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Molecular formula

C21H19N5O2S

124 compounds have this formula on CompoundList.

Molar mass
405.48g/mol
Monoisotopic mass
405.1259Da
Atoms
48
Elements
5
Rings plus double bonds
15

The formula C21H19N5O2S describes a molecule made of 21 carbon atoms, 19 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 × 2162.21%
    12.011 × 21 = 252.231 g/mol
  • H Hydrogen × 194.72%
    1.008 × 19 = 19.152 g/mol
  • N Nitrogen × 517.27%
    14.007 × 5 = 70.035 g/mol
  • O Oxygen × 27.89%
    15.999 × 2 = 31.998 g/mol
  • S Sulfur × 17.91%
    32.06 × 1 = 32.060 g/mol
Look up another formula

Compounds with the formula C21H19N5O2S

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

Showing 101 to 124 of 124 compounds

N-(Benzo[d]thiazol-2-yl)-1-(6-(furan-2-yl)pyridazin-3-yl)piperidine-4-carboxamide chemical structure, C21H19N5O2S, CAS 1203291-07-9
N-(Benzo[d]thiazol-2-yl)-1-(6-(furan-2-yl)pyridazin-3-yl)piperidine-4-carboxamide
CAS 1203291-07-9C21H19N5O2S
2-(4-Methoxyphenyl)-4-methyl-N-[4-(1H-1,2,4-triazol-1-ylmethyl)phenyl]-1,3-thiazole-5-carboxamide chemical structure, C21H19N5O2S, CAS 1351687-49-4
2-(4-Methoxyphenyl)-4-methyl-N-[4-(1H-1,2,4-triazol-1-ylmethyl)phenyl]-1,3-thiazole-5-carboxamide
CAS 1351687-49-4C21H19N5O2S
1-(3-Methoxyphenyl)-5-(pyridin-3-yl)-N-[2-(thiophen-2-yl)ethyl]-1H-1,2,3-triazole-4-carboxamide chemical structure, C21H19N5O2S, CAS 1251601-56-5
1-(3-Methoxyphenyl)-5-(pyridin-3-yl)-N-[2-(thiophen-2-yl)ethyl]-1H-1,2,3-triazole-4-carboxamide
CAS 1251601-56-5C21H19N5O2S
5-Methyl-N-(2-(6-oxo-3-(thiophen-2-yl)pyridazin-1(6H)-yl)ethyl)-1-phenyl-1H-pyrazole-4-carboxamide chemical structure, C21H19N5O2S, CAS 1226453-43-5
5-Methyl-N-(2-(6-oxo-3-(thiophen-2-yl)pyridazin-1(6H)-yl)ethyl)-1-phenyl-1H-pyrazole-4-carboxamide
CAS 1226453-43-5C21H19N5O2S
2-[(3-Ethyl[1,2,4]triazolo[4,3-b]pyridazin-6-yl)sulfanyl]-N-(4-phenoxyphenyl)acetamide chemical structure, C21H19N5O2S, CAS 1232807-92-9
2-[(3-Ethyl[1,2,4]triazolo[4,3-b]pyridazin-6-yl)sulfanyl]-N-(4-phenoxyphenyl)acetamide
CAS 1232807-92-9C21H19N5O2S
Ethyl 2-(((5-(4-aminoquinazolin-6-yl)thiophen-2-yl)methyl)amino)nicotinate chemical structure, C21H19N5O2S, CAS 1289188-12-0
Ethyl 2-(((5-(4-aminoquinazolin-6-yl)thiophen-2-yl)methyl)amino)nicotinate
CAS 1289188-12-0C21H19N5O2S
Benzo[b]thiophen-2-yl(3-((3-(pyrazin-2-yl)-1,2,4-oxadiazol-5-yl)methyl)piperidin-1-yl)methanone chemical structure, C21H19N5O2S, CAS 1705071-90-4
Benzo[b]thiophen-2-yl(3-((3-(pyrazin-2-yl)-1,2,4-oxadiazol-5-yl)methyl)piperidin-1-yl)methanone
CAS 1705071-90-4C21H19N5O2S
1-Methyl-6-oxo-N-[1-phenyl-2-(2H-1,2,3-triazol-2-yl)ethyl]-4-(thiophen-2-yl)-1,6-dihydropyridine-3-carboxamide chemical structure, C21H19N5O2S, CAS 2034253-59-1
