CompoundList
Molecular formula

C18H18N4O3S

259 compounds have this formula on CompoundList.

Molar mass
370.43g/mol
Monoisotopic mass
370.1100Da
Atoms
44
Elements
5
Rings plus double bonds
12

The formula C18H18N4O3S describes a molecule made of 18 carbon atoms, 18 hydrogen atoms, 4 nitrogen atoms, 3 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 × 1858.36%
    12.011 × 18 = 216.198 g/mol
  • H Hydrogen × 184.90%
    1.008 × 18 = 18.144 g/mol
  • N Nitrogen × 415.13%
    14.007 × 4 = 56.028 g/mol
  • O Oxygen × 312.96%
    15.999 × 3 = 47.997 g/mol
  • S Sulfur × 18.65%
    32.06 × 1 = 32.060 g/mol
Look up another formula

Compounds with the formula C18H18N4O3S

Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.

Showing 101 to 200 of 259 compounds

Ethyl (2-{[(2,3-dimethylquinoxalin-6-yl)carbonyl]amino}-1,3-thiazol-4-yl)acetate chemical structure, C18H18N4O3S, CAS 1331088-13-1
Ethyl (2-{[(2,3-dimethylquinoxalin-6-yl)carbonyl]amino}-1,3-thiazol-4-yl)acetate
CAS 1331088-13-1C18H18N4O3S
Methyl 2-{[3-(3,5-dimethyl-1H-pyrazol-1-yl)benzoyl]amino}-5-methyl-1,3-thiazole-4-carboxylate chemical structure, C18H18N4O3S, CAS 1442084-61-8
Methyl 2-{[3-(3,5-dimethyl-1H-pyrazol-1-yl)benzoyl]amino}-5-methyl-1,3-thiazole-4-carboxylate
CAS 1442084-61-8C18H18N4O3S
Ethyl 2-({[3-(3,5-dimethyl-1H-pyrazol-1-yl)phenyl]carbonyl}amino)-1,3-thiazole-4-carboxylate chemical structure, C18H18N4O3S, CAS 1435907-61-1
Ethyl 2-({[3-(3,5-dimethyl-1H-pyrazol-1-yl)phenyl]carbonyl}amino)-1,3-thiazole-4-carboxylate
CAS 1435907-61-1C18H18N4O3S
3-(3-(2-Methoxyphenyl)-1,2,4-oxadiazol-5-yl)-N-(thiophen-2-ylmethyl)azetidine-1-carboxamide chemical structure, C18H18N4O3S, CAS 1396792-06-5
3-(3-(2-Methoxyphenyl)-1,2,4-oxadiazol-5-yl)-N-(thiophen-2-ylmethyl)azetidine-1-carboxamide
CAS 1396792-06-5C18H18N4O3S
N-((1-(Furan-3-carbonyl)piperidin-4-yl)methyl)benzo[c][1,2,5]thiadiazole-5-carboxamide chemical structure, C18H18N4O3S, CAS 1396850-14-8
N-((1-(Furan-3-carbonyl)piperidin-4-yl)methyl)benzo[c][1,2,5]thiadiazole-5-carboxamide
CAS 1396850-14-8C18H18N4O3S
2-(Benzo[d]oxazol-2-ylthio)-1-(4-(pyrazin-2-yloxy)piperidin-1-yl)ethanone chemical structure, C18H18N4O3S, CAS 1448072-09-0
2-(Benzo[d]oxazol-2-ylthio)-1-(4-(pyrazin-2-yloxy)piperidin-1-yl)ethanone
CAS 1448072-09-0C18H18N4O3S
1-Ethyl-7-methyl-3-(3-(thiazol-2-yloxy)azetidine-1-carbonyl)-1,8-naphthyridin-4(1H)-one chemical structure, C18H18N4O3S, CAS 1797742-01-8
1-Ethyl-7-methyl-3-(3-(thiazol-2-yloxy)azetidine-1-carbonyl)-1,8-naphthyridin-4(1H)-one
CAS 1797742-01-8C18H18N4O3S
N'-[(E)-(2,4-Dihydroxyphenyl)methylidene]-2-[(1-ethyl-1H-benzimidazol-2-yl)sulfanyl]acetohydrazide chemical structure, C18H18N4O3S, CAS 306953-34-4
