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Molecular formula

C16H21N5S

19 compounds have this formula on CompoundList.

Molar mass
315.44g/mol
Monoisotopic mass
315.1518Da
Atoms
43
Elements
4
Rings plus double bonds
9

The formula C16H21N5S describes a molecule made of 16 carbon atoms, 21 hydrogen atoms, 5 nitrogen 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 × 1660.92%
    12.011 × 16 = 192.176 g/mol
  • H Hydrogen × 216.71%
    1.008 × 21 = 21.168 g/mol
  • N Nitrogen × 522.20%
    14.007 × 5 = 70.035 g/mol
  • S Sulfur × 110.16%
    32.06 × 1 = 32.060 g/mol
Look up another formula

Compounds with the formula C16H21N5S

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

Showing 1 to 19 of 19 compounds

1-Methyl-4-piperidinone 5,6,7,8-tetrahydro[1]benzothieno[2,3-d]pyrimidin-4-ylhydrazone chemical structure, C16H21N5S, CAS 303227-07-8
1-Methyl-4-piperidinone 5,6,7,8-tetrahydro[1]benzothieno[2,3-d]pyrimidin-4-ylhydrazone
CAS 303227-07-8C16H21N5S
Benzothiazol-2-yl-(5-cyclohexyl-1,4,5,6-tetrahydro-[1,3,5]triazin-2-yl)-amine chemical structure, C16H21N5S, CAS 725219-54-5
Benzothiazol-2-yl-(5-cyclohexyl-1,4,5,6-tetrahydro-[1,3,5]triazin-2-yl)-amine
CAS 725219-54-5C16H21N5S
N-Ethyl-N-{[6-(2-phenylethyl)[1,2,4]triazolo[3,4-b][1,3,4]thiadiazol-3-yl]methyl}ethanamine chemical structure, C16H21N5S, CAS 1282133-45-2
N-Ethyl-N-{[6-(2-phenylethyl)[1,2,4]triazolo[3,4-b][1,3,4]thiadiazol-3-yl]methyl}ethanamine
CAS 1282133-45-2C16H21N5S
(2E)-2-({1-[4-(Dimethylamino)phenyl]-2,5-dimethyl-1H-pyrrol-3-yl}methylidene)hydrazinecarbothioamide chemical structure, C16H21N5S, CAS 340226-07-5
(2E)-2-({1-[4-(Dimethylamino)phenyl]-2,5-dimethyl-1H-pyrrol-3-yl}methylidene)hydrazinecarbothioamide
CAS 340226-07-5C16H21N5S
N-{[6-(3,4-Dimethylphenyl)[1,2,4]triazolo[3,4-b][1,3,4]thiadiazol-3-yl]methyl}-N-ethylethanamine chemical structure, C16H21N5S, CAS 1269188-02-4
N-{[6-(3,4-Dimethylphenyl)[1,2,4]triazolo[3,4-b][1,3,4]thiadiazol-3-yl]methyl}-N-ethylethanamine
CAS 1269188-02-4C16H21N5S
N'-(7,8-Dimethylpyrido[3',2':4,5]thieno[3,2-d]pyrimidin-4-yl)-N,N-dimethylpropane-1,3-diamine chemical structure, C16H21N5S, CAS 1010917-32-4
N'-(7,8-Dimethylpyrido[3',2':4,5]thieno[3,2-d]pyrimidin-4-yl)-N,N-dimethylpropane-1,3-diamine
CAS 1010917-32-4C16H21N5S
2-(Methylsulfanyl)-4-(3-{octahydrocyclopenta[c]pyrrol-2-yl}azetidin-1-yl)pyrimidine-5-carbonitrile chemical structure, C16H21N5S, CAS 2549029-64-1
2-(Methylsulfanyl)-4-(3-{octahydrocyclopenta[c]pyrrol-2-yl}azetidin-1-yl)pyrimidine-5-carbonitrile
CAS 2549029-64-1C16H21N5S
4,5-Dimethyl-2-(methylsulfanyl)-6-[4-(pyridin-2-yl)piperazin-1-yl]pyrimidine chemical structure, C16H21N5S, CAS 2548993-01-5
4,5-Dimethyl-2-(methylsulfanyl)-6-[4-(pyridin-2-yl)piperazin-1-yl]pyrimidine
CAS 2548993-01-5C16H21N5S
N-[1-(4,5,6,7-Tetrahydro-1,3-benzothiazol-2-yl)piperidin-4-yl]pyrimidin-4-amine chemical structure, C16H21N5S, CAS 2202127-13-5
N-[1-(4,5,6,7-Tetrahydro-1,3-benzothiazol-2-yl)piperidin-4-yl]pyrimidin-4-amine
CAS 2202127-13-5C16H21N5S
N-(1-{4H,5H,6H-cyclopenta[d][1,3]thiazol-2-yl}piperidin-4-yl)-6-methylpyrimidin-4-amine chemical structure, C16H21N5S, CAS 2198674-70-1
