-d][3,1]benzoxazepin-6-yl]methanone329218-84-0C20H18N4O2S
- 9-(4-Methoxyphenyl)-6-(thiophen-2-yl)-5,6,7,9-tetrahydro[1,2,4]triazolo[5,1-b]quinazolin-8(4H)-one727394-76-5C20H18N4O2S
- 7-Acetyl-6-(4-methylphenyl)-6,7-dihydro[1,2,4]triazino[5,6-d][3,1]benzoxazepin-3-yl methyl sulfide353518-10-2C20H18N4O2S
- 6-(4-Methoxyphenyl)-9-(thiophen-2-yl)-5,6,7,9-tetrahydro[1,2,4]triazolo[5,1-b]quinazolin-8(4H)-one727394-39-0C20H18N4O2S
- N-(3-Methoxyphenyl)-2-((5-methyl-[1,2,4]triazolo[4,3-a]quinolin-1-yl)thio)acetamide483970-54-3C20H18N4O2S
- N-[(E)-(2-Phenylmethoxyphenyl)methylideneamino]-2-pyrimidin-2-ylsulfanylacetamide339995-12-9C20H18N4O2S
- N-(3-Cyano-4,5,6,7-tetrahydro-1-benzothiophen-2-yl)-3-(4-oxoquinazolin-3-yl)propanamide663168-17-0C20H18N4O2S
- 1-Allyl-3-tosyl-1H-pyrrolo[2,3-b]quinoxalin-2-amine371200-52-1C20H18N4O2S
- 1-(3-Benzylsulfanyl-6-methyl-6H-[1,2,4]triazino[5,6-d][3,1]benzoxazepin-7-yl)ethanone486996-40-1C20H18N4O2S
- 1-Benzyl-5-oxo-N-[4-(pyridin-2-yl)-1,3-thiazol-2-yl]pyrrolidine-3-carboxamide924464-16-4C20H18N4O2S
- 5-(4-(4-Methylbenzoyl)piperazin-1-yl)-2-(thiophen-2-yl)oxazole-4-carbonitrile946200-72-2C20H18N4O2S
- 5-(4-(3-Methylbenzoyl)piperazin-1-yl)-2-(thiophen-2-yl)oxazole-4-carbonitrile946278-36-0C20H18N4O2S
- N-[3-(Pyridin-2-yl)-5-(1,2,3,4-tetrahydroisoquinoline-2-carbonyl)-1,2-thiazol-4-yl]acetamide1251633-38-1C20H18N4O2S
- 5-{[5-(3,4-Dimethylphenyl)-1,3,4-oxadiazol-2-yl]methyl}-3-[4-(methylsulfanyl)phenyl]-1,2,4-oxadiazole1251588-00-7C20H18N4O2S
- 7-Benzyl-3-methyl-8-(4-methylphenyl)sulfanylpurine-2,6-dione674330-57-5C20H18N4O2S
- 6-(1,3-Benzodioxol-5-yl)-3-(4-tert-butylphenyl)[1,2,4]triazolo[3,4-b][1,3,4]thiadiazole708282-74-0C20H18N4O2S
- 1,9-Dimethyl-N~2~-[2-(methylsulfanyl)phenyl]-4-oxo-1,4-dihydropyrido[1,2-A]pyrrolo[2,3-D]pyrimidine-2-carboxamide864855-52-7C20H18N4O2S
- N-(4-Acetamidophenyl)-2-((6-phenylpyridazin-3-yl)thio)acetamide872630-34-7C20H18N4O2S
- N-{5-[1-(4-Methylphenyl)-5-oxopyrrolidin-3-yl]-1,3,4-thiadiazol-2-yl}benzamide931375-52-9C20H18N4O2S
- 2-[2-(4-Methylphenyl)-4-oxopyrazolo[1,5-a]pyrazin-5(4H)-yl]-N-(2-thienylmethyl)acetamide941894-73-1C20H18N4O2S
- N-Benzyl-2-(7,9-dimethyl-4-oxopyrido[3',2':4,5]thieno[3,2-d]pyrimidin-3(4H)-yl)acetamide946323-26-8C20H18N4O2S
- N-[(Furan-2-yl)methyl]-2-{[2-(4-methylphenyl)pyrazolo[1,5-a]pyrazin-4-yl]sulfanyl}acetamide1021210-96-7C20H18N4O2S
- 2-(4-Methylphenyl)-5-[4-(thiophen-2-ylcarbonyl)piperazin-1-yl]-1,3-oxazole-4-carbonitrile946308-15-2C20H18N4O2S
