Molecular formula
C18H15N5O2S
88 compounds have this formula on CompoundList.
- Molar mass
- 365.41g/mol
- Monoisotopic mass
- 365.0946Da
- Atoms
- 41
- Elements
- 5
- Rings plus double bonds
- 14
The formula C18H15N5O2S describes a molecule made of 18 carbon atoms, 15 hydrogen atoms, 5 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 × 1859.17%12.011 × 18 = 216.198 g/mol
- H Hydrogen × 154.14%1.008 × 15 = 15.120 g/mol
- N Nitrogen × 519.17%14.007 × 5 = 70.035 g/mol
- O Oxygen × 28.76%15.999 × 2 = 31.998 g/mol
- S Sulfur × 18.77%32.06 × 1 = 32.060 g/mol
Look up another formula
Compounds with the formula C18H15N5O2S
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 88 of 88 compounds
![N-(2-Furanylmethyl)-2-[(3-phenyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)thio]acetamide chemical structure, C18H15N5O2S, CAS 852372-71-5](/s/SJXMINDUMZWKMI-UHFFFAOYSA-N.svg)
N-(2-Furanylmethyl)-2-[(3-phenyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)thio]acetamide
CAS 852372-71-5C18H15N5O2S
2-(3-Benzyl-2-methyl-5-nitro-3H-imidazol-4-ylsulfanyl)-1H-benzoimidazole
CAS 337339-49-8C18H15N5O2S
![1-(3-Methylsulfanyl-6-pyridin-2-yl-6H-[1,2,4]triazino[5,6-d][3,1]benzoxazepin-7-yl)ethanone chemical structure, C18H15N5O2S, CAS 353518-48-6](/s/UHCQEWLKHYSNDX-UHFFFAOYSA-N.svg)
1-(3-Methylsulfanyl-6-pyridin-2-yl-6H-[1,2,4]triazino[5,6-d][3,1]benzoxazepin-7-yl)ethanone
CAS 353518-48-6C18H15N5O2S
![1-(2-Furylmethyl)-2-imino-8-methyl-5-oxo-1,5-dihydro-2H-dipyrido[1,2-A:2,3-D]pyrimidine-3-carbothioamide chemical structure, C18H15N5O2S, CAS 618077-90-0](/s/KMAFBTUXTREYLR-UHFFFAOYSA-N.svg)
1-(2-Furylmethyl)-2-imino-8-methyl-5-oxo-1,5-dihydro-2H-dipyrido[1,2-A:2,3-D]pyrimidine-3-carbothioamide
CAS 618077-90-0C18H15N5O2S
N-(2-Methoxy-phenyl)-2-(9H-1,3,4,9-tetraaza-fluoren-2-ylsulfanyl)-acetamide
CAS 332176-64-4C18H15N5O2S
![4-Methyl-N-[4-([1,2,4]triazolo[4,3-b]pyridazin-6-yl)phenyl]benzenesulfonamide chemical structure, C18H15N5O2S, CAS 894069-57-9](/s/DXFWJJMXWYQTIM-UHFFFAOYSA-N.svg)
4-Methyl-N-[4-([1,2,4]triazolo[4,3-b]pyridazin-6-yl)phenyl]benzenesulfonamide
CAS 894069-57-9C18H15N5O2S
5-(3-ME-PH)-4-((3-(2-Nitro-PH)-2-propenylidene)amino)-4H-1,2,4-triazole-3-thiol
CAS 478256-33-6C18H15N5O2S
![3-Methyl-N-[4-([1,2,4]triazolo[4,3-b]pyridazin-6-yl)phenyl]benzenesulfonamide chemical structure, C18H15N5O2S, CAS 894069-31-9](/s/XHTFHKDZPJZONU-UHFFFAOYSA-N.svg)
