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Molecular formula

C18H18FN5O3S

20 compounds have this formula on CompoundList.

Molar mass
403.43g/mol
Monoisotopic mass
403.1114Da
Atoms
46
Elements
6
Rings plus double bonds
12

The formula C18H18FN5O3S describes a molecule made of 18 carbon atoms, 18 hydrogen atoms, 1 fluorine atom, 5 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 × 1853.59%
    12.011 × 18 = 216.198 g/mol
  • H Hydrogen × 184.50%
    1.008 × 18 = 18.144 g/mol
  • F Fluorine × 14.71%
    18.998 × 1 = 18.998 g/mol
  • N Nitrogen × 517.36%
    14.007 × 5 = 70.035 g/mol
  • O Oxygen × 311.90%
    15.999 × 3 = 47.997 g/mol
  • S Sulfur × 17.95%
    32.06 × 1 = 32.060 g/mol
Look up another formula

Compounds with the formula C18H18FN5O3S

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

Showing 1 to 20 of 20 compounds

N-(4-Fluorobenzyl)-2-((2,6,8-trimethyl-5,7-dioxo-5,6,7,8-tetrahydropyrimido[4,5-d]pyrimidin-4-yl)thio)acetamide chemical structure, C18H18FN5O3S, CAS 852168-40-2
N-(4-Fluorobenzyl)-2-((2,6,8-trimethyl-5,7-dioxo-5,6,7,8-tetrahydropyrimido[4,5-d]pyrimidin-4-yl)thio)acetamide
CAS 852168-40-2C18H18FN5O3S
2-((2-Ethyl-6,8-dimethyl-5,7-dioxo-5,6,7,8-tetrahydropyrimido[4,5-d]pyrimidin-4-yl)thio)-N-(4-fluorophenyl)acetamide chemical structure, C18H18FN5O3S, CAS 852169-62-1
2-((2-Ethyl-6,8-dimethyl-5,7-dioxo-5,6,7,8-tetrahydropyrimido[4,5-d]pyrimidin-4-yl)thio)-N-(4-fluorophenyl)acetamide
CAS 852169-62-1C18H18FN5O3S
Ethyl 7-(3-aminopyrrolidin-1-yl)-6-fluoro-1,4-dihydro-4-oxo-1-(thiazol-2-yl)-1,8-naphthyridine-3-carboxylate chemical structure, C18H18FN5O3S, CAS 177751-66-5
Ethyl 7-(3-aminopyrrolidin-1-yl)-6-fluoro-1,4-dihydro-4-oxo-1-(thiazol-2-yl)-1,8-naphthyridine-3-carboxylate
CAS 177751-66-5C18H18FN5O3S
2-((4-Amino-5-(3,4-dimethoxyphenyl)-4H-1,2,4-triazol-3-yl)thio)-N-(4-fluorophenyl)acetamide chemical structure, C18H18FN5O3S, CAS 843626-17-5
2-((4-Amino-5-(3,4-dimethoxyphenyl)-4H-1,2,4-triazol-3-yl)thio)-N-(4-fluorophenyl)acetamide
CAS 843626-17-5C18H18FN5O3S
2-{[7-(4-Fluorophenyl)-8-oxo-7H,8H-[1,2,4]triazolo[4,3-a]pyrazin-3-yl]sulfanyl}-N-[(oxolan-2-yl)methyl]acetamide chemical structure, C18H18FN5O3S, CAS 1226431-90-8
2-{[7-(4-Fluorophenyl)-8-oxo-7H,8H-[1,2,4]triazolo[4,3-a]pyrazin-3-yl]sulfanyl}-N-[(oxolan-2-yl)methyl]acetamide
CAS 1226431-90-8C18H18FN5O3S
2-[3-(2-Fluoro-4-methoxyphenyl)-6-oxopyridazin-1(6H)-yl]-N-[(2E)-5-(propan-2-yl)-1,3,4-thiadiazol-2(3H)-ylidene]acetamide chemical structure, C18H18FN5O3S, CAS 1246071-36-2
