CompoundList
Sign in
Molecular formula

C18H21N5OS

121 compounds have this formula on CompoundList.

Molar mass
355.46g/mol
Monoisotopic mass
355.1467Da
Atoms
46
Elements
5
Rings plus double bonds
11

The formula C18H21N5OS describes a molecule made of 18 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 × 1860.82%
    12.011 × 18 = 216.198 g/mol
  • H Hydrogen × 215.96%
    1.008 × 21 = 21.168 g/mol
  • N Nitrogen × 519.70%
    14.007 × 5 = 70.035 g/mol
  • O Oxygen × 14.50%
    15.999 × 1 = 15.999 g/mol
  • S Sulfur × 19.02%
    32.06 × 1 = 32.060 g/mol
Look up another formula

Compounds with the formula C18H21N5OS

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

Showing 101 to 121 of 121 compounds

2-[(1-{5,6-Dimethylthieno[2,3-d]pyrimidin-4-yl}piperidin-3-yl)methoxy]pyrazine chemical structure, C18H21N5OS, CAS 2770621-52-6
2-[(1-{5,6-Dimethylthieno[2,3-d]pyrimidin-4-yl}piperidin-3-yl)methoxy]pyrazine
CAS 2770621-52-6C18H21N5OS
1-[(6-Methoxypyridin-3-yl)methyl]-2-methyl-4-{thieno[2,3-d]pyrimidin-4-yl}piperazine chemical structure, C18H21N5OS, CAS 2770618-60-3
1-[(6-Methoxypyridin-3-yl)methyl]-2-methyl-4-{thieno[2,3-d]pyrimidin-4-yl}piperazine
CAS 2770618-60-3C18H21N5OS
2-[(1-{6-Ethylthieno[2,3-d]pyrimidin-4-yl}piperidin-3-yl)methoxy]pyrazine chemical structure, C18H21N5OS, CAS 2770625-85-7
2-[(1-{6-Ethylthieno[2,3-d]pyrimidin-4-yl}piperidin-3-yl)methoxy]pyrazine
CAS 2770625-85-7C18H21N5OS
1-{2-Cyclopropylpyrazolo[1,5-a]pyrazin-4-yl}-3-[(1,3-thiazol-2-yloxy)methyl]piperidine chemical structure, C18H21N5OS, CAS 2770580-84-0
1-{2-Cyclopropylpyrazolo[1,5-a]pyrazin-4-yl}-3-[(1,3-thiazol-2-yloxy)methyl]piperidine
CAS 2770580-84-0C18H21N5OS
1-Methyl-N-[1-(6-methyl-1,3-benzothiazol-2-yl)piperidin-4-yl]-1H-pyrazole-4-carboxamide chemical structure, C18H21N5OS, CAS 3054575-39-9
1-Methyl-N-[1-(6-methyl-1,3-benzothiazol-2-yl)piperidin-4-yl]-1H-pyrazole-4-carboxamide
CAS 3054575-39-9C18H21N5OS
1-Methyl-N-[1-(6-methyl-1,3-benzothiazol-2-yl)piperidin-4-yl]-1H-pyrazole-3-carboxamide chemical structure, C18H21N5OS, CAS 3030782-61-4
1-Methyl-N-[1-(6-methyl-1,3-benzothiazol-2-yl)piperidin-4-yl]-1H-pyrazole-3-carboxamide
CAS 3030782-61-4C18H21N5OS
5-[4-(4-Ethyl-1,3-benzothiazol-2-yl)piperazin-1-yl]-2-methyl-2,3-dihydropyridazin-3-one chemical structure, C18H21N5OS, CAS 3030809-02-7
5-[4-(4-Ethyl-1,3-benzothiazol-2-yl)piperazin-1-yl]-2-methyl-2,3-dihydropyridazin-3-one
CAS 3030809-02-7C18H21N5OS
6-({4-[3-(Methoxymethyl)-1,2,4-thiadiazol-5-yl]piperazin-1-yl}methyl)quinoline chemical structure, C18H21N5OS, CAS 3030784-80-3
6-({4-[3-(Methoxymethyl)-1,2,4-thiadiazol-5-yl]piperazin-1-yl}methyl)quinoline
CAS 3030784-80-3C18H21N5OS
1-Methyl-N-[1-(6-methyl-1,3-benzothiazol-2-yl)piperidin-3-yl]-1H-pyrazole-3-carboxamide chemical structure, C18H21N5OS, CAS 3054559-64-4
1-Methyl-N-[1-(6-methyl-1,3-benzothiazol-2-yl)piperidin-3-yl]-1H-pyrazole-3-carboxamide
CAS 3054559-64-4C18H21N5OS
1-Methyl-N-[1-(6-methyl-1,3-benzothiazol-2-yl)piperidin-3-yl]-1H-pyrazole-4-carboxamide chemical structure, C18H21N5OS, CAS 3030843-71-8
1-Methyl-N-[1-(6-methyl-1,3-benzothiazol-2-yl)piperidin-3-yl]-1H-pyrazole-4-carboxamide
CAS 3030843-71-8C18H21N5OS
1-Methyl-N-[1-(4-methyl-1,3-benzothiazol-2-yl)piperidin-3-yl]-1H-pyrazole-3-carboxamide chemical structure, C18H21N5OS, CAS 3054543-21-1
1-Methyl-N-[1-(4-methyl-1,3-benzothiazol-2-yl)piperidin-3-yl]-1H-pyrazole-3-carboxamide
