Molecular formula
C18H20N4OS
187 compounds have this formula on CompoundList.
- Molar mass
- 340.44g/mol
- Monoisotopic mass
- 340.1358Da
- Atoms
- 44
- Elements
- 5
- Rings plus double bonds
- 11
The formula C18H20N4OS describes a molecule made of 18 carbon atoms, 20 hydrogen atoms, 4 nitrogen atoms, 1 oxygen atom 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 × 1863.50%12.011 × 18 = 216.198 g/mol
- H Hydrogen × 205.92%1.008 × 20 = 20.160 g/mol
- N Nitrogen × 416.46%14.007 × 4 = 56.028 g/mol
- O Oxygen × 14.70%15.999 × 1 = 15.999 g/mol
- S Sulfur × 19.42%32.06 × 1 = 32.060 g/mol
Look up another formula
Compounds with the formula C18H20N4OS
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 100 of 187 compounds
![6-Amino-3-[(4-methylphenyl)sulfanylmethyl]-4-propan-2-yl-2,4-dihydropyrano[2,3-c]pyrazole-5-carbonitrile chemical structure, C18H20N4OS, CAS 445391-07-1](/s/MMNGIZQBYVHSDD-UHFFFAOYSA-N.svg)
6-Amino-3-[(4-methylphenyl)sulfanylmethyl]-4-propan-2-yl-2,4-dihydropyrano[2,3-c]pyrazole-5-carbonitrile
CAS 445391-07-1C18H20N4OS
1-(5,5-Dimethyl-4H-1,3-thiazol-2-yl)-1-(4-methylpyridin-2-yl)-3-phenylurea
CAS 340032-75-9C18H20N4OS
N-(3-Acetylphenyl)-4-pyridin-2-ylpiperazine-1-carbothioamide
CAS 708234-38-2C18H20N4OS
![3-[3-[Benzyl(methyl)amino]propyl]-2-sulfanylidene-1H-pyrido[2,3-d]pyrimidin-4-one chemical structure, C18H20N4OS, CAS 688793-35-3](/s/LPKPRUUZRSXKER-UHFFFAOYSA-N.svg)
3-[3-[Benzyl(methyl)amino]propyl]-2-sulfanylidene-1H-pyrido[2,3-d]pyrimidin-4-one
CAS 688793-35-3C18H20N4OS
![1-(1-Benzylpyrazolo[3,4-d]pyrimidin-4-yl)sulfanyl-3,3-dimethylbutan-2-one chemical structure, C18H20N4OS, CAS 850899-73-9](/s/VIQHQHLLIXYAPB-UHFFFAOYSA-N.svg)
1-(1-Benzylpyrazolo[3,4-d]pyrimidin-4-yl)sulfanyl-3,3-dimethylbutan-2-one
CAS 850899-73-9C18H20N4OS
![3-[3-(N-Ethylanilino)propyl]-2-sulfanylidene-1H-pyrido[2,3-d]pyrimidin-4-one chemical structure, C18H20N4OS, CAS 688793-27-3](/s/UDTXNKWLXXEPRP-UHFFFAOYSA-N.svg)
3-[3-(N-Ethylanilino)propyl]-2-sulfanylidene-1H-pyrido[2,3-d]pyrimidin-4-one
CAS 688793-27-3C18H20N4OS
5-((2,6-Dimethylpyrimidin-4-yl)methyl)-8-thia-4,6-diazatricyclo(7.5.0.0,2,7)tetradeca-1(9),2(7),5-trien-3-one
CAS 1445134-76-8C18H20N4OS
![3-(2,5-Dimethyl-benzylsulfanyl)-5-(4-methoxy-phenyl)-[1,2,4]triazol-4-ylamine chemical structure, C18H20N4OS, CAS 677302-01-1](/s/BVOUSBMZAMQNCB-UHFFFAOYSA-N.svg)
3-(2,5-Dimethyl-benzylsulfanyl)-5-(4-methoxy-phenyl)-[1,2,4]triazol-4-ylamine