- 2-(3-Methylphenyl)-5-[4-(thiophen-2-ylcarbonyl)piperazin-1-yl]-1,3-oxazole-4-carbonitrile946377-67-9C20H18N4O2S
- 5-(4-(2-Methylbenzoyl)piperazin-1-yl)-2-(thiophen-2-yl)oxazole-4-carbonitrile946309-09-7C20H18N4O2S
- 1-Benzyl-N-[(2E)-5-(methoxymethyl)-1,3,4-thiadiazol-2(3H)-ylidene]-1H-indole-6-carboxamide1219544-51-0C20H18N4O2S
- 2-[5-(Benzyloxy)-1H-indol-1-yl]-N-[(2Z)-5-methyl-1,3,4-thiadiazol-2(3H)-ylidene]acetamide1219559-82-6C20H18N4O2S
- 3-(5-Methoxy-1H-indol-1-yl)-N-(4-(pyridin-4-yl)thiazol-2-yl)propanamide1324063-95-7C20H18N4O2S
- 3-Methyl-7-[(4-methylphenyl)methyl]-8-phenylsulfanylpurine-2,6-dione674296-86-7C20H18N4O2S
- 2-{3-Oxo-5-sulfanylidene-2H,3H,5H,6H-imidazo[1,2-c]quinazolin-2-yl}-N-(2-phenylethyl)acetamide1024530-50-4C20H18N4O2S
- 1-(3,4-Dimethylphenyl)-3-[(5-phenyl-4H-1,2,4-triazol-3-yl)sulfanyl]pyrrolidine-2,5-dione674295-57-9C20H18N4O2S
- 6-Amino-3-(4-ethoxyphenyl)-4-(3-methylthiophen-2-yl)-2,4-dihydropyrano[2,3-c]pyrazole-5-carbonitrile664970-62-1C20H18N4O2S
- (2E)-4-(4-Ethoxyphenyl)-N-(2-methoxyanilino)-1,3-thiazole-2-carboximidoyl cyanide477188-75-3C20H18N4O2S
- (Z)-N-(1-(2-(Butylamino)-1-cyano-2-oxoethylidene)-1H-isoindol-3-yl)thiophene-2-carboxamide902050-63-9C20H18N4O2S
- 2-{[5-(2-Methoxyphenyl)-4H-1,2,4-triazol-3-yl]sulfanyl}-1-(2-methyl-1H-indol-3-yl)ethanone879585-12-3C20H18N4O2S
- 2-Ethoxy-N-(3-(3-methylimidazo[2,1-b]thiazol-6-yl)phenyl)nicotinamide893982-59-7C20H18N4O2S
- N-(3-Acetamidophenyl)-2-((6-phenylpyridazin-3-yl)thio)acetamide893989-38-3C20H18N4O2S
- 1-(4-(2-Methylindoline-1-carbonyl)thiazol-2-yl)-3-phenylurea955633-68-8C20H18N4O2S
- N-(5-Benzyl-1,3,4-thiadiazol-2-yl)-5-oxo-1-phenylpyrrolidine-3-carboxamide896915-64-3C20H18N4O2S
- 4-[4-(3,4-Dimethoxyphenyl)-1,3-thiazol-2-yl]-5-methyl-1-phenyl-1H-1,2,3-triazole1105199-45-8C20H18N4O2S
- 3-(4-Ethoxyphenyl)-5-{[(1-phenyl-1H-imidazol-2-yl)sulfanyl]methyl}-1,2,4-oxadiazole1112039-92-5C20H18N4O2S
- 4-[4-(2,5-Dimethoxyphenyl)-1,3-thiazol-2-yl]-5-methyl-1-phenyl-1H-1,2,3-triazole1206999-16-7C20H18N4O2S
- 3-(4-Methoxyphenyl)-5-(((1-(p-tolyl)-1H-imidazol-2-yl)thio)methyl)-1,2,4-oxadiazole1111982-66-1C20H18N4O2S
- 7-(2-Methoxyphenyl)-3-((2-methylbenzyl)thio)-[1,2,4]triazolo[4,3-a]pyrazin-8(7H)-one1242882-98-9C20H18N4O2S
- 7-(2-Methoxyphenyl)-3-((4-methylbenzyl)thio)-[1,2,4]triazolo[4,3-a]pyrazin-8(7H)-one1242886-86-7C20H18N4O2S