N-(1-{4H,5H,6H-cyclopenta[d][1,3]thiazol-2-yl}piperidin-4-yl)-6-methylpyrimidin-4-amine
CAS 2198674-70-1C16H21N5S
1-{Pyrido[2,3-d]pyrimidin-4-yl}-4-(thiolan-3-yl)-1,4-diazepane chemical structure, C16H21N5S, CAS 2380143-61-1
1-{Pyrido[2,3-d]pyrimidin-4-yl}-4-(thiolan-3-yl)-1,4-diazepane
CAS 2380143-61-1C16H21N5S
4-{4-[(2-Cyclopropyl-1,3-thiazol-4-yl)methyl]piperazin-1-yl}-6-methylpyrimidine chemical structure, C16H21N5S, CAS 2380088-65-1
4-{4-[(2-Cyclopropyl-1,3-thiazol-4-yl)methyl]piperazin-1-yl}-6-methylpyrimidine
CAS 2380088-65-1C16H21N5S
4-{4-[(3-Methylpyridin-2-yl)methyl]piperazin-1-yl}-2-(methylsulfanyl)pyrimidine chemical structure, C16H21N5S, CAS 2877656-29-4
4-{4-[(3-Methylpyridin-2-yl)methyl]piperazin-1-yl}-2-(methylsulfanyl)pyrimidine
CAS 2877656-29-4C16H21N5S
4-{4-[(2-Methylpyridin-3-yl)methyl]piperazin-1-yl}-2-(methylsulfanyl)pyrimidine chemical structure, C16H21N5S, CAS 2877650-06-9
4-{4-[(2-Methylpyridin-3-yl)methyl]piperazin-1-yl}-2-(methylsulfanyl)pyrimidine
CAS 2877650-06-9C16H21N5S
N-[1-(5-Cyclopropyl-1,3,4-thiadiazol-2-yl)piperidin-4-yl]-N-methylpyridin-2-amine chemical structure, C16H21N5S, CAS 2742007-14-1
N-[1-(5-Cyclopropyl-1,3,4-thiadiazol-2-yl)piperidin-4-yl]-N-methylpyridin-2-amine
CAS 2742007-14-1C16H21N5S
N-[1-(3-Cyclopropyl-1,2,4-thiadiazol-5-yl)piperidin-4-yl]-N-methylpyridin-2-amine chemical structure, C16H21N5S, CAS 2741927-16-0
N-[1-(3-Cyclopropyl-1,2,4-thiadiazol-5-yl)piperidin-4-yl]-N-methylpyridin-2-amine
CAS 2741927-16-0C16H21N5S
N-Methyl-N-{1-[2-(methylsulfanyl)pyrimidin-4-yl]piperidin-4-yl}pyridin-2-amine chemical structure, C16H21N5S, CAS 2742053-02-5
N-Methyl-N-{1-[2-(methylsulfanyl)pyrimidin-4-yl]piperidin-4-yl}pyridin-2-amine
CAS 2742053-02-5C16H21N5S
4-Cyclopropyl-6-[4-(5-ethyl-1,3,4-thiadiazol-2-yl)piperidin-1-yl]pyrimidine chemical structure, C16H21N5S, CAS 2742056-62-6
4-Cyclopropyl-6-[4-(5-ethyl-1,3,4-thiadiazol-2-yl)piperidin-1-yl]pyrimidine
CAS 2742056-62-6C16H21N5S
N-Cyclopropyl-N-{1-[(4-methyl-1,3-thiazol-5-yl)methyl]pyrrolidin-3-yl}pyrimidin-4-amine chemical structure, C16H21N5S, CAS 3054623-49-0
N-Cyclopropyl-N-{1-[(4-methyl-1,3-thiazol-5-yl)methyl]pyrrolidin-3-yl}pyrimidin-4-amine
CAS 3054623-49-0C16H21N5S

Frequently asked questions

What is the molar mass of C16H21N5S?

The molar mass of C16H21N5S is 315.44 g/mol, calculated from standard atomic weights for 16 carbon atoms, 21 hydrogen atoms, 5 nitrogen atoms and 1 sulfur atom. The monoisotopic mass is 315.1518 Da.

How many compounds have the formula C16H21N5S?

CompoundList lists 19 compounds with the molecular formula C16H21N5S, including 1-Methyl-4-piperidinone 5,6,7,8-tetrahydro[1]benzothieno[2,3-d]pyrimidin-4-ylhydrazone, Benzothiazol-2-yl-(5-cyclohexyl-1,4,5,6-tetrahydro-[1,3,5]triazin-2-yl)-amine, N-Ethyl-N-{[6-(2-phenylethyl)[1,2,4]triazolo[3,4-b][1,3,4]thiadiazol-3-yl]methyl}ethanamine. 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 C16H21N5S?

C16H21N5S has a degree of unsaturation of 9. 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.