CAS 677302-01-1C18H20N4OS
![6-Amino-3-(tert-butyl)-4-[4-(methylsulfanyl)phenyl]-1,4-dihydropyrano[2,3-c]pyrazole-5-carbonitrile chemical structure, C18H20N4OS, CAS 328261-37-6](/s/FZSRDQZVZNMNIL-UHFFFAOYSA-N.svg)
6-Amino-3-(tert-butyl)-4-[4-(methylsulfanyl)phenyl]-1,4-dihydropyrano[2,3-c]pyrazole-5-carbonitrile
CAS 328261-37-6C18H20N4OS
![2-[4-(5-Phenylthieno[2,3-d]pyrimidin-4-yl)piperazin-1-yl]ethanol chemical structure, C18H20N4OS, CAS 327980-21-2](/s/KCPKAUHXKMSFDS-UHFFFAOYSA-N.svg)
2-[4-(5-Phenylthieno[2,3-d]pyrimidin-4-yl)piperazin-1-yl]ethanol
CAS 327980-21-2C18H20N4OS
![N-(4-tert-Butylphenyl)-2-{[1,2,4]triazolo[4,3-a]pyridin-3-ylsulfanyl}acetamide chemical structure, C18H20N4OS, CAS 379239-53-9](/s/XPRJZWODHXANKH-UHFFFAOYSA-N.svg)
N-(4-tert-Butylphenyl)-2-{[1,2,4]triazolo[4,3-a]pyridin-3-ylsulfanyl}acetamide
CAS 379239-53-9C18H20N4OS
2-(1,2-Dihydro-2-oxo-1-(2-propenyl)-3H-indol-3-ylidene)-N,N-di-2-propenylhydrazinecarbothioamide
CAS 152128-80-8C18H20N4OS
![6-(Piperidin-1-yl)-17-thia-2,7,8-triazatetracyclo[8.7.0.0^{3,8}.0^{11,16}]heptadeca-1(10),2,4,6,11(16)-pentaen-9-one chemical structure, C18H20N4OS, CAS 380547-63-7](/s/NITQUTWJBCNONN-UHFFFAOYSA-N.svg)
6-(Piperidin-1-yl)-17-thia-2,7,8-triazatetracyclo[8.7.0.0^{3,8}.0^{11,16}]heptadeca-1(10),2,4,6,11(16)-pentaen-9-one
CAS 380547-63-7C18H20N4OS
1-(Indolin-1-yl)-2-((6-(pyrrolidin-1-yl)pyrimidin-4-yl)thio)ethanone
CAS 1170367-91-5C18H20N4OS
![1-(Azepan-1-yl)-2-{[1,2,4]triazolo[4,3-a]quinolin-1-ylsulfanyl}ethan-1-one chemical structure, C18H20N4OS, CAS 692284-78-9](/s/ZVPSGGSVFUPOIZ-UHFFFAOYSA-N.svg)
1-(Azepan-1-yl)-2-{[1,2,4]triazolo[4,3-a]quinolin-1-ylsulfanyl}ethan-1-one
CAS 692284-78-9C18H20N4OS
![(4-((1-Methyl-1H-benzo[d]imidazol-2-yl)methyl)piperazin-1-yl)(thiophen-2-yl)methanone chemical structure, C18H20N4OS, CAS 1172341-53-5](/s/IEQRJSPWWWNEHT-UHFFFAOYSA-N.svg)
(4-((1-Methyl-1H-benzo[d]imidazol-2-yl)methyl)piperazin-1-yl)(thiophen-2-yl)methanone
CAS 1172341-53-5C18H20N4OS
2-(2-(2-(3,5-Dimethylphenylamino)pyrimidin-4-yl)-4-methylthiazol-5-yl)ethanol
CAS 774229-25-3C18H20N4OS
![1-[5-(4-Methoxyphenyl)thieno[2,3-d]pyrimidin-4-yl]-4-methylpiperazine chemical structure, C18H20N4OS, CAS 345615-33-0](/s/OKBIKESTGYNDLW-UHFFFAOYSA-N.svg)
1-[5-(4-Methoxyphenyl)thieno[2,3-d]pyrimidin-4-yl]-4-methylpiperazine
CAS 345615-33-0C18H20N4OS
2-((4,6-Dimethylpyrimidin-2-yl)thio)-N'-((E)-2-methyl-3-phenylallylidene)acetohydrazide