3-Methyl-N-[4-([1,2,4]triazolo[4,3-b]pyridazin-6-yl)phenyl]benzenesulfonamide
CAS 894069-31-9C18H15N5O2S
![N-(4-{3-Methyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl}phenyl)benzenesulfonamide chemical structure, C18H15N5O2S, CAS 894984-26-0](/s/WLTIYWWLDKLWRY-UHFFFAOYSA-N.svg)
N-(4-{3-Methyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl}phenyl)benzenesulfonamide
CAS 894984-26-0C18H15N5O2S
N-(4-Methoxy-phenyl)-2-(9H-1,3,4,9-tetraaza-fluoren-2-ylsulfanyl)-acetamide
CAS 310418-20-3C18H15N5O2S
2-(1,3-Benzothiazol-2-ylamino)-6-oxo-N-phenyl-1,4,5,6-tetrahydropyrimidine-4-carboxamide
CAS 473803-60-0C18H15N5O2S
![2-[[4-(4-Methoxyphenyl)-5-sulfanylidene-1H-1,2,4-triazol-3-yl]methyl]phthalazin-1-one chemical structure, C18H15N5O2S, CAS 696650-44-9](/s/CMKHWWKMFIZNGP-UHFFFAOYSA-N.svg)
2-[[4-(4-Methoxyphenyl)-5-sulfanylidene-1H-1,2,4-triazol-3-yl]methyl]phthalazin-1-one
CAS 696650-44-9C18H15N5O2S
![1-(3-Methylsulfanyl-6-pyridin-3-yl-6H-[1,2,4]triazino[5,6-d][3,1]benzoxazepin-7-yl)ethanone chemical structure, C18H15N5O2S, CAS 353518-55-5](/s/UVOMDXNIPQWNHW-UHFFFAOYSA-N.svg)
1-(3-Methylsulfanyl-6-pyridin-3-yl-6H-[1,2,4]triazino[5,6-d][3,1]benzoxazepin-7-yl)ethanone
CAS 353518-55-5C18H15N5O2S
![Ethyl 5-amino-1-(6-phenylthieno[2,3-d]pyrimidin-4-yl)-1H-pyrazole-4-carboxylate chemical structure, C18H15N5O2S, CAS 379256-55-0](/s/PMULOBMDBNPUAM-UHFFFAOYSA-N.svg)
Ethyl 5-amino-1-(6-phenylthieno[2,3-d]pyrimidin-4-yl)-1H-pyrazole-4-carboxylate
CAS 379256-55-0C18H15N5O2S
![(E)-4-(2-(6-Methoxybenzo[d]thiazol-2-yl)hydrazono)-3-methyl-1-phenyl-1H-pyrazol-5(4H)-one chemical structure, C18H15N5O2S, CAS 303793-41-1](/s/WETZDXAQEFUQFE-UHFFFAOYSA-N.svg)
(E)-4-(2-(6-Methoxybenzo[d]thiazol-2-yl)hydrazono)-3-methyl-1-phenyl-1H-pyrazol-5(4H)-one
CAS 303793-41-1C18H15N5O2S
![N-((1H-Benzo[d]imidazol-2-yl)methyl)-2-(6-oxo-4-(thiophen-2-yl)pyrimidin-1(6H)-yl)acetamide chemical structure, C18H15N5O2S, CAS 1251697-02-5](/s/UZBBMNXNSYCGRT-UHFFFAOYSA-N.svg)
N-((1H-Benzo[d]imidazol-2-yl)methyl)-2-(6-oxo-4-(thiophen-2-yl)pyrimidin-1(6H)-yl)acetamide
CAS 1251697-02-5C18H15N5O2S
![N-(1-(2-Hydroxyethyl)-3-phenyl-1H-pyrazol-5-yl)benzo[c][1,2,5]thiadiazole-5-carboxamide chemical structure, C18H15N5O2S, CAS 1226433-49-3](/s/XXBYFQGJIIVBAS-UHFFFAOYSA-N.svg)
N-(1-(2-Hydroxyethyl)-3-phenyl-1H-pyrazol-5-yl)benzo[c][1,2,5]thiadiazole-5-carboxamide
CAS 1226433-49-3C18H15N5O2S
