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Molecular formula

C18H18N4O2S3

16 compounds have this formula on CompoundList.

Molar mass
418.55g/mol
Monoisotopic mass
418.0592Da
Atoms
45
Elements
5
Rings plus double bonds
12

The formula C18H18N4O2S3 describes a molecule made of 18 carbon atoms, 18 hydrogen atoms, 4 nitrogen atoms, 2 oxygen atoms and 3 sulfur atoms. 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 × 1851.65%
    12.011 × 18 = 216.198 g/mol
  • H Hydrogen × 184.33%
    1.008 × 18 = 18.144 g/mol
  • N Nitrogen × 413.39%
    14.007 × 4 = 56.028 g/mol
  • O Oxygen × 27.65%
    15.999 × 2 = 31.998 g/mol
  • S Sulfur × 322.98%
    32.06 × 3 = 96.180 g/mol
Look up another formula

Compounds with the formula C18H18N4O2S3

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

Showing 1 to 16 of 16 compounds

2-[(3,6-Dimethyl-4-oxo-6,7-dihydrothieno[3,2-d]pyrimidin-2-yl)sulfanyl]-N-(6-methyl-1,3-benzothiazol-2-yl)acetamide chemical structure, C18H18N4O2S3, CAS 688353-45-9
2-[(3,6-Dimethyl-4-oxo-6,7-dihydrothieno[3,2-d]pyrimidin-2-yl)sulfanyl]-N-(6-methyl-1,3-benzothiazol-2-yl)acetamide
CAS 688353-45-9C18H18N4O2S3
N-(Benzo[d]thiazol-2-yl)-2-((3-ethyl-6-methyl-4-oxo-3,4,6,7-tetrahydrothieno[3,2-d]pyrimidin-2-yl)thio)acetamide chemical structure, C18H18N4O2S3, CAS 851409-52-4
N-(Benzo[d]thiazol-2-yl)-2-((3-ethyl-6-methyl-4-oxo-3,4,6,7-tetrahydrothieno[3,2-d]pyrimidin-2-yl)thio)acetamide
CAS 851409-52-4C18H18N4O2S3
N-(4-(4-Ethylphenyl)thiazol-2-yl)-2-((2-oxo-2-(thiazol-2-ylamino)ethyl)thio)acetamide chemical structure, C18H18N4O2S3, CAS 681222-52-6
N-(4-(4-Ethylphenyl)thiazol-2-yl)-2-((2-oxo-2-(thiazol-2-ylamino)ethyl)thio)acetamide
CAS 681222-52-6C18H18N4O2S3
N-(4-(3,4-Dimethylphenyl)thiazol-2-yl)-2-((2-oxo-2-(thiazol-2-ylamino)ethyl)thio)acetamide chemical structure, C18H18N4O2S3, CAS 681222-66-2
N-(4-(3,4-Dimethylphenyl)thiazol-2-yl)-2-((2-oxo-2-(thiazol-2-ylamino)ethyl)thio)acetamide
CAS 681222-66-2C18H18N4O2S3
N-(6-((4-Oxo-4-((thiophen-2-ylmethyl)amino)butyl)thio)pyridazin-3-yl)thiophene-2-carboxamide chemical structure, C18H18N4O2S3, CAS 1040648-87-0
N-(6-((4-Oxo-4-((thiophen-2-ylmethyl)amino)butyl)thio)pyridazin-3-yl)thiophene-2-carboxamide
CAS 1040648-87-0C18H18N4O2S3
2-{[3-(2-Methyl-2-propenyl)-4-oxo-3,5,6,7-tetrahydro-4H-cyclopenta[4,5]thieno[2,3-d]pyrimidin-2-yl]thio}-N-(1,3-thiazol-2-yl)acetamide chemical structure, C18H18N4O2S3, CAS 701229-66-5
2-{[3-(2-Methyl-2-propenyl)-4-oxo-3,5,6,7-tetrahydro-4H-cyclopenta[4,5]thieno[2,3-d]pyrimidin-2-yl]thio}-N-(1,3-thiazol-2-yl)acetamide
CAS 701229-66-5C18H18N4O2S3
(Z)-3-Methyl-5-((9-methyl-4-oxo-2-thiomorpholino-4H-pyrido[1,2-a]pyrimidin-3-yl)methylene)-2-thioxothiazolidin-4-one chemical structure, C18H18N4O2S3, CAS 497230-60-1
(Z)-3-Methyl-5-((9-methyl-4-oxo-2-thiomorpholino-4H-pyrido[1,2-a]pyrimidin-3-yl)methylene)-2-thioxothiazolidin-4-one
CAS 497230-60-1C18H18N4O2S3
(E)-4-(4-(Pyrrolidin-1-ylsulfonyl)phenyl)-2-(2-(thiophen-2-ylmethylene)hydrazinyl)thiazole chemical structure, C18H18N4O2S3, CAS 618063-95-9
(E)-4-(4-(Pyrrolidin-1-ylsulfonyl)phenyl)-2-(2-(thiophen-2-ylmethylene)hydrazinyl)thiazole