CAS 1164554-58-8C18H20N4OS
![4-(Dimethylamino)-N'-(4,5-dimethylbenzo[d]thiazol-2-yl)benzohydrazide chemical structure, C18H20N4OS, CAS 851980-66-0](/s/VUYFIRAJQCLWLS-UHFFFAOYSA-N.svg)
4-(Dimethylamino)-N'-(4,5-dimethylbenzo[d]thiazol-2-yl)benzohydrazide
CAS 851980-66-0C18H20N4OS
3-(2,4-Dimethylthiazol-5-yl)-N-(4-ethylbenzyl)-1H-pyrazole-5-carboxamide
CAS 1186616-23-8C18H20N4OS
![N-(2-(1H-Pyrazol-1-yl)ethyl)-N-(4,6-dimethylbenzo[d]thiazol-2-yl)cyclopropanecarboxamide chemical structure, C18H20N4OS, CAS 1171906-51-6](/s/KIRFLTQFPIBPIY-UHFFFAOYSA-N.svg)
N-(2-(1H-Pyrazol-1-yl)ethyl)-N-(4,6-dimethylbenzo[d]thiazol-2-yl)cyclopropanecarboxamide
CAS 1171906-51-6C18H20N4OS
![N-(1-(Benzo[d]thiazol-2-yl)-3-methyl-1H-pyrazol-5-yl)cyclohexanecarboxamide chemical structure, C18H20N4OS, CAS 1171609-01-0](/s/HJOPLBQJTRQPAY-UHFFFAOYSA-N.svg)
N-(1-(Benzo[d]thiazol-2-yl)-3-methyl-1H-pyrazol-5-yl)cyclohexanecarboxamide
CAS 1171609-01-0C18H20N4OS
Ethanone, 1-(5-(4-methyl-1-piperazinyl)-10H-thieno(2,3-b)(1,4)benzodiazepin-2-yl)-
CAS 74162-56-4C18H20N4OS
- N-(2-Methyl-2,6-dihydro-4H-thieno[3,4-c]pyrazol-3-yl)-3-(4-methyl-1H-indol-1-yl)propanamide1282115-67-6C18H20N4OS
- N-[Cyano-(1-phenylpyrazol-4-yl)methyl]-2-(thian-4-yl)acetamide1465398-36-0C18H20N4OS
- 9-(4-Ethylphenyl)-2-(methylsulfanyl)-5,6,7,9-tetrahydro[1,2,4]triazolo[5,1-b]quinazolin-8(4H)-one727395-15-5C18H20N4OS
- 2-(Ethylsulfanyl)-9-(4-methylphenyl)-5,6,7,9-tetrahydro[1,2,4]triazolo[5,1-b]quinazolin-8(4H)-one727395-53-1C18H20N4OS
- 2-(Ethylsulfanyl)-9-(2-methylphenyl)-5,6,7,9-tetrahydro[1,2,4]triazolo[5,1-b]quinazolin-8(4H)-one727401-88-9C18H20N4OS
- 6,6-Dimethyl-2-(methylsulfanyl)-9-phenyl-5,6,7,9-tetrahydro[1,2,4]triazolo[5,1-b]quinazolin-8(4H)-one558474-25-2C18H20N4OS
- 2'-Amino-1,7',9'-trimethylspiro[piperidine-4,4'-pyrano[2',3':4,5]thieno[2,3-b]pyridine]-3'-carbonitrile625375-31-7C18H20N4OS
- 8,8-Dimethyl-4-(pyrrolidin-1-yl)-7,10-dihydro-8H-pyrano[3'',4'':5',6']pyrido[3',2':4,5]thieno[3,2-d]pyrimidine364381-26-0C18H20N4OS
- N-Allyl-2,8,8-trimethyl-8,10-dihydro-7H-pyrano[3'',4'':5',6']pyrido[3',2':4,5]thieno[3,2-d]pyrimidin-4-amine375832-64-7C18H20N4OS
- 2-(Ethylsulfanyl)-9-(3-methylphenyl)-5,6,7,9-tetrahydro[1,2,4]triazolo[5,1-b]quinazolin-8(4H)-one727395-65-5C18H20N4OS
- 1 suppliersOlanzapine LIP 1 Acetyl935272-10-9C18H20N4OS
- (4-(Benzo[d]thiazol-2-yl)piperidin-1-yl)(1,5-dimethyl-1H-pyrazol-3-yl)methanone1014091-98-5C18H20N4OS