![1-(4-Methoxyphenyl)-6-((pyridin-2-ylmethyl)thio)-1H-pyrazolo[3,4-d]pyrimidin-4-ol chemical structure, C18H15N5O2S, CAS 922107-53-7](/s/MTQFSEDUROUSMD-UHFFFAOYSA-N.svg)
1-(4-Methoxyphenyl)-6-((pyridin-2-ylmethyl)thio)-1H-pyrazolo[3,4-d]pyrimidin-4-ol
CAS 922107-53-7C18H15N5O2S
![4-({[1-(3-Methoxyphenyl)-5-methyl-1H-1,2,3-triazol-4-yl]carbonyl}amino)phenyl thiocyanate chemical structure, C18H15N5O2S, CAS 924840-32-4](/s/JDXBTHZAGBDYIX-UHFFFAOYSA-N.svg)
4-({[1-(3-Methoxyphenyl)-5-methyl-1H-1,2,3-triazol-4-yl]carbonyl}amino)phenyl thiocyanate
CAS 924840-32-4C18H15N5O2S
![N-[2-({3-Phenyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl}oxy)ethyl]thiophene-2-carboxamide chemical structure, C18H15N5O2S, CAS 946212-03-9](/s/BYSMBQVJNPFNQE-UHFFFAOYSA-N.svg)
N-[2-({3-Phenyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl}oxy)ethyl]thiophene-2-carboxamide
CAS 946212-03-9C18H15N5O2S
![1-(4-{6-Methoxyimidazo[1,2-b]pyridazin-2-yl}phenyl)-3-(thiophen-2-yl)urea chemical structure, C18H15N5O2S, CAS 1060264-93-8](/s/FDKQUBQFSBVRFT-UHFFFAOYSA-N.svg)
1-(4-{6-Methoxyimidazo[1,2-b]pyridazin-2-yl}phenyl)-3-(thiophen-2-yl)urea
CAS 1060264-93-8C18H15N5O2S
3-(4-Methyl-5-((4-nitrobenzyl)thio)-4H-1,2,4-triazol-3-yl)-1H-indole
CAS 852143-27-2C18H15N5O2S
![2-((11H-Benzo[e]pyrido[3,2-b][1,4]diazepin-6-yl)thio)-N-(5-methylisoxazol-3-yl)acetamide chemical structure, C18H15N5O2S, CAS 920201-80-5](/s/JCPNOACDRFHDPT-UHFFFAOYSA-N.svg)
2-((11H-Benzo[e]pyrido[3,2-b][1,4]diazepin-6-yl)thio)-N-(5-methylisoxazol-3-yl)acetamide
CAS 920201-80-5C18H15N5O2S
![N-(2-(Benzo[d]thiazol-2-yl)-2,4,5,6-tetrahydrocyclopenta[c]pyrazol-3-yl)-5-methylisoxazole-3-carboxamide chemical structure, C18H15N5O2S, CAS 1171996-95-4](/s/LZXIOFGLTWMSPE-UHFFFAOYSA-N.svg)
N-(2-(Benzo[d]thiazol-2-yl)-2,4,5,6-tetrahydrocyclopenta[c]pyrazol-3-yl)-5-methylisoxazole-3-carboxamide
CAS 1171996-95-4C18H15N5O2S
- 3-(1H-Benzo[d]imidazol-2-yl)-5-(4-(methylsulfonyl)phenyl)-pyrazin-2-amine1232410-90-0C18H15N5O2S
- 1-(Furan-2-ylmethyl)-2-imino-10-methyl-5-oxo-2,5-dihydro-1H-dipyrido[1,2-a:2',3'-d]pyrimidine-3-carbothioamide683806-59-9C18H15N5O2S
- N-(4-(5-(Ethylthio)-1H-tetrazol-1-yl)phenyl)benzofuran-2-carboxamide950245-97-3C18H15N5O2S
- 5-Methyl-3-[1-(4-methylphenyl)-1H-pyrazol-5-yl]-N-(1,3-thiazol-2-yl)-1,2-oxazole-4-carboxamide318959-10-3C18H15N5O2S
- 2-{[(5-Methyl-4-phenyl-4H-1,2,4-triazol-3-yl)sulfanyl]methyl}-1,3,4-benzoxadiazepin-5(4H)-one948161-58-8C18H15N5O2S