CAS 618063-95-9C18H18N4O2S3
3-[(Z)-(3-Ethyl-4-oxo-2-thioxo-1,3-thiazolidin-5-ylidene)methyl]-2-(thiomorpholin-4-yl)-4H-pyrido[1,2-a]pyrimidin-4-one chemical structure, C18H18N4O2S3, CAS 488119-03-5
3-[(Z)-(3-Ethyl-4-oxo-2-thioxo-1,3-thiazolidin-5-ylidene)methyl]-2-(thiomorpholin-4-yl)-4H-pyrido[1,2-a]pyrimidin-4-one
CAS 488119-03-5C18H18N4O2S3
4-Ethyl-N-(2-(2-(thiophen-2-yl)thiazolo[3,2-b][1,2,4]triazol-6-yl)ethyl)benzenesulfonamide chemical structure, C18H18N4O2S3, CAS 946206-10-6
4-Ethyl-N-(2-(2-(thiophen-2-yl)thiazolo[3,2-b][1,2,4]triazol-6-yl)ethyl)benzenesulfonamide
CAS 946206-10-6C18H18N4O2S3
2,5-Dimethyl-N-(2-(2-(thiophen-2-yl)thiazolo[3,2-b][1,2,4]triazol-6-yl)ethyl)benzenesulfonamide chemical structure, C18H18N4O2S3, CAS 946206-22-0
2,5-Dimethyl-N-(2-(2-(thiophen-2-yl)thiazolo[3,2-b][1,2,4]triazol-6-yl)ethyl)benzenesulfonamide
CAS 946206-22-0C18H18N4O2S3
5-Methyl-N-(2-(2-(o-tolyl)thiazolo[3,2-b][1,2,4]triazol-6-yl)ethyl)thiophene-2-sulfonamide chemical structure, C18H18N4O2S3, CAS 946206-43-5
5-Methyl-N-(2-(2-(o-tolyl)thiazolo[3,2-b][1,2,4]triazol-6-yl)ethyl)thiophene-2-sulfonamide
CAS 946206-43-5C18H18N4O2S3
2-((6-(4-Methyl-2-(thiophen-2-yl)thiazol-5-yl)pyridazin-3-yl)thio)-1-morpholinoethanone chemical structure, C18H18N4O2S3, CAS 1111248-33-9
2-((6-(4-Methyl-2-(thiophen-2-yl)thiazol-5-yl)pyridazin-3-yl)thio)-1-morpholinoethanone
CAS 1111248-33-9C18H18N4O2S3
1-(2-(Benzo[d]thiazol-2-ylthio)acetyl)-N-(thiazol-2-yl)piperidine-4-carboxamide chemical structure, C18H18N4O2S3, CAS 1226447-63-7
1-(2-(Benzo[d]thiazol-2-ylthio)acetyl)-N-(thiazol-2-yl)piperidine-4-carboxamide
CAS 1226447-63-7C18H18N4O2S3
N-((4-Methyl-2-(thiophen-2-yl)thiazol-5-yl)methyl)-2-(7-methyl-5-oxo-3,5-dihydro-2H-thiazolo[3,2-a]pyrimidin-3-yl)acetamide chemical structure, C18H18N4O2S3, CAS 1705139-75-8
N-((4-Methyl-2-(thiophen-2-yl)thiazol-5-yl)methyl)-2-(7-methyl-5-oxo-3,5-dihydro-2H-thiazolo[3,2-a]pyrimidin-3-yl)acetamide
CAS 1705139-75-8C18H18N4O2S3
N-Cyclopentyl-2-((7-oxo-3-phenyl-2-thioxo-2,3,6,7-tetrahydrothiazolo[4,5-d]pyrimidin-5-yl)thio)acetamide chemical structure, C18H18N4O2S3, CAS 1040653-82-4
N-Cyclopentyl-2-((7-oxo-3-phenyl-2-thioxo-2,3,6,7-tetrahydrothiazolo[4,5-d]pyrimidin-5-yl)thio)acetamide
CAS 1040653-82-4C18H18N4O2S3

Frequently asked questions

What is the molar mass of C18H18N4O2S3?

The molar mass of C18H18N4O2S3 is 418.55 g/mol, calculated from standard atomic weights for 18 carbon atoms, 18 hydrogen atoms, 4 nitrogen atoms, 2 oxygen atoms and 3 sulfur atoms. The monoisotopic mass is 418.0592 Da.

How many compounds have the formula C18H18N4O2S3?

CompoundList lists 16 compounds with the molecular formula C18H18N4O2S3, including 2-[(3,6-Dimethyl-4-oxo-6,7-dihydrothieno[3,2-d]pyrimidin-2-yl)sulfanyl]-N-(6-methyl-1,3-benzothiazol-2-yl)acetamide, N-(Benzo[d]thiazol-2-yl)-2-((3-ethyl-6-methyl-4-oxo-3,4,6,7-tetrahydrothieno[3,2-d]pyrimidin-2-yl)thio)acetamide, N-(4-(4-Ethylphenyl)thiazol-2-yl)-2-((2-oxo-2-(thiazol-2-ylamino)ethyl)thio)acetamide. 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 C18H18N4O2S3?

C18H18N4O2S3 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.