N'-[(E)-(2,4-Dihydroxyphenyl)methylidene]-2-[(1-ethyl-1H-benzimidazol-2-yl)sulfanyl]acetohydrazide
CAS 306953-34-4C18H18N4O3S
N-((1E)-2-Indol-3-yl-1-azavinyl)-2-{[(4-methylphenyl)sulfonyl]amino}acetamide chemical structure, C18H18N4O3S, CAS 364365-37-7
N-((1E)-2-Indol-3-yl-1-azavinyl)-2-{[(4-methylphenyl)sulfonyl]amino}acetamide
CAS 364365-37-7C18H18N4O3S
2-Ethoxy-4-({[3-(4-methoxyphenyl)-5-sulfanyl-4H-1,2,4-triazol-4-yl]imino}methyl)phenol chemical structure, C18H18N4O3S
2-Ethoxy-4-({[3-(4-methoxyphenyl)-5-sulfanyl-4H-1,2,4-triazol-4-yl]imino}methyl)phenol
C18H18N4O3S
1-[5-[(4-Methoxyphenoxy)methyl]-1,3,4-thiadiazol-2-yl]-3-(4-methylphenyl)urea chemical structure, C18H18N4O3S, CAS 426237-97-0
1-[5-[(4-Methoxyphenoxy)methyl]-1,3,4-thiadiazol-2-yl]-3-(4-methylphenyl)urea
CAS 426237-97-0C18H18N4O3S
2-((3-Cyano-4,6-dimethylpyridin-2-yl)thio)-N-(2-methyl-4-nitrophenyl)propanamide chemical structure, C18H18N4O3S, CAS 332161-05-4
2-((3-Cyano-4,6-dimethylpyridin-2-yl)thio)-N-(2-methyl-4-nitrophenyl)propanamide
CAS 332161-05-4C18H18N4O3S
1-[[2-(4-Methylphenyl)cyclopropanecarbonyl]amino]-3-(4-nitrophenyl)thiourea chemical structure, C18H18N4O3S, CAS 512824-16-7
1-[[2-(4-Methylphenyl)cyclopropanecarbonyl]amino]-3-(4-nitrophenyl)thiourea
CAS 512824-16-7C18H18N4O3S
N-(2-Ethoxyphenyl)-2-(9-methyl-4-oxopyrido[1,2-a][1,3,5]triazin-2-yl)sulfanylacetamide chemical structure, C18H18N4O3S, CAS 896340-47-9
N-(2-Ethoxyphenyl)-2-(9-methyl-4-oxopyrido[1,2-a][1,3,5]triazin-2-yl)sulfanylacetamide
CAS 896340-47-9C18H18N4O3S
N-[(2E)-5-Cyclopropyl-1,3,4-thiadiazol-2(3H)-ylidene]-2-(2-methylpropyl)-1,3-dioxo-2,3-dihydro-1H-isoindole-5-carboxamide chemical structure, C18H18N4O3S, CAS 899293-84-6
N-[(2E)-5-Cyclopropyl-1,3,4-thiadiazol-2(3H)-ylidene]-2-(2-methylpropyl)-1,3-dioxo-2,3-dihydro-1H-isoindole-5-carboxamide
CAS 899293-84-6C18H18N4O3S
Ethyl 2-{[(2,3-dimethylquinoxalin-6-yl)carbonyl]amino}-4-methyl-1,3-thiazole-5-carboxylate chemical structure, C18H18N4O3S, CAS 1036168-00-9
Ethyl 2-{[(2,3-dimethylquinoxalin-6-yl)carbonyl]amino}-4-methyl-1,3-thiazole-5-carboxylate
CAS 1036168-00-9C18H18N4O3S
Ethyl 4-methyl-2-{[(5-methyl-1-phenyl-1H-pyrazol-4-yl)carbonyl]amino}-1,3-thiazole-5-carboxylate chemical structure, C18H18N4O3S, CAS 1374513-72-0
Ethyl 4-methyl-2-{[(5-methyl-1-phenyl-1H-pyrazol-4-yl)carbonyl]amino}-1,3-thiazole-5-carboxylate
CAS 1374513-72-0C18H18N4O3S
1-(7-Methyl-4-oxo-4H-pyrido[1,2-a]thieno[2,3-d]pyrimidine-2-carbonyl)piperidine-4-carboxamide chemical structure, C18H18N4O3S, CAS 1021212-43-0
1-(7-Methyl-4-oxo-4H-pyrido[1,2-a]thieno[2,3-d]pyrimidine-2-carbonyl)piperidine-4-carboxamide