2-[3-(2-Fluoro-4-methoxyphenyl)-6-oxopyridazin-1(6H)-yl]-N-[(2E)-5-(propan-2-yl)-1,3,4-thiadiazol-2(3H)-ylidene]acetamide
CAS 1246071-36-2C18H18FN5O3S
2-[4-Amino-5-(3,4-dimethoxyphenyl)(1,2,4-triazol-3-ylthio)]-N-(3-fluorophenyl) acetamide chemical structure, C18H18FN5O3S, CAS 840479-77-8
2-[4-Amino-5-(3,4-dimethoxyphenyl)(1,2,4-triazol-3-ylthio)]-N-(3-fluorophenyl) acetamide
CAS 840479-77-8C18H18FN5O3S
2-[4-Amino-5-(3,4-dimethoxyphenyl)(1,2,4-triazol-3-ylthio)]-N-(2-fluorophenyl) acetamide chemical structure, C18H18FN5O3S, CAS 840515-92-6
2-[4-Amino-5-(3,4-dimethoxyphenyl)(1,2,4-triazol-3-ylthio)]-N-(2-fluorophenyl) acetamide
CAS 840515-92-6C18H18FN5O3S
2-{[4-Amino-5-(4-fluorophenyl)-4H-1,2,4-triazol-3-yl]sulfanyl}-N-(3,4-dimethoxyphenyl)acetamide chemical structure, C18H18FN5O3S, CAS 579439-97-7
2-{[4-Amino-5-(4-fluorophenyl)-4H-1,2,4-triazol-3-yl]sulfanyl}-N-(3,4-dimethoxyphenyl)acetamide
CAS 579439-97-7C18H18FN5O3S
2-{[4-Amino-5-(2-fluorophenyl)-4H-1,2,4-triazol-3-yl]sulfanyl}-N-(3,5-dimethoxyphenyl)acetamide chemical structure, C18H18FN5O3S, CAS 587004-30-6
2-{[4-Amino-5-(2-fluorophenyl)-4H-1,2,4-triazol-3-yl]sulfanyl}-N-(3,5-dimethoxyphenyl)acetamide
CAS 587004-30-6C18H18FN5O3S
2-{[4-Amino-5-(2-fluorophenyl)-4H-1,2,4-triazol-3-yl]sulfanyl}-N-(3,4-dimethoxyphenyl)acetamide chemical structure, C18H18FN5O3S, CAS 842968-60-9
2-{[4-Amino-5-(2-fluorophenyl)-4H-1,2,4-triazol-3-yl]sulfanyl}-N-(3,4-dimethoxyphenyl)acetamide
CAS 842968-60-9C18H18FN5O3S
2-[4-Amino-5-(2-fluorophenyl)(1,2,4-triazol-3-ylthio)]-N-(2,4-dimethoxyphenyl) acetamide chemical structure, C18H18FN5O3S, CAS 577768-90-2
2-[4-Amino-5-(2-fluorophenyl)(1,2,4-triazol-3-ylthio)]-N-(2,4-dimethoxyphenyl) acetamide
CAS 577768-90-2C18H18FN5O3S
6-Ethyl-3-{[4-(4-fluorophenyl)piperazino]carbonyl}isothiazolo[4,3-d]pyrimidine-5,7(4H,6H)-dione chemical structure, C18H18FN5O3S, CAS 1251682-22-0
6-Ethyl-3-{[4-(4-fluorophenyl)piperazino]carbonyl}isothiazolo[4,3-d]pyrimidine-5,7(4H,6H)-dione
CAS 1251682-22-0C18H18FN5O3S
2-[3-(4-Fluoro-2-methoxyphenyl)-6-oxopyridazin-1(6H)-yl]-N-[(2E)-5-(propan-2-yl)-1,3,4-thiadiazol-2(3H)-ylidene]acetamide chemical structure, C18H18FN5O3S, CAS 1246073-34-6
2-[3-(4-Fluoro-2-methoxyphenyl)-6-oxopyridazin-1(6H)-yl]-N-[(2E)-5-(propan-2-yl)-1,3,4-thiadiazol-2(3H)-ylidene]acetamide
CAS 1246073-34-6C18H18FN5O3S
2-((4-Fluorophenyl)thio)-N-(4-(4-(2-methoxyethyl)-5-oxo-4,5-dihydro-1H-tetrazol-1-yl)phenyl)acetamide chemical structure, C18H18FN5O3S, CAS 1396749-55-5