- 6-[(4-Methylphenyl)sulfonyl]-3-(2-pyridinyl)pyrazolo[1,5-a]pyrimidin-7-ylamine866132-32-3C18H15N5O2S
- 2-(1H-Benzo[d]imidazol-1-yl)-1-(3-(3-(thiophen-2-yl)-1,2,4-oxadiazol-5-yl)azetidin-1-yl)ethanone1327530-00-6C18H15N5O2S
- N-(4-Oxo-1,2,3,3a,4,5-hexahydropyrrolo[1,2-a]quinoxalin-2-yl)benzo[c][1,2,5]thiadiazole-5-carboxamide2034200-87-6C18H15N5O2S
- 2-(4-Amino-5-(2-furyl)(1,2,4-triazol-3-ylthio))-N-naphthylacetamide577767-48-7C18H15N5O2S
- N-[2-(3-Methyl[1,2,4]triazolo[3,4-b][1,3,4]thiadiazol-6-yl)phenyl]-2-phenoxyacetamide838851-61-9C18H15N5O2S
- 2,4-Dihydro-4-[2-(6-methoxy-2-benzothiazolyl)diazenyl]-5-methyl-2-phenyl-3H-pyrazol-3-one73038-34-3C18H15N5O2S
- 3-Phenyl-7-{[1-(2-thienyl)ethyl]amino}pyrimido[4,5-d]pyrimidine-2,4(1H,3H)-dione1396847-32-7C18H15N5O2S
- 2-((1-(Benzo[c][1,2,5]thiadiazole-5-carbonyl)piperidin-4-yl)oxy)nicotinonitrile1797603-25-8C18H15N5O2S
- 2-(1H-Pyrazol-1-yl)-N-(2-{[3-(thiophen-2-yl)-1,2,4-oxadiazol-5-yl]methyl}phenyl)acetamide1797598-63-0C18H15N5O2S
- 6-Ethoxy-N-(2-(imidazo[2,1-b]thiazol-6-yl)phenyl)pyridazine-3-carboxamide1788945-44-7C18H15N5O2S
- 4-Methoxy-N-[3-(3-methyl[1,2,4]triazolo[3,4-b][1,3,4]thiadiazol-6-yl)phenyl]benzamide723752-91-8C18H15N5O2S
- N-(Furan-2-ylmethyl)-2-(1-phenylpyrazolo[3,4-d]pyrimidin-4-yl)sulfanylacetamide483293-68-1C18H15N5O2S
- 4-[6-(1,3-Benzodioxol-5-yl)[1,2,4]triazolo[3,4-b][1,3,4]thiadiazol-3-yl]-N,N-dimethylaniline882644-08-8C18H15N5O2S
- 2-Methoxy-N-[4-(3-methyl[1,2,4]triazolo[3,4-b][1,3,4]thiadiazol-6-yl)phenyl]benzamide903191-28-6C18H15N5O2S
- 2-Methoxy-N-[3-(3-methyl[1,2,4]triazolo[3,4-b][1,3,4]thiadiazol-6-yl)phenyl]benzamide903590-06-7C18H15N5O2S
- 9-(3,4-Dimethylphenyl)-8-oxo-2-(thiophen-2-yl)-8,9-dihydro-7H-purine-6-carboxamide898422-44-1C18H15N5O2S
- N-(1-(3,4-Dimethylphenyl)-4-oxo-1H-pyrazolo[3,4-d]pyrimidin-5(4H)-yl)thiophene-2-carboxamide899967-64-7C18H15N5O2S
- 2-(2-(1H-Pyrrol-1-yl)thiazol-4-yl)-N-((3-phenyl-1,2,4-oxadiazol-5-yl)methyl)acetamide1203194-86-8C18H15N5O2S
- 2-(3-Oxo-1,2-benzothiazol-2(3H)-yl)-N-[4-(1H-1,2,4-triazol-1-ylmethyl)phenyl]acetamide1219543-93-7C18H15N5O2S
- 4-Methyl-N-((4-oxo-3,4-dihydrophthalazin-1-yl)methyl)-2-(1H-pyrrol-1-yl)thiazole-5-carboxamide1226450-15-2C18H15N5O2S
- 2-([1,2,4]Triazolo[4,3-a]quinoxalin-4-ylthio)-N-(4-methoxyphenyl)acetamide1185082-84-1C18H15N5O2S
- N-(1H-Benzimidazol-2-ylmethyl)-2-[6-oxo-3-(thiophen-2-yl)pyridazin-1(6H)-yl]acetamide1435899-05-0C18H15N5O2S