1-Methyl-6-oxo-N-[1-phenyl-2-(2H-1,2,3-triazol-2-yl)ethyl]-4-(thiophen-2-yl)-1,6-dihydropyridine-3-carboxamide
CAS 2034253-59-1C21H19N5O2S
1-Ethyl-7-methyl-4-oxo-N-{[3-(thiophen-3-yl)pyrazin-2-yl]methyl}-1,4-dihydro-1,8-naphthyridine-3-carboxamide chemical structure, C21H19N5O2S, CAS 2034497-63-5
1-Ethyl-7-methyl-4-oxo-N-{[3-(thiophen-3-yl)pyrazin-2-yl]methyl}-1,4-dihydro-1,8-naphthyridine-3-carboxamide
CAS 2034497-63-5C21H19N5O2S
1-(Benzo[d]oxazol-2-yl)-N-((3-(thiophen-2-yl)pyrazin-2-yl)methyl)pyrrolidine-2-carboxamide chemical structure, C21H19N5O2S, CAS 2034203-72-8
1-(Benzo[d]oxazol-2-yl)-N-((3-(thiophen-2-yl)pyrazin-2-yl)methyl)pyrrolidine-2-carboxamide
CAS 2034203-72-8C21H19N5O2S
2-(3-Oxo-3,5,6,7-tetrahydro-2H-cyclopenta[c]pyridazin-2-yl)-N-(2-(thiophen-2-yl)imidazo[1,2-a]pyridin-3-yl)propanamide chemical structure, C21H19N5O2S, CAS 2097859-14-6
2-(3-Oxo-3,5,6,7-tetrahydro-2H-cyclopenta[c]pyridazin-2-yl)-N-(2-(thiophen-2-yl)imidazo[1,2-a]pyridin-3-yl)propanamide
CAS 2097859-14-6C21H19N5O2S
N-(2,4-Dimethylphenyl)-2-((7-oxo-5-phenyl-7,8-dihydro-[1,2,4]triazolo[4,3-a]pyrimidin-3-yl)thio)acetamide chemical structure, C21H19N5O2S, CAS 894996-23-7
N-(2,4-Dimethylphenyl)-2-((7-oxo-5-phenyl-7,8-dihydro-[1,2,4]triazolo[4,3-a]pyrimidin-3-yl)thio)acetamide
CAS 894996-23-7C21H19N5O2S
2-((7-Oxo-5-phenyl-7,8-dihydro-[1,2,4]triazolo[4,3-a]pyrimidin-3-yl)thio)-N-phenethylacetamide chemical structure, C21H19N5O2S, CAS 894998-54-0
2-((7-Oxo-5-phenyl-7,8-dihydro-[1,2,4]triazolo[4,3-a]pyrimidin-3-yl)thio)-N-phenethylacetamide
CAS 894998-54-0C21H19N5O2S
6-((5-((2-Methylbenzyl)thio)-4-phenyl-4H-1,2,4-triazol-3-yl)methyl)pyrimidine-2,4(1H,3H)-dione chemical structure, C21H19N5O2S, CAS 852047-13-3
6-((5-((2-Methylbenzyl)thio)-4-phenyl-4H-1,2,4-triazol-3-yl)methyl)pyrimidine-2,4(1H,3H)-dione
CAS 852047-13-3C21H19N5O2S
6-[[5-[(4-Methylphenyl)methylsulfanyl]-4-phenyl-1,2,4-triazol-3-yl]methyl]-1H-pyrimidine-2,4-dione chemical structure, C21H19N5O2S, CAS 852047-19-9
6-[[5-[(4-Methylphenyl)methylsulfanyl]-4-phenyl-1,2,4-triazol-3-yl]methyl]-1H-pyrimidine-2,4-dione
CAS 852047-19-9C21H19N5O2S
6-((5-(Benzylthio)-4-(m-tolyl)-4H-1,2,4-triazol-3-yl)methyl)pyrimidine-2,4(1H,3H)-dione chemical structure, C21H19N5O2S, CAS 852047-83-7
6-((5-(Benzylthio)-4-(m-tolyl)-4H-1,2,4-triazol-3-yl)methyl)pyrimidine-2,4(1H,3H)-dione
CAS 852047-83-7C21H19N5O2S
3-(4-tert-Butylphenyl)-6-[(E)-2-(4-nitrophenyl)ethenyl]-[1,2,4]triazolo[3,4-b][1,3,4]thiadiazole chemical structure, C21H19N5O2S, CAS 709003-86-1
3-(4-tert-Butylphenyl)-6-[(E)-2-(4-nitrophenyl)ethenyl]-[1,2,4]triazolo[3,4-b][1,3,4]thiadiazole
CAS 709003-86-1C21H19N5O2S