CAS 3054543-21-1C18H21N5OS
3-({4-[6-Methyl-2-(methylsulfanyl)pyrimidin-4-yl]piperazin-1-yl}methyl)-1,2-benzoxazole chemical structure, C18H21N5OS, CAS 3030812-12-2
3-({4-[6-Methyl-2-(methylsulfanyl)pyrimidin-4-yl]piperazin-1-yl}methyl)-1,2-benzoxazole
CAS 3030812-12-2C18H21N5OS
1-({4-[3-(Methoxymethyl)-1,2,4-thiadiazol-5-yl]piperazin-1-yl}methyl)isoquinoline chemical structure, C18H21N5OS, CAS 3054611-68-3
1-({4-[3-(Methoxymethyl)-1,2,4-thiadiazol-5-yl]piperazin-1-yl}methyl)isoquinoline
CAS 3054611-68-3C18H21N5OS
2-{3-[2-(Methylsulfanyl)pyrimidin-4-yl]-3,6-diazabicyclo[3.1.1]heptan-6-yl}-N-phenylacetamide chemical structure, C18H21N5OS, CAS 3054590-71-2
2-{3-[2-(Methylsulfanyl)pyrimidin-4-yl]-3,6-diazabicyclo[3.1.1]heptan-6-yl}-N-phenylacetamide
CAS 3054590-71-2C18H21N5OS
1,3-Dimethyl-N-(1-{thieno[3,2-b]pyridin-7-yl}piperidin-3-yl)-1H-pyrazole-5-carboxamide chemical structure, C18H21N5OS, CAS 3054567-74-4
1,3-Dimethyl-N-(1-{thieno[3,2-b]pyridin-7-yl}piperidin-3-yl)-1H-pyrazole-5-carboxamide
CAS 3054567-74-4C18H21N5OS
1,5-Dimethyl-N-(1-{thieno[3,2-b]pyridin-7-yl}piperidin-4-yl)-1H-pyrazole-3-carboxamide chemical structure, C18H21N5OS, CAS 3054415-62-9
1,5-Dimethyl-N-(1-{thieno[3,2-b]pyridin-7-yl}piperidin-4-yl)-1H-pyrazole-3-carboxamide
CAS 3054415-62-9C18H21N5OS
1,5-Dimethyl-N-(1-{thieno[3,2-c]pyridin-4-yl}piperidin-4-yl)-1H-pyrazole-3-carboxamide chemical structure, C18H21N5OS, CAS 3054407-41-6
1,5-Dimethyl-N-(1-{thieno[3,2-c]pyridin-4-yl}piperidin-4-yl)-1H-pyrazole-3-carboxamide
CAS 3054407-41-6C18H21N5OS
N-[1-(1,3-Benzothiazol-2-yl)piperidin-3-yl]-1,3-dimethyl-1H-pyrazole-5-carboxamide chemical structure, C18H21N5OS, CAS 3054538-38-1
N-[1-(1,3-Benzothiazol-2-yl)piperidin-3-yl]-1,3-dimethyl-1H-pyrazole-5-carboxamide
CAS 3054538-38-1C18H21N5OS
N-[1-(1,3-Benzothiazol-2-yl)piperidin-4-yl]-1,5-dimethyl-1H-pyrazole-3-carboxamide chemical structure, C18H21N5OS, CAS 3054546-62-9
N-[1-(1,3-Benzothiazol-2-yl)piperidin-4-yl]-1,5-dimethyl-1H-pyrazole-3-carboxamide
CAS 3054546-62-9C18H21N5OS
1-(4-Methylpiperidin-1-yl)-2-[(8-methyl-5H-[1,2,4]triazino[5,6-b]indol-3-yl)sulfanyl]ethanone chemical structure, C18H21N5OS, CAS 603946-23-2
1-(4-Methylpiperidin-1-yl)-2-[(8-methyl-5H-[1,2,4]triazino[5,6-b]indol-3-yl)sulfanyl]ethanone
CAS 603946-23-2C18H21N5OS
5-[4-(4,7-Dimethyl-1,3-benzothiazol-2-yl)piperazin-1-yl]-2-methylpyridazin-3-one chemical structure, C18H21N5OS, CAS 3030846-63-7
5-[4-(4,7-Dimethyl-1,3-benzothiazol-2-yl)piperazin-1-yl]-2-methylpyridazin-3-one
CAS 3030846-63-7C18H21N5OS

Frequently asked questions

What is the molar mass of C18H21N5OS?

The molar mass of C18H21N5OS is 355.46 g/mol, calculated from standard atomic weights for 18 carbon atoms, 21 hydrogen atoms, 5 nitrogen atoms, 1 oxygen atom and 1 sulfur atom. The monoisotopic mass is 355.1467 Da.

How many compounds have the formula C18H21N5OS?

CompoundList lists 121 compounds with the molecular formula C18H21N5OS, including 2-[(1-{5,6-Dimethylthieno[2,3-d]pyrimidin-4-yl}piperidin-3-yl)methoxy]pyrazine, 1-[(6-Methoxypyridin-3-yl)methyl]-2-methyl-4-{thieno[2,3-d]pyrimidin-4-yl}piperazine, 2-[(1-{6-Ethylthieno[2,3-d]pyrimidin-4-yl}piperidin-3-yl)methoxy]pyrazine. 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 C18H21N5OS?

C18H21N5OS has a degree of unsaturation of 11. 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.