- 3-Phenyl-7-{[2-(2-thienyl)ethyl]amino}pyrimido[4,5-d]pyrimidine-2,4(1H,3H)-dione1396857-06-9C18H15N5O2S
- N-(4-Methoxy-2-methylphenyl)-5-(3-(thiophen-2-yl)-1,2,4-oxadiazol-5-yl)pyrimidin-4-amine2034387-29-4C18H15N5O2S
- 6-(4-Methyl-2-(1H-pyrrol-1-yl)thiazole-5-carbonyl)-2-oxo-1,2,5,6,7,8-hexahydro-1,6-naphthyridine-3-carbonitrile2034426-43-0C18H15N5O2S
- 3-(4-Methyl-5-((3-nitrobenzyl)thio)-4H-1,2,4-triazol-3-yl)-1H-indole852143-33-0C18H15N5O2S
- N-(3-(3-Methyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)phenyl)benzenesulfonamide894988-20-6C18H15N5O2S
- 2-{[5-(Furan-2-yl)-4-(1H-pyrrol-1-yl)-4H-1,2,4-triazol-3-yl]sulfanyl}-N-phenylacetamide886929-12-0C18H15N5O2S
- N-(4-Oxo-1-(p-tolyl)-1H-pyrazolo[3,4-d]pyrimidin-5(4H)-yl)-2-(thiophen-2-yl)acetamide899737-57-6C18H15N5O2S
- 5-Methyl-N-(4-methylthiazol-2-yl)-3-oxo-2-phenyl-3,5-dihydro-2H-pyrazolo[4,3-c]pyridine-7-carboxamide921513-46-4C18H15N5O2S
- 5-Ethyl-3-oxo-2-phenyl-N-(thiazol-2-yl)-3,5-dihydro-2H-pyrazolo[4,3-c]pyridine-7-carboxamide921833-59-2C18H15N5O2S
- N-[3-(Methylsulfanyl)phenyl]-2-(5-oxo[1,2,3]triazolo[1,5-a]quinazolin-4(5H)-yl)acetamide902298-57-1C18H15N5O2S
- 2-(1H-Indazol-4-yl)-4-morpholin-4-yl-thieno[3,2-d]pyrimidine-6-carbaldehyde885618-38-2C18H15N5O2S
- 3-(3,4-Dimethoxyphenyl)-6-[(E)-2-(pyridin-3-yl)ethenyl][1,2,4]triazolo[3,4-b][1,3,4]thiadiazole1119393-43-9C18H15N5O2S
- N-(Benzo[c][1,2,5]thiadiazol-4-yl)-1-ethyl-7-methyl-4-oxo-1,4-dihydro-1,8-naphthyridine-3-carboxamide1207054-65-6C18H15N5O2S
- 2-([1,2,4]Triazolo[4,3-a]quinoxalin-4-ylthio)-N-(2-methoxyphenyl)acetamide1359476-20-2C18H15N5O2S
- N-(2-(Imidazo[2,1-b]thiazol-6-yl)phenyl)-2-(4-methyl-6-oxopyrimidin-1(6H)-yl)acetamide1795296-69-3C18H15N5O2S
- N-(4-Methoxy-2-methylphenyl)-5-[3-(thiophen-3-yl)-1,2,4-oxadiazol-5-yl]pyrimidin-4-amine2034511-26-5C18H15N5O2S
- 3-((1-(Benzo[d]thiazole-6-carbonyl)piperidin-3-yl)oxy)pyrazine-2-carbonitrile2034475-49-3C18H15N5O2S
- 3-((1-(Benzo[d]thiazole-2-carbonyl)piperidin-3-yl)oxy)pyrazine-2-carbonitrile2034229-70-2C18H15N5O2S
- 6-Ethoxy-N-(4-(imidazo[2,1-b]thiazol-6-yl)phenyl)pyrimidine-4-carboxamide2034634-50-7C18H15N5O2S
- N-(2-(4-Oxothieno[3,2-d]pyrimidin-3(4H)-yl)ethyl)-3-(1H-pyrazol-1-yl)benzamide2034412-11-6C18H15N5O2S
- N-(2-(4-Oxothieno[2,3-d]pyrimidin-3(4H)-yl)ethyl)-3-(1H-pyrazol-1-yl)benzamide2034600-96-7C18H15N5O2S
- 1-((3-(Furan-2-yl)pyrazin-2-yl)methyl)-3-(2-methylbenzo[d]thiazol-5-yl)urea2034362-88-2C18H15N5O2S