5-(2-{[4-Cyclopropyl-5-(pyridin-3-yl)-4H-1,2,4-triazol-3-yl]sulfanyl}acetyl)-3-methyl-2,3-dihydro-1H-indol-2-one chemical structure, C21H19N5O2S, CAS 920615-78-7
5-(2-{[4-Cyclopropyl-5-(pyridin-3-yl)-4H-1,2,4-triazol-3-yl]sulfanyl}acetyl)-3-methyl-2,3-dihydro-1H-indol-2-one
CAS 920615-78-7C21H19N5O2S
N-[4-(Benzyloxy)phenyl]-2-[(3-methyl[1,2,4]triazolo[4,3-b]pyridazin-6-yl)sulfanyl]acetamide chemical structure, C21H19N5O2S, CAS 1224167-77-4
N-[4-(Benzyloxy)phenyl]-2-[(3-methyl[1,2,4]triazolo[4,3-b]pyridazin-6-yl)sulfanyl]acetamide
CAS 1224167-77-4C21H19N5O2S
3-(4-Oxo-4H-pyrido[2,1-c][1,2,4]triazin-3-yl)-N-[2-(4-phenyl-1,3-thiazol-2-yl)ethyl]propanamide chemical structure, C21H19N5O2S, CAS 1574302-79-6
3-(4-Oxo-4H-pyrido[2,1-c][1,2,4]triazin-3-yl)-N-[2-(4-phenyl-1,3-thiazol-2-yl)ethyl]propanamide
CAS 1574302-79-6C21H19N5O2S
3-Phenyl-N-[1-(1,2,5-thiadiazol-3-yl)piperidin-4-yl]-2,1-benzoxazole-5-carboxamide chemical structure, C21H19N5O2S, CAS 2097910-55-7
3-Phenyl-N-[1-(1,2,5-thiadiazol-3-yl)piperidin-4-yl]-2,1-benzoxazole-5-carboxamide
CAS 2097910-55-7C21H19N5O2S
N-(3,5-Dimethylphenyl)-2-((7-oxo-5-phenyl-7,8-dihydro-[1,2,4]triazolo[4,3-a]pyrimidin-3-yl)thio)acetamide chemical structure, C21H19N5O2S, CAS 894996-31-7
N-(3,5-Dimethylphenyl)-2-((7-oxo-5-phenyl-7,8-dihydro-[1,2,4]triazolo[4,3-a]pyrimidin-3-yl)thio)acetamide
CAS 894996-31-7C21H19N5O2S
(S)-4-(2,3,9-Trimethyl-6-(oxazol-2-ylmethyl)-6H-thieno[3,2-f][1,2,4]triazolo[4,3-a][1,4]diazepin-4-yl)phenol chemical structure, C21H19N5O2S, CAS 3031623-51-2
(S)-4-(2,3,9-Trimethyl-6-(oxazol-2-ylmethyl)-6H-thieno[3,2-f][1,2,4]triazolo[4,3-a][1,4]diazepin-4-yl)phenol
CAS 3031623-51-2C21H19N5O2S
4-[7-(Benzenesulfonyl)-6H,7H,8H,9H-pyrido[2,3-b]1,6-naphthyridin-3-yl]-1-methyl-1H-pyrazole chemical structure, C21H19N5O2S, CAS 2770625-93-7
4-[7-(Benzenesulfonyl)-6H,7H,8H,9H-pyrido[2,3-b]1,6-naphthyridin-3-yl]-1-methyl-1H-pyrazole
CAS 2770625-93-7C21H19N5O2S

Frequently asked questions

What is the molar mass of C21H19N5O2S?

The molar mass of C21H19N5O2S is 405.48 g/mol, calculated from standard atomic weights for 21 carbon atoms, 19 hydrogen atoms, 5 nitrogen atoms, 2 oxygen atoms and 1 sulfur atom. The monoisotopic mass is 405.1259 Da.

How many compounds have the formula C21H19N5O2S?

CompoundList lists 124 compounds with the molecular formula C21H19N5O2S, including N-(Benzo[d]thiazol-2-yl)-1-(6-(furan-2-yl)pyridazin-3-yl)piperidine-4-carboxamide, 2-(4-Methoxyphenyl)-4-methyl-N-[4-(1H-1,2,4-triazol-1-ylmethyl)phenyl]-1,3-thiazole-5-carboxamide, 1-(3-Methoxyphenyl)-5-(pyridin-3-yl)-N-[2-(thiophen-2-yl)ethyl]-1H-1,2,3-triazole-4-carboxamide. 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 C21H19N5O2S?

C21H19N5O2S 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.