- 5-(Piperidin-1-yl)-1,2,3,4-tetrahydropyrimido[4',5':4,5]thieno[2,3-c]isoquinolin-8(9H)-one370573-35-6C18H20N4OS
- 5-[2-(3,4-Dimethylphenoxy)ethylsulfanyl]-1-(4-methylphenyl)tetrazole313961-25-0C18H20N4OS
- N,N-Diethyl-4-[(6-methoxy-1,3-benzothiazol-2-yl)diazenyl]aniline13443-90-8C18H20N4OS
- 4-(Dimethylamino)-N'-(4,6-dimethylbenzo[d]thiazol-2-yl)benzohydrazide851987-40-1C18H20N4OS
- 2,4-Dihydro-4-methyl-2-(4-morpholinylmethyl)-5-(1-naphthalenyl)-3H-1,2,4-triazole-3-thione354128-85-1C18H20N4OS
- 4-(1H-Benzo[d]imidazol-2-yl)-N-(thiophen-2-ylmethyl)piperidine-1-carboxamide1203222-94-9C18H20N4OS
- N-((1-(3-Cyanopyridin-2-yl)piperidin-4-yl)methyl)-2-(thiophen-2-yl)acetamide1797123-96-6C18H20N4OS
- Imidazo(1,2-a)pyrimidine, 2-(p-methylthiophenyl)-3-(morpholinomethyl)-3458-59-1C18H20N4OS
- 5-Methyl[1,2,4]triazolo[4,3-a]quinolin-1-yl 2-oxo-2-piperidin-1-ylethyl sulfide335389-99-6C18H20N4OS
- 1-[1-(1H-Benzimidazol-2-yl)-3-(methylsulfanyl)propyl]-3-phenylurea748778-99-6C18H20N4OS
- (4-(Benzo[d]thiazol-2-yl)piperidin-1-yl)(1,3-dimethyl-1H-pyrazol-5-yl)methanone1014072-11-7C18H20N4OS
- 3-Methyl-N-(3-methyl-1-(4-phenylthiazol-2-yl)-1H-pyrazol-5-yl)butanamide1020488-11-2C18H20N4OS
- 5-Benzyl-N-[3-(1H-imidazol-1-yl)propyl]-2-methyl-1,3-thiazole-4-carboxamide1574406-34-0C18H20N4OS
- 2-[(4,7-Dimethyl-1,3-benzothiazol-2-yl)(methyl)amino]-N-[(pyridin-2-yl)methyl]acetamide1351644-05-7C18H20N4OS
- 3-(Dimethylamino)-N-{2-[3-(thiophen-2-yl)-1H-pyrazol-1-yl]ethyl}benzamide1797679-18-5C18H20N4OS
- 2-(1H-Indol-1-yl)-N-(1-(thiazol-2-yl)piperidin-4-yl)acetamide1448070-48-1C18H20N4OS
- 2-(1-Methyl-1H-indol-3-yl)-N-(1-(thiazol-2-yl)pyrrolidin-3-yl)acetamide1797320-72-9C18H20N4OS
- 5-[3-(Methylethoxy)phenyl]-3-(phenylmethylthio)-1,2,4-triazole-4-ylamine677015-48-4C18H20N4OS
- 5-(3-Ethoxyphenyl)-3-[(4-methylphenyl)methylthio]-1,2,4-triazole-4-ylamine678554-94-4C18H20N4OS
- 5-(4-Ethoxyphenyl)-3-[(4-methylphenyl)methylthio]-1,2,4-triazole-4-ylamine676641-89-7C18H20N4OS
- 5-(4-Ethoxyphenyl)-3-[(2-methylphenyl)methylthio]-1,2,4-triazole-4-ylamine678540-64-2C18H20N4OS
- 1-(1-Ethyl-2,5-dimethyl-1H-pyrrol-3-yl)-2-((1-phenyl-1H-1,2,4-triazol-3-yl)thio)ethanone925624-48-2C18H20N4OS
- 1-(3-Methoxyphenyl)-3-(1-propyl-1H-benzimidazol-2-yl)thiourea669734-48-9C18H20N4OS
- N-(3-Methyl-1-(4-phenylthiazol-2-yl)-1H-pyrazol-5-yl)pivalamide1020488-07-6C18H20N4OS
- 1-(5,6-Dimethylthieno[2,3-d]pyrimidin-4-yl)-4-pyridin-2-ylpiperidin-4-ol1269036-25-0C18H20N4OS
