CompoundList
Sign in
Molecular formula

C21H18ClN5O4S

13 compounds have this formula on CompoundList.

Molar mass
471.92g/mol
Monoisotopic mass
471.0768Da
Atoms
50
Elements
6
Rings plus double bonds
15

The formula C21H18ClN5O4S describes a molecule made of 21 carbon atoms, 18 hydrogen atoms, 1 chlorine atom, 5 nitrogen atoms, 4 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 × 2153.45%
    12.011 × 21 = 252.231 g/mol
  • H Hydrogen × 183.84%
    1.008 × 18 = 18.144 g/mol
  • Cl Chlorine × 17.51%
    35.45 × 1 = 35.450 g/mol
  • N Nitrogen × 514.84%
    14.007 × 5 = 70.035 g/mol
  • O Oxygen × 413.56%
    15.999 × 4 = 63.996 g/mol
  • S Sulfur × 16.79%
    32.06 × 1 = 32.060 g/mol
Look up another formula

Compounds with the formula C21H18ClN5O4S

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

Showing 1 to 13 of 13 compounds

2-{[2-(2-Chlorophenyl)-6,8-dimethyl-5,7-dioxo-5,6,7,8-tetrahydropyrimido[4,5-d]pyrimidin-4-yl]thio}-N-(2-furylmethyl)acetamide chemical structure, C21H18ClN5O4S, CAS 872695-74-4
2-{[2-(2-Chlorophenyl)-6,8-dimethyl-5,7-dioxo-5,6,7,8-tetrahydropyrimido[4,5-d]pyrimidin-4-yl]thio}-N-(2-furylmethyl)acetamide
CAS 872695-74-4C21H18ClN5O4S
N-(Benzo[d][1,3]dioxol-5-yl)-2-((7-chloro-5-oxo-4-propyl-4,5-dihydro-[1,2,4]triazolo[4,3-a]quinazolin-1-yl)thio)acetamide chemical structure, C21H18ClN5O4S, CAS 1111055-03-8
N-(Benzo[d][1,3]dioxol-5-yl)-2-((7-chloro-5-oxo-4-propyl-4,5-dihydro-[1,2,4]triazolo[4,3-a]quinazolin-1-yl)thio)acetamide
CAS 1111055-03-8C21H18ClN5O4S
6-Chloro-N-(3-(3,5-dimethoxyphenylamino)quinoxalin-2-yl)pyridine-3-sulfonamide chemical structure, C21H18ClN5O4S, CAS 928141-28-0
6-Chloro-N-(3-(3,5-dimethoxyphenylamino)quinoxalin-2-yl)pyridine-3-sulfonamide
CAS 928141-28-0C21H18ClN5O4S
N-(3-Chloro-4-methoxyphenyl)-2-((7-(2-methoxyphenyl)-8-oxo-7,8-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-3-yl)thio)acetamide chemical structure, C21H18ClN5O4S, CAS 1223980-99-1
N-(3-Chloro-4-methoxyphenyl)-2-((7-(2-methoxyphenyl)-8-oxo-7,8-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-3-yl)thio)acetamide
CAS 1223980-99-1C21H18ClN5O4S
N-(5-Chloro-2-methoxyphenyl)-2-[[7-(3-methoxyphenyl)-8-oxo-[1,2,4]triazolo[4,3-a]pyrazin-3-yl]sulfanyl]acetamide chemical structure, C21H18ClN5O4S, CAS 1223789-64-7
N-(5-Chloro-2-methoxyphenyl)-2-[[7-(3-methoxyphenyl)-8-oxo-[1,2,4]triazolo[4,3-a]pyrazin-3-yl]sulfanyl]acetamide
CAS 1223789-64-7C21H18ClN5O4S
2-((2-(4-Chlorophenyl)-6,8-dimethyl-5,7-dioxo-5,6,7,8-tetrahydropyrimido[4,5-d]pyrimidin-4-yl)thio)-N-(furan-2-ylmethyl)acetamide chemical structure, C21H18ClN5O4S, CAS 893916-45-5
2-((2-(4-Chlorophenyl)-6,8-dimethyl-5,7-dioxo-5,6,7,8-tetrahydropyrimido[4,5-d]pyrimidin-4-yl)thio)-N-(furan-2-ylmethyl)acetamide
CAS 893916-45-5C21H18ClN5O4S
N-[(2-Chlorophenyl)methyl]-2-{[2-(furan-2-yl)-6,8-dimethyl-5,7-dioxo-5H,6H,7H,8H-[1,3]diazino[4,5-d]pyrimidin-4-yl]sulfanyl}acetamide chemical structure, C21H18ClN5O4S, CAS 863003-68-3
