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Molecular formula

C18H31NO3

26 compounds have this formula on CompoundList.

Molar mass
309.45g/mol
Monoisotopic mass
309.2304Da
Atoms
53
Elements
4
Rings plus double bonds
4

The formula C18H31NO3 describes a molecule made of 18 carbon atoms, 31 hydrogen atoms, 1 nitrogen atom and 3 oxygen atoms. 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 × 1869.87%
    12.011 × 18 = 216.198 g/mol
  • H Hydrogen × 3110.10%
    1.008 × 31 = 31.248 g/mol
  • N Nitrogen × 14.53%
    14.007 × 1 = 14.007 g/mol
  • O Oxygen × 315.51%
    15.999 × 3 = 47.997 g/mol
Look up another formula

Compounds with the formula C18H31NO3

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-Oxo-N-(2-oxocyclohexyl)dodecanamide chemical structure, C18H31NO3, CAS 596104-55-1
3-Oxo-N-(2-oxocyclohexyl)dodecanamide
CAS 596104-55-1C18H31NO3
N,N-Diisobutyl-4,7,7-trimethyl-3-oxo-2-oxabicyclo[2.2.1]heptane-1-carboxamide chemical structure, C18H31NO3, CAS 607692-95-5
N,N-Diisobutyl-4,7,7-trimethyl-3-oxo-2-oxabicyclo[2.2.1]heptane-1-carboxamide
CAS 607692-95-5C18H31NO3
(S,Z)-N-(2-Oxotetrahydrofuran-3-yl)tetradec-9-enamide chemical structure, C18H31NO3, CAS 1675245-06-3
(S,Z)-N-(2-Oxotetrahydrofuran-3-yl)tetradec-9-enamide
CAS 1675245-06-3C18H31NO3
1,3-Propanediol, 2-amino-2-[2-[4-(heptyloxy)phenyl]ethyl]- chemical structure, C18H31NO3, CAS 758660-87-6
1,3-Propanediol, 2-amino-2-[2-[4-(heptyloxy)phenyl]ethyl]-
CAS 758660-87-6C18H31NO3
Betaxolol EP impurity E chemical structure, C18H31NO3, CAS 1329613-85-5
Betaxolol EP impurity E
CAS 1329613-85-5C18H31NO3
6-(Decylcarbamoyl)cyclohex-3-ene-1-carboxylic acid chemical structure, C18H31NO3, CAS 438614-29-0
6-(Decylcarbamoyl)cyclohex-3-ene-1-carboxylic acid
CAS 438614-29-0C18H31NO3
Ethyl (1R,5R,6R)-7-(tert-butyl)-5-(pentan-3-yloxy)-7-azabicyclo[4.1.0]hept-3-ene-3-carboxylate chemical structure, C18H31NO3, CAS 2417645-75-9
Ethyl (1R,5R,6R)-7-(tert-butyl)-5-(pentan-3-yloxy)-7-azabicyclo[4.1.0]hept-3-ene-3-carboxylate
CAS 2417645-75-9C18H31NO3
2,4,4-Trimethyl-N-(2,4,5-trimethoxybenzyl)pentan-2-amine chemical structure, C18H31NO3, CAS 881453-14-1
2,4,4-Trimethyl-N-(2,4,5-trimethoxybenzyl)pentan-2-amine
CAS 881453-14-1C18H31NO3
1-(3,4,5-Trimethoxyphenyl)nonan-2-amine chemical structure, C18H31NO3, CAS 67293-51-0
1-(3,4,5-Trimethoxyphenyl)nonan-2-amine
CAS 67293-51-0C18H31NO3
Heptanoic acid, 2-hydroxy-2-isopropentyl-, 2-methyl-3-quinuclidinyl ester chemical structure, C18H31NO3, CAS 101913-72-8
Heptanoic acid, 2-hydroxy-2-isopropentyl-, 2-methyl-3-quinuclidinyl ester
CAS 101913-72-8C18H31NO3
[2-Hydroxy-3-(2-methylpropoxy)propyl](2-methoxyethyl)[(3-methylphenyl)methyl]amine chemical structure, C18H31NO3, CAS 1016795-08-6
[2-Hydroxy-3-(2-methylpropoxy)propyl](2-methoxyethyl)[(3-methylphenyl)methyl]amine
CAS 1016795-08-6C18H31NO3
tert-Butyl 9-(allyloxy)-3-azaspiro[5.5]undecane-3-carboxylate chemical structure, C18H31NO3, CAS 1246508-07-5
tert-Butyl 9-(allyloxy)-3-azaspiro[5.5]undecane-3-carboxylate
CAS 1246508-07-5C18H31NO3
Oseltamivir impurity 49 chemical structure, C18H31NO3, CAS 651324-05-9
Oseltamivir impurity 49
CAS 651324-05-9C18H31NO3
1-[[(3,4-Dimethoxyphenyl)methyl](3-methylbutyl)amino]-2-methyl-2-propanol chemical structure, C18H31NO3, CAS 1016876-67-7
1-[[(3,4-Dimethoxyphenyl)methyl](3-methylbutyl)amino]-2-methyl-2-propanol
CAS 1016876-67-7C18H31NO3
Cyclopentaneglycolic acid, alpha-(3-methyl-1-butenyl)-, 1-methyl-4-piperidyl ester, (Z)- chemical structure, C18H31NO3, CAS 92956-26-8
Cyclopentaneglycolic acid, alpha-(3-methyl-1-butenyl)-, 1-methyl-4-piperidyl ester, (Z)-
CAS 92956-26-8C18H31NO3
5-(2,2-Dibutoxypropyl)-2-methoxyaniline chemical structure, C18H31NO3, CAS 90177-04-1
5-(2,2-Dibutoxypropyl)-2-methoxyaniline
CAS 90177-04-1C18H31NO3
3-Acetyl-5-(decyloxy)-4,5-dimethyl-1,5-dihydro-2H-pyrrol-2-one chemical structure, C18H31NO3, CAS 132560-95-3
3-Acetyl-5-(decyloxy)-4,5-dimethyl-1,5-dihydro-2H-pyrrol-2-one
CAS 132560-95-3C18H31NO3
4-Aminobenzoic acid--undecan-1-ol (1/1) chemical structure, C18H31NO3, CAS 113422-77-8
4-Aminobenzoic acid--undecan-1-ol (1/1)
CAS 113422-77-8C18H31NO3
tert-Butyl 4-[2-(hydroxymethyl)spiro[3.3]heptan-2-yl]piperidine-1-carboxylate chemical structure, C18H31NO3, CAS 2138368-96-2
tert-Butyl 4-[2-(hydroxymethyl)spiro[3.3]heptan-2-yl]piperidine-1-carboxylate
CAS 2138368-96-2C18H31NO3
tert-Butyl N-(2-{6,6-dimethylbicyclo[3.1.1]heptan-2-yl}-1-oxopropan-2-yl)-N-methylcarbamate chemical structure, C18H31NO3, CAS 2229336-44-9