- (2-(tert-Butyl)-3-(1H-pyrrol-1-yl)pyrrolo[3,4-c]pyrazol-5(2H,4H,6H)-yl)(thiophen-2-yl)methanone1251685-65-0C18H20N4OS
- N-(5-Cyclohexyl-1,3,4-thiadiazol-2-yl)-2-(1H-indol-1-yl)acetamide1282099-83-5C18H20N4OS
- 1-(3-(2-Phenyl-1H-imidazol-1-yl)propyl)-3-(thiophen-2-ylmethyl)urea1421471-92-2C18H20N4OS
- 2-((4,7-Dimethylbenzo[d]thiazol-2-yl)(methyl)amino)-N-(pyridin-3-ylmethyl)acetamide1351646-98-4C18H20N4OS
- 1-(2-(1-Methyl-4-(thiophen-2-yl)-1H-imidazol-2-yl)ethyl)-3-(o-tolyl)urea1396637-96-9C18H20N4OS
- N-(2-(2-(3,5-Dimethyl-1H-pyrazol-1-yl)thiazol-4-yl)ethyl)-2-methylbenzamide1421481-32-4C18H20N4OS
- N-(2-(2-(1H-Pyrazol-1-yl)thiazol-4-yl)ethyl)-2-phenylbutanamide1428357-78-1C18H20N4OS
- N-[[4-(Morpholin-4-ylmethyl)phenyl]methyl]thieno[2,3-d]pyrimidin-4-amine924167-07-7C18H20N4OS
- (2-(1-Methyl-1H-indol-2-yl)thiazol-4-yl)(4-methylpiperazin-1-yl)methanone1172228-08-8C18H20N4OS
- 2-(Cyclopropylamino)-N-[2-(1H-indol-3-yl)ethyl]-4-methyl-1,3-thiazole-5-carboxamide1190280-02-4C18H20N4OS
- N-(2-(Thiophen-2-yl)ethyl)-6-(3,4,5-trimethyl-1H-pyrazol-1-yl)nicotinamide1251691-64-1C18H20N4OS
- 4-Butyl-N-(pyridin-2-ylmethyl)-2-(1H-pyrrol-1-yl)-1,3-thiazole-5-carboxamide1246063-41-1C18H20N4OS
- 4-Butyl-N-(pyridin-3-ylmethyl)-2-(1H-pyrrol-1-yl)-1,3-thiazole-5-carboxamide1246076-47-0C18H20N4OS
- 4-Butyl-N-(pyridin-4-ylmethyl)-2-(1H-pyrrol-1-yl)-1,3-thiazole-5-carboxamide1246044-80-3C18H20N4OS
- N-(1-Cyanocycloheptyl)-2-(phthalazin-1-ylsulfanyl)acetamide1252323-68-4C18H20N4OS
- N-(1-Cyanocyclopentyl)-2-{[3-(4-methyl-1,3-thiazol-2-yl)phenyl]amino}acetamide1333950-95-0C18H20N4OS
- N-[4-(3,5-Dimethyl-1H-pyrazol-1-yl)phenyl]-4-ethyl-2-methyl-1,3-thiazole-5-carboxamide1374540-16-5C18H20N4OS
- N-(4,5-Dimethyl-1H-pyrazol-3-yl)-6-(tetrahydro-3-furanylthio)-4-quinolinamine1357795-96-0C18H20N4OS
- N-(2-(2-(3,5-Dimethyl-1H-pyrazol-1-yl)thiazol-4-yl)ethyl)-2-phenylacetamide1421505-26-1C18H20N4OS
- N-[4-[(N-Cyano-3-ethylanilino)methyl]-1,3-thiazol-2-yl]-N-cyclopropylacetamide1436225-67-0C18H20N4OS
- N-[(2-Phenyl-1,3-thiazol-4-yl)methyl]-4-(prop-2-yn-1-yl)piperazine-1-carboxamide1797361-28-4C18H20N4OS
- 3-(4-Cyanophenyl)-N-((1-(thiazol-2-yl)pyrrolidin-2-yl)methyl)propanamide1798461-54-7C18H20N4OS
- 2-(1H-Indol-1-yl)-N-((1-(thiazol-2-yl)pyrrolidin-2-yl)methyl)acetamide1795086-61-1C18H20N4OS
- 2-(1H-Indol-3-yl)-N-((1-(thiazol-2-yl)pyrrolidin-2-yl)methyl)acetamide1705743-98-1C18H20N4OS