- N-((3-(Furan-3-yl)pyrazin-2-yl)methyl)-4-methyl-2-(1H-pyrrol-1-yl)thiazole-5-carboxamide2034423-48-6C18H15N5O2S
- N-((5-(1-Methyl-1H-pyrazol-5-yl)pyridin-3-yl)methyl)-5-(thiophen-2-yl)isoxazole-3-carboxamide2320663-36-1C18H15N5O2S
- N-((2-(1-Methyl-1H-pyrazol-4-yl)pyridin-3-yl)methyl)-5-(thiophen-2-yl)isoxazole-3-carboxamide2178773-87-8C18H15N5O2S
- 2-[[5-(Furan-2-yl)-4-prop-2-enyl-1,2,4-triazol-3-yl]sulfanylmethyl]-5-phenyl-1,3,4-oxadiazole879610-92-1C18H15N5O2S
- 1-Methyl-N-{[5-(3-phenyl-1,2,4-oxadiazol-5-yl)-2-thienyl]methyl}-1H-pyrazole-5-carboxamide1358110-95-8C18H15N5O2S
- Anti-inflammatory agent 92910876-54-7C18H15N5O2S
- 2-(4-Oxo-1-phenyl-1,4-dihydro-5H-pyrazolo[3,4-d]pyrimidin-5-yl)-N-(2-thienylmethyl)acetamide606091-75-2C18H15N5O2S
- 2-(1H-Benzimidazol-2-ylsulfanyl)-N-(5-oxo-1-phenyl-4,5-dihydro-1H-pyrazol-3-yl)acetamide919437-71-1C18H15N5O2S
- 5-[4-(1-Methyl-1H-pyrazol-4-yl)-6-quinolinyl]-3-pyridinesulfonamide1086057-58-0C18H15N5O2S
- 5-[(1-Methyl-7-oxopyrrolo[2,3-c]pyridin-6-yl)methyl]-N-phenyl-1,3,4-thiadiazole-2-carboxamide1444608-48-3C18H15N5O2S
- N-(2,1,3-Benzothiadiazol-4-yl)-1-(1,3-benzoxazol-2-yl)pyrrolidine-2-carboxamide2097865-57-9C18H15N5O2S
- N-{2-Hydroxy-2-[4-(1H-pyrazol-1-yl)phenyl]ethyl}-2,1,3-benzothiadiazole-5-carboxamide2415491-53-9C18H15N5O2S
- N-{[2-(4-Methoxyphenyl)-1,3-thiazol-4-yl]methyl}imidazo[1,2-b]pyridazine-6-carboxamide2415562-06-8C18H15N5O2S
- N-[1-(4-Cyanophenyl)-3-methyl-1H-1,2,4-triazol-5-yl]-2-phenylethene-1-sulfonamide2396396-26-0C18H15N5O2S
- Benzyl N-[4-cyano-3-(methylsulfanyl)-1-(pyridin-2-yl)-1H-pyrazol-5-yl]carbamate2680818-91-9C18H15N5O2S
Frequently asked questions
What is the molar mass of C18H15N5O2S?
The molar mass of C18H15N5O2S is 365.41 g/mol, calculated from standard atomic weights for 18 carbon atoms, 15 hydrogen atoms, 5 nitrogen atoms, 2 oxygen atoms and 1 sulfur atom. The monoisotopic mass is 365.0946 Da.
How many compounds have the formula C18H15N5O2S?
CompoundList lists 88 compounds with the molecular formula C18H15N5O2S, including N-(2-Furanylmethyl)-2-[(3-phenyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)thio]acetamide, 2-(3-Benzyl-2-methyl-5-nitro-3H-imidazol-4-ylsulfanyl)-1H-benzoimidazole, 1-(3-Methylsulfanyl-6-pyridin-2-yl-6H-[1,2,4]triazino[5,6-d][3,1]benzoxazepin-7-yl)ethanone. 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 C18H15N5O2S?
C18H15N5O2S 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.