Molecular formula

C₂₁H₂₁N₅OS

63 compounds have this formula on CompoundList.

Molar mass: 391.49g/mol
Monoisotopic mass: 391.1467Da
Atoms: 49
Elements: 5
Rings plus double bonds: 14

The formula C21H21N5OS describes a molecule made of 21 carbon atoms, 21 hydrogen atoms, 5 nitrogen atoms, 1 oxygen atom 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 × 2164.43%
12.011 × 21 = 252.231 g/mol
H Hydrogen × 215.41%
1.008 × 21 = 21.168 g/mol
N Nitrogen × 517.89%
14.007 × 5 = 70.035 g/mol
O Oxygen × 14.09%
15.999 × 1 = 15.999 g/mol
S Sulfur × 18.19%
32.06 × 1 = 32.060 g/mol

Look up another formula

Compounds with the formula C21H21N5OS

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

Showing 1 to 63 of 63 compounds

(E)-N-(1,5-Dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)-2-((E)-3-phenylallylidene)hydrazinecarbothioamide

CAS 249516-40-3C₂₁H₂₁N₅OS

1-(4-Phenylpiperazino)-2-[[6-(4-pyridyl)pyridazin-3-yl]thio]ethanone

CAS 872987-38-7C₂₁H₂₁N₅OS

3-Benzyl-8-{[2-(3-methylphenoxy)ethyl]thio}-3H-purin-6-amine

CAS 701288-58-6C₂₁H₂₁N₅OS

2-((4-ET-5-PH-4H-1,2,4-Triazol-3-yl)thio)N'-(3-PH-2-propenylidene)acetohydrazide

CAS 361165-42-6C₂₁H₂₁N₅OS

1,5-Dimethyl-2-phenyl-4-(5,6,7,8-tetrahydro[1]benzothieno[2,3-d]pyrimidin-4-ylamino)-1,2-dihydro-3H-pyrazol-3-one

CAS 256956-66-8C₂₁H₂₁N₅OS

1-(3,4-Dihydro-1H-isoquinolin-2-yl)-2-[(4-prop-2-enyl-5-pyridin-4-yl-1,2,4-triazol-3-yl)sulfanyl]ethanone

CAS 851281-05-5C₂₁H₂₁N₅OS

N-Benzyl-2-((4-ethyl-5-(1H-indol-3-yl)-4H-1,2,4-triazol-3-yl)thio)acetamide

CAS 832681-08-0C₂₁H₂₁N₅OS

2-[(5-Ethyl-[1,2,4]triazino[5,6-b]indol-3-yl)sulfanyl]-N-(1-phenylethyl)acetamide

CAS 311334-01-7C₂₁H₂₁N₅OS

1-(4-Phenylpiperazin-1-yl)-2-{[6-(pyridin-3-yl)pyridazin-3-yl]sulfanyl}ethan-1-one

CAS 872987-37-6C₂₁H₂₁N₅OS

3-(2,4-Dimethylpyrido[2',3':3,4]pyrazolo[1,5-a]pyrimidin-3-yl)-N-(3-(methylthio)phenyl)propanamide

CAS 902614-04-4C₂₁H₂₁N₅OS

Benzo[d]thiazol-2-yl(2-(tert-butyl)-3-(1H-pyrrol-1-yl)pyrrolo[3,4-c]pyrazol-5(2H,4H,6H)-yl)methanone

CAS 1251544-54-3C₂₁H₂₁N₅OS

Benzo[d]thiazol-2-yl(4-((1-methyl-1H-benzo[d]imidazol-2-yl)methyl)piperazin-1-yl)methanone

CAS 1172887-37-4C₂₁H₂₁N₅OS

$2-[(4,7-Dimethyl-1,3-benzothiazol-2-yl)(methyl)amino]-1-{2,5,7-triazatricyclo[6.4.0.0^{2,6}]dodeca-1(8),6,9,11-tetraen-5-yl}ethan-1-one chemical structure, C21H21N5OS, CAS 1351620-10-4$

2-[(4,7-Dimethyl-1,3-benzothiazol-2-yl)(methyl)amino]-1-{2,5,7-triazatricyclo[6.4.0.0^{2,6}]dodeca-1(8),6,9,11-tetraen-5-yl}ethan-1-one

CAS 1351620-10-4C₂₁H₂₁N₅OS

2-({4-[(3-Phenyl-1,2,4-oxadiazol-5-yl)methyl]piperazin-1-yl}methyl)-1,3-benzothiazole

CAS 930695-81-1C₂₁H₂₁N₅OS

4-Isopropyl-1-(2-methoxyphenyl)-7-((pyridin-3-ylmethyl)thio)-1H-pyrazolo[3,4-d]pyridazine

CAS 1172016-60-2C₂₁H₂₁N₅OS

1-(4-Phenylpiperazin-1-yl)-2-(6-pyridin-2-ylpyridazin-3-yl)sulfanylethanone

CAS 894001-03-7C₂₁H₂₁N₅OS

4-Isopropyl-1-(2-methoxyphenyl)-7-((pyridin-2-ylmethyl)thio)-1H-pyrazolo[3,4-d]pyridazine

CAS 1105204-94-1C₂₁H₂₁N₅OS

N-(4-Isopropylbenzo[d]thiazol-2-yl)-1-methyl-N-(pyridin-3-ylmethyl)-1H-pyrazole-3-carboxamide

CAS 1172874-77-9C₂₁H₂₁N₅OS

N-(5,7-Dimethylbenzo[d]thiazol-2-yl)-1-ethyl-N-(pyridin-2-ylmethyl)-1H-pyrazole-3-carboxamide

CAS 1170524-67-0C₂₁H₂₁N₅OS

2-([4-[(5-Phenyl-1,3,4-oxadiazol-2-yl)methyl]piperazin-1-yl]methyl)-1,3-benzothiazole

CAS 930742-74-8C₂₁H₂₁N₅OS

1-(4-(1H-Benzo[d]imidazol-2-yl)piperidin-1-yl)-2-(2-(1H-pyrrol-1-yl)thiazol-4-yl)ethanone

CAS 1171738-70-7C₂₁H₂₁N₅OS

N-(4-Phenoxyphenyl)-4-pyrimidin-2-ylpiperazine-1-carbothioamide

CAS 455308-33-5C₂₁H₂₁N₅OS

2-(4-(2-Pyridyl)piperazinyl)-7-(2-thienyl)-6,7,8-trihydroquinazolin-5-one

CAS 920482-48-0C₂₁H₂₁N₅OS

N-(4-Isopropylphenyl)-2-[(2-methyl[1,2,4]triazolo[1,5-c]quinazolin-5-yl)thio]acetamide

CAS 924855-87-8C₂₁H₂₁N₅OS

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What is the molar mass of C21H21N5OS?

The molar mass of C21H21N5OS is 391.49 g/mol, calculated from standard atomic weights for 21 carbon atoms, 21 hydrogen atoms, 5 nitrogen atoms, 1 oxygen atom and 1 sulfur atom. The monoisotopic mass is 391.1467 Da.

How many compounds have the formula C21H21N5OS?

CompoundList lists 63 compounds with the molecular formula C21H21N5OS, including (E)-N-(1,5-Dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)-2-((E)-3-phenylallylidene)hydrazinecarbothioamide, 1-(4-Phenylpiperazino)-2-[[6-(4-pyridyl)pyridazin-3-yl]thio]ethanone, 3-Benzyl-8-{[2-(3-methylphenoxy)ethyl]thio}-3H-purin-6-amine. 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 C21H21N5OS?

C21H21N5OS has a degree of unsaturation of 14. 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.