- N-((1-(Thiazol-2-yl)piperidin-3-yl)methyl)-1H-indole-5-carboxamide1795418-50-6C18H20N4OS
- N-((1-(Thiazol-2-yl)piperidin-3-yl)methyl)-1H-indole-2-carboxamide1705883-71-1C18H20N4OS
- 1-{4-Methyl-2,3,7,11-tetraazatricyclo[7.4.0.0^{2,6}]trideca-1(9),3,5,7-tetraen-11-yl}-3-(3-methylthiophen-2-yl)propan-1-one1706291-23-7C18H20N4OS
- N-(3-Methyl-1-(2H-1,2,3-triazol-2-yl)butan-2-yl)-4-(thiophen-3-yl)benzamide2034561-11-8C18H20N4OS
- N-[3-Methyl-1-(2H-1,2,3-triazol-2-yl)butan-2-yl]-4-(thiophen-2-yl)benzamide2034561-20-9C18H20N4OS
- 4-Methoxy-7-methyl-2-[4-(pyridin-2-yl)piperazin-1-yl]-1,3-benzothiazole2327269-40-7C18H20N4OS
- (2,4-Dimethylthiazol-5-yl)(3-(2-methyl-1H-benzo[d]imidazol-1-yl)pyrrolidin-1-yl)methanone2034514-70-8C18H20N4OS
- 1-(2-(3,5-Dimethyl-4-(thiophen-3-yl)-1H-pyrazol-1-yl)ethyl)-3-phenylurea2034556-54-0C18H20N4OS
- N-[3-Methyl-1-(1H-1,2,3-triazol-1-yl)butan-2-yl]-4-(thiophen-2-yl)benzamide2034229-36-0C18H20N4OS
- N-{[5-(1-Methyl-1H-pyrazol-5-yl)pyridin-3-yl]methyl}-3-(3-methylthiophen-2-yl)propanamide2178771-44-1C18H20N4OS
- 2-(1H-1,3-Benzodiazol-1-yl)-N-{1-[(thiophen-3-yl)methyl]pyrrolidin-3-yl}acetamide2097923-90-3C18H20N4OS
- N-{[6-(1-Methyl-1H-pyrazol-5-yl)pyridin-3-yl]methyl}-3-(3-methylthiophen-2-yl)propanamide2192746-61-3C18H20N4OS
- 4-Methyl-2-propyl-N-{[4-(1H-pyrazol-1-yl)phenyl]methyl}-1,3-thiazole-5-carboxamide2172104-19-5C18H20N4OS
- N-(1-Cyanocyclopentyl)-2-[(1-methyl-5-phenyl-1H-imidazol-2-yl)sulfanyl]acetamide923838-86-2C18H20N4OS
- (1-(Benzo[d]thiazol-2-yl)-5-isopropyl-1H-pyrazol-3-yl)(pyrrolidin-1-yl)methanone1013805-08-7C18H20N4OS
Frequently asked questions
What is the molar mass of C18H20N4OS?
The molar mass of C18H20N4OS is 340.44 g/mol, calculated from standard atomic weights for 18 carbon atoms, 20 hydrogen atoms, 4 nitrogen atoms, 1 oxygen atom and 1 sulfur atom. The monoisotopic mass is 340.1358 Da.
How many compounds have the formula C18H20N4OS?
CompoundList lists 187 compounds with the molecular formula C18H20N4OS, including 6-Amino-3-[(4-methylphenyl)sulfanylmethyl]-4-propan-2-yl-2,4-dihydropyrano[2,3-c]pyrazole-5-carbonitrile, 1-(5,5-Dimethyl-4H-1,3-thiazol-2-yl)-1-(4-methylpyridin-2-yl)-3-phenylurea, N-(3-Acetylphenyl)-4-pyridin-2-ylpiperazine-1-carbothioamide. 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 C18H20N4OS?
C18H20N4OS has a degree of unsaturation of 11. 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.