2-((4-Fluorophenyl)thio)-N-(4-(4-(2-methoxyethyl)-5-oxo-4,5-dihydro-1H-tetrazol-1-yl)phenyl)acetamide
CAS 1396749-55-5C18H18FN5O3S
2-{[4-Amino-5-(4-fluorophenyl)-4H-1,2,4-triazol-3-yl]sulfanyl}-N-(3,5-dimethoxyphenyl)acetamide chemical structure, C18H18FN5O3S, CAS 577986-27-7
2-{[4-Amino-5-(4-fluorophenyl)-4H-1,2,4-triazol-3-yl]sulfanyl}-N-(3,5-dimethoxyphenyl)acetamide
CAS 577986-27-7C18H18FN5O3S
2-((2-Ethyl-6,8-dimethyl-5,7-dioxo-5,6,7,8-tetrahydropyrimido[4,5-d]pyrimidin-4-yl)thio)-N-(2-fluorophenyl)acetamide chemical structure, C18H18FN5O3S, CAS 852169-58-5
2-((2-Ethyl-6,8-dimethyl-5,7-dioxo-5,6,7,8-tetrahydropyrimido[4,5-d]pyrimidin-4-yl)thio)-N-(2-fluorophenyl)acetamide
CAS 852169-58-5C18H18FN5O3S
Ethyl 2-((3-(2-(4-fluorobenzamido)ethyl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)thio)acetate chemical structure, C18H18FN5O3S, CAS 897759-03-4
Ethyl 2-((3-(2-(4-fluorobenzamido)ethyl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)thio)acetate
CAS 897759-03-4C18H18FN5O3S
2-(1-(4-Fluorophenyl)-4-oxo-1,4,6,7-tetrahydropyrazolo[3,4-d]thiazolo[3,2-a]pyrimidin-6-yl)-N-(2-methoxyethyl)acetamide chemical structure, C18H18FN5O3S, CAS 941889-77-6
2-(1-(4-Fluorophenyl)-4-oxo-1,4,6,7-tetrahydropyrazolo[3,4-d]thiazolo[3,2-a]pyrimidin-6-yl)-N-(2-methoxyethyl)acetamide
CAS 941889-77-6C18H18FN5O3S
5-Fluoro-6-methyl-2-[4-(quinoline-8-sulfonyl)piperazin-1-yl]-3,4-dihydropyrimidin-4-one chemical structure, C18H18FN5O3S, CAS 2549020-91-7
5-Fluoro-6-methyl-2-[4-(quinoline-8-sulfonyl)piperazin-1-yl]-3,4-dihydropyrimidin-4-one
CAS 2549020-91-7C18H18FN5O3S

Frequently asked questions

What is the molar mass of C18H18FN5O3S?

The molar mass of C18H18FN5O3S is 403.43 g/mol, calculated from standard atomic weights for 18 carbon atoms, 18 hydrogen atoms, 1 fluorine atom, 5 nitrogen atoms, 3 oxygen atoms and 1 sulfur atom. The monoisotopic mass is 403.1114 Da.

How many compounds have the formula C18H18FN5O3S?

CompoundList lists 20 compounds with the molecular formula C18H18FN5O3S, including N-(4-Fluorobenzyl)-2-((2,6,8-trimethyl-5,7-dioxo-5,6,7,8-tetrahydropyrimido[4,5-d]pyrimidin-4-yl)thio)acetamide, 2-((2-Ethyl-6,8-dimethyl-5,7-dioxo-5,6,7,8-tetrahydropyrimido[4,5-d]pyrimidin-4-yl)thio)-N-(4-fluorophenyl)acetamide, Ethyl 7-(3-aminopyrrolidin-1-yl)-6-fluoro-1,4-dihydro-4-oxo-1-(thiazol-2-yl)-1,8-naphthyridine-3-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 C18H18FN5O3S?

C18H18FN5O3S 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.