N-[(2-Chlorophenyl)methyl]-2-{[2-(furan-2-yl)-6,8-dimethyl-5,7-dioxo-5H,6H,7H,8H-[1,3]diazino[4,5-d]pyrimidin-4-yl]sulfanyl}acetamide
CAS 863003-68-3C21H18ClN5O4S
2-((1-(4-Chlorophenyl)-4-oxo-4,5-dihydro-1H-pyrazolo[3,4-d]pyrimidin-6-yl)thio)-N-(2,4-dimethoxyphenyl)acetamide chemical structure, C21H18ClN5O4S, CAS 851123-06-3
2-((1-(4-Chlorophenyl)-4-oxo-4,5-dihydro-1H-pyrazolo[3,4-d]pyrimidin-6-yl)thio)-N-(2,4-dimethoxyphenyl)acetamide
CAS 851123-06-3C21H18ClN5O4S
2-((1-(4-Chlorophenyl)-4-oxo-4,5-dihydro-1H-pyrazolo[3,4-d]pyrimidin-6-yl)thio)-N-(2,5-dimethoxyphenyl)acetamide chemical structure, C21H18ClN5O4S, CAS 946200-42-6
2-((1-(4-Chlorophenyl)-4-oxo-4,5-dihydro-1H-pyrazolo[3,4-d]pyrimidin-6-yl)thio)-N-(2,5-dimethoxyphenyl)acetamide
CAS 946200-42-6C21H18ClN5O4S
2-((1-(4-Chlorophenyl)-4-oxo-4,5-dihydro-1H-pyrazolo[3,4-d]pyrimidin-6-yl)thio)-N-(3,4-dimethoxyphenyl)acetamide chemical structure, C21H18ClN5O4S, CAS 946365-94-2
2-((1-(4-Chlorophenyl)-4-oxo-4,5-dihydro-1H-pyrazolo[3,4-d]pyrimidin-6-yl)thio)-N-(3,4-dimethoxyphenyl)acetamide
CAS 946365-94-2C21H18ClN5O4S
2-((2-(3-Chlorophenyl)-6,8-dimethyl-5,7-dioxo-5,6,7,8-tetrahydropyrimido[4,5-d]pyrimidin-4-yl)thio)-N-(furan-2-ylmethyl)acetamide chemical structure, C21H18ClN5O4S, CAS 893923-24-5
2-((2-(3-Chlorophenyl)-6,8-dimethyl-5,7-dioxo-5,6,7,8-tetrahydropyrimido[4,5-d]pyrimidin-4-yl)thio)-N-(furan-2-ylmethyl)acetamide
CAS 893923-24-5C21H18ClN5O4S
(E)-4-Chloro-N-((5-((2-(2-methylimidazo[1,2-a]pyridine-3-carbonyl)hydrazono)methyl)furan-2-yl)methyl)benzenesulfonamide chemical structure, C21H18ClN5O4S, CAS 378218-77-0
(E)-4-Chloro-N-((5-((2-(2-methylimidazo[1,2-a]pyridine-3-carbonyl)hydrazono)methyl)furan-2-yl)methyl)benzenesulfonamide
CAS 378218-77-0C21H18ClN5O4S
N-[5-(4-Chloro-1,3-benzodioxol-5-yl)-1-(2-methoxypropyl)pyrazolo[5,4-b]pyridin-3-yl]-1,2-thiazole-5-carboxamide chemical structure, C21H18ClN5O4S, CAS 3080808-86-9
N-[5-(4-Chloro-1,3-benzodioxol-5-yl)-1-(2-methoxypropyl)pyrazolo[5,4-b]pyridin-3-yl]-1,2-thiazole-5-carboxamide
CAS 3080808-86-9C21H18ClN5O4S

Frequently asked questions

What is the molar mass of C21H18ClN5O4S?

The molar mass of C21H18ClN5O4S is 471.92 g/mol, calculated from standard atomic weights for 21 carbon atoms, 18 hydrogen atoms, 1 chlorine atom, 5 nitrogen atoms, 4 oxygen atoms and 1 sulfur atom. The monoisotopic mass is 471.0768 Da.

How many compounds have the formula C21H18ClN5O4S?

CompoundList lists 13 compounds with the molecular formula C21H18ClN5O4S, including 2-{[2-(2-Chlorophenyl)-6,8-dimethyl-5,7-dioxo-5,6,7,8-tetrahydropyrimido[4,5-d]pyrimidin-4-yl]thio}-N-(2-furylmethyl)acetamide, N-(Benzo[d][1,3]dioxol-5-yl)-2-((7-chloro-5-oxo-4-propyl-4,5-dihydro-[1,2,4]triazolo[4,3-a]quinazolin-1-yl)thio)acetamide, 6-Chloro-N-(3-(3,5-dimethoxyphenylamino)quinoxalin-2-yl)pyridine-3-sulfonamide. 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 C21H18ClN5O4S?

C21H18ClN5O4S has a degree of unsaturation of 15. 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.