Molecular formula

C₂₁H₃₁N₃O

26 compounds have this formula on CompoundList.

Molar mass: 341.50g/mol
Monoisotopic mass: 341.2467Da
Atoms: 56
Elements: 4
Rings plus double bonds: 8

The formula C21H31N3O describes a molecule made of 21 carbon atoms, 31 hydrogen atoms, 3 nitrogen atoms and 1 oxygen 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 × 2173.86%
12.011 × 21 = 252.231 g/mol
H Hydrogen × 319.15%
1.008 × 31 = 31.248 g/mol
N Nitrogen × 312.30%
14.007 × 3 = 42.021 g/mol
O Oxygen × 14.68%
15.999 × 1 = 15.999 g/mol

Look up another formula

Compounds with the formula C21H31N3O

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

Showing 1 to 26 of 26 compounds

3,5-di-tert-Butyl-N-[3-(1H-imidazol-1-yl)propyl]benzamide

CAS 692773-86-7C₂₁H₃₁N₃O

2-Amino-4-cyclohexyl-1-hexyl-4-phenyl-1H-imidazol-5(4H)-one

CAS 922498-20-2C₂₁H₃₁N₃O

1-(1-Cyclooctylmethyl-piperidin-4-yl)-1,3-dihydro-benzoimidazol-2-one

CAS 217461-01-3C₂₁H₃₁N₃O

9-Piperidinomethyl-1-phenyl-3,6-diazahomoadamantan-9-ol

CAS 471270-83-4C₂₁H₃₁N₃O

N-[2-[1-(2-Cyclohexylethyl)benzimidazol-2-yl]ethyl]-2-methylpropanamide

CAS 700855-27-2C₂₁H₃₁N₃O

Indeno(1,2-c)pyrazol-4-ol, 1,4-dihydro-3-tert-butyl-4-(3-(dimethylamino)propyl)-1-ethyl-

CAS 68946-21-4C₂₁H₃₁N₃O

N-(2-(1-Methylindolin-5-yl)-2-(pyrrolidin-1-yl)ethyl)cyclopentanecarboxamide

CAS 921894-74-8C₂₁H₃₁N₃O

(2-Benzyl-4-cyclopropylpiperazin-1-yl)(1-methylpiperidin-3-yl)methanone

CAS 1421514-60-4C₂₁H₃₁N₃O

2-(4-Cyclohexylpiperazin-1-yl)-N-(2,3-dihydro-1H-inden-2-yl)acetamide

CAS 896653-89-7C₂₁H₃₁N₃O

(E)-1-(4-((2,4-Dimethylpiperazin-1-yl)methyl)piperidin-1-yl)-3-phenylprop-2-en-1-one

CAS 1421588-85-3C₂₁H₃₁N₃O

N-[2-(1-Methyl-1,2,3,4-tetrahydroquinolin-6-yl)-2-(piperidin-1-yl)ethyl]cyclopropanecarboxamide

CAS 922095-83-8C₂₁H₃₁N₃O

N-{2-Methyl-2-[(1-phenylethyl)amino]propyl}-1-(prop-2-yn-1-yl)piperidine-4-carboxamide

CAS 1333699-12-9C₂₁H₃₁N₃O

1-(1-(1-Methylcyclooctyl)piperidin-4-yl)-1H-benzo[d]imidazol-2(3H)-one

CAS 231961-12-9C₂₁H₃₁N₃O

3-(Adamantan-1-yl)-1-{2-[4-(dimethylamino)phenyl]ethyl}urea

CAS 1396811-76-9C₂₁H₃₁N₃O

(1-Benzyl-3-{[1-(prop-2-yn-1-yl)piperidin-4-yl]amino}piperidin-4-yl)methanol

CAS 1445161-73-8C₂₁H₃₁N₃O

N',N'-Diethyl-N-(5-methoxy-1,2,3,4-tetrahydroacridin-9-yl)propane-1,3-diamine

CAS 6297-87-6C₂₁H₃₁N₃O

1-(1-(4-Propylcyclohexyl)piperidin-4-yl)-1H-benzo[d]imidazol-2(3H)-one

CAS 343614-28-8C₂₁H₃₁N₃O

4-(3-(4-t-Butoxybenzyl)-1-ethyl-(1H-pyrazol-5-yl))piperidine

CAS 301222-47-9C₂₁H₃₁N₃O

N-(1-Cyanocycloheptyl)-2-[methyl({[4-(propan-2-yl)phenyl]methyl})amino]acetamide

CAS 1209246-11-6C₂₁H₃₁N₃O

(2E)-N-({6-Benzyl-6-azaspiro[3.4]octan-8-yl}methyl)-4-(dimethylamino)but-2-enamide

CAS 2411325-59-0C₂₁H₃₁N₃O

1-(1-(1-Propylcyclohexyl)piperidin-4-yl)-1H-benzo[d]imidazol-2(3H)-one

CAS 231960-62-6C₂₁H₃₁N₃O

1-(1-(1-Cyclohexylethyl)piperidin-4-yl)-5-methyl-1H-benzo[d]imidazol-2(3H)-one

CAS 217461-02-4C₂₁H₃₁N₃O

N-Decyl-N-(1-methyl-1H-pyrazol-3-yl)benzamide

CAS 62399-76-2C₂₁H₃₁N₃O

1-[3-(4-Cyclohexyl-1-piperidinyl)propyl]-1,3-dihydro-2H-benzimidazol-2-one

CAS 509147-35-7C₂₁H₃₁N₃O

Frequently asked questions

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What is the molar mass of C21H31N3O?

The molar mass of C21H31N3O is 341.50 g/mol, calculated from standard atomic weights for 21 carbon atoms, 31 hydrogen atoms, 3 nitrogen atoms and 1 oxygen atom. The monoisotopic mass is 341.2467 Da.

How many compounds have the formula C21H31N3O?

CompoundList lists 26 compounds with the molecular formula C21H31N3O, including 3,5-di-tert-Butyl-N-[3-(1H-imidazol-1-yl)propyl]benzamide, 2-Amino-4-cyclohexyl-1-hexyl-4-phenyl-1H-imidazol-5(4H)-one, 1-(1-Cyclooctylmethyl-piperidin-4-yl)-1,3-dihydro-benzoimidazol-2-one. 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 C21H31N3O?

C21H31N3O has a degree of unsaturation of 8. 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.