CAS 1021212-43-0C18H18N4O3S
1,5-Dioxo-4-(propan-2-yl)-N-(1,3-thiazol-2-yl)-2,3,4,5-tetrahydropyrrolo[1,2-a]quinazoline-3a(1H)-carboxamide chemical structure, C18H18N4O3S, CAS 1219406-67-3
1,5-Dioxo-4-(propan-2-yl)-N-(1,3-thiazol-2-yl)-2,3,4,5-tetrahydropyrrolo[1,2-a]quinazoline-3a(1H)-carboxamide
CAS 1219406-67-3C18H18N4O3S
N-(3,4-Difluorophenyl)-N-(4-fluorobenzyl)-3-methyl[1,2,4]triazolo[4,3-a]pyridine-8-sulfonamide chemical structure, C18H18N4O3S, CAS 1251605-10-3
N-(3,4-Difluorophenyl)-N-(4-fluorobenzyl)-3-methyl[1,2,4]triazolo[4,3-a]pyridine-8-sulfonamide
CAS 1251605-10-3C18H18N4O3S
N-[(Furan-2-yl)methyl]-4-(2-methylpropanamido)-3-(pyridin-2-yl)-1,2-thiazole-5-carboxamide chemical structure, C18H18N4O3S, CAS 1251691-17-4
N-[(Furan-2-yl)methyl]-4-(2-methylpropanamido)-3-(pyridin-2-yl)-1,2-thiazole-5-carboxamide
CAS 1251691-17-4C18H18N4O3S
2-Methyl-N-(5-{1-[4-(methylsulfonyl)phenyl]-5-oxopyrrolidin-3-yl}-1,3,4-oxadiazol-2-yl)propanamide chemical structure, C18H18N4O3S, CAS 1251604-17-7
2-Methyl-N-(5-{1-[4-(methylsulfonyl)phenyl]-5-oxopyrrolidin-3-yl}-1,3,4-oxadiazol-2-yl)propanamide
CAS 1251604-17-7C18H18N4O3S
3-{[Acetyl(phenyl)amino]methyl}-N-(5-chloro-2-methoxyphenyl)-1-methyl-1,4,6,7-tetrahydro-5H-pyrazolo[4,3-c]pyridine-5-carboxamide chemical structure, C18H18N4O3S, CAS 1251620-85-5
3-{[Acetyl(phenyl)amino]methyl}-N-(5-chloro-2-methoxyphenyl)-1-methyl-1,4,6,7-tetrahydro-5H-pyrazolo[4,3-c]pyridine-5-carboxamide
CAS 1251620-85-5C18H18N4O3S
N-[(2Z)-4,5-Dimethyl-1,3-thiazol-2(3H)-ylidene]-2-[3-(3-methoxyphenyl)-6-oxopyridazin-1(6H)-yl]acetamide chemical structure, C18H18N4O3S, CAS 1232825-82-9
N-[(2Z)-4,5-Dimethyl-1,3-thiazol-2(3H)-ylidene]-2-[3-(3-methoxyphenyl)-6-oxopyridazin-1(6H)-yl]acetamide
CAS 1232825-82-9C18H18N4O3S

Frequently asked questions

What is the molar mass of C18H18N4O3S?

The molar mass of C18H18N4O3S is 370.43 g/mol, calculated from standard atomic weights for 18 carbon atoms, 18 hydrogen atoms, 4 nitrogen atoms, 3 oxygen atoms and 1 sulfur atom. The monoisotopic mass is 370.1100 Da.

How many compounds have the formula C18H18N4O3S?

CompoundList lists 259 compounds with the molecular formula C18H18N4O3S, including Ethyl (2-{[(2,3-dimethylquinoxalin-6-yl)carbonyl]amino}-1,3-thiazol-4-yl)acetate, Methyl 2-{[3-(3,5-dimethyl-1H-pyrazol-1-yl)benzoyl]amino}-5-methyl-1,3-thiazole-4-carboxylate, Ethyl 2-({[3-(3,5-dimethyl-1H-pyrazol-1-yl)phenyl]carbonyl}amino)-1,3-thiazole-4-carboxylate. 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 C18H18N4O3S?

C18H18N4O3S has a degree of unsaturation of 12. 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.