- 7-(3-Methoxyphenyl)-3-[(4-methylbenzyl)thio][1,2,4]triazolo[4,3-a]pyrazin-8(7H)-one1242914-46-0C20H18N4O2S
- 7-(3-Methoxyphenyl)-3-[(3-methylbenzyl)thio][1,2,4]triazolo[4,3-a]pyrazin-8(7H)-one1243049-43-5C20H18N4O2S
- 7-(3-Methoxyphenyl)-3-[(2-methylbenzyl)thio][1,2,4]triazolo[4,3-a]pyrazin-8(7H)-one1242906-99-5C20H18N4O2S
- N-[2-(1H-Indol-3-yl)ethyl]-2-[6-oxo-3-(2-thienyl)-1(6H)-pyridazinyl]acetamide1246051-12-6C20H18N4O2S
- 2-(4-Acetamido-1H-indol-1-yl)-N-(6-methylbenzo[d]thiazol-2-yl)acetamide1574528-23-6C20H18N4O2S
- 3-Methoxy-2-methyl-N-((2-(thiophen-2-yl)pyridin-3-yl)methyl)-2H-indazole-6-carboxamide2034576-92-4C20H18N4O2S
- 4-Ethyl-N-(4-imidazo[1,2-a]pyrimidin-2-ylphenyl)benzenesulfonamide724738-73-2C20H18N4O2S
- 4-(4-Methoxyphenyl)-1-[4-(4-methoxyphenyl)-1,3-thiazol-2-yl]-1H-pyrazol-5-amine956361-09-4C20H18N4O2S
- 1-(1,2-Dihydroacenaphthylen-5-yl)-N-(5-methyl-1,3,4-thiadiazol-2-yl)-5-oxopyrrolidine-3-carboxamide663200-33-7C20H18N4O2S
- N-Benzyl-3-{3-oxo-5-sulfanylidene-2H,3H,5H,6H-imidazo[1,2-c]quinazolin-2-yl}propanamide1028685-40-6C20H18N4O2S
- N-[(Furan-2-yl)methyl]-2-({2-methyl-5-phenylthieno[2,3-d]pyrimidin-4-yl}amino)acetamide920689-93-6C20H18N4O2S
- N-(5,7-Dimethylbenzo[d]thiazol-2-yl)-3-methyl-N-(pyridin-3-ylmethyl)isoxazole-5-carboxamide946285-37-6C20H18N4O2S
- N-Benzyl-N-(6-methoxybenzo[d]thiazol-2-yl)-1-methyl-1H-pyrazole-5-carboxamide1170909-69-9C20H18N4O2S
- N-{4-[(2Z)-1,3-benzothiazol-2(3H)-ylideneamino]-4-oxobutyl}-1H-indole-2-carboxamide1010885-75-2C20H18N4O2S
- 2-{11,13-Dimethyl-6-oxo-8-thia-3,5,10-triazatricyclo[7.4.0.0^{2,7}]trideca-1(9),2(7),3,10,12-pentaen-5-yl}-N-(4-methylphenyl)acetamide946385-20-2C20H18N4O2S
Frequently asked questions
What is the molar mass of C20H18N4O2S?
The molar mass of C20H18N4O2S is 378.45 g/mol, calculated from standard atomic weights for 20 carbon atoms, 18 hydrogen atoms, 4 nitrogen atoms, 2 oxygen atoms and 1 sulfur atom. The monoisotopic mass is 378.1150 Da.
How many compounds have the formula C20H18N4O2S?
CompoundList lists 189 compounds with the molecular formula C20H18N4O2S, including 2-[(3-Methyl-4-oxo-5H-pyrimido[5,4-b]indol-2-yl)thio]-N-(4-methylphenyl)acetamide, N-(9-Ethylcarbazol-3-yl)-2-[(6-oxo-1H-pyrimidin-2-yl)sulfanyl]acetamide, (4E)-2-(1,3-Benzothiazol-2-yl)-4-{[(3-hydroxypropyl)amino]methylidene}-5-phenyl-2,4-dihydro-3H-pyrazol-3-one. 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 C20H18N4O2S?
C20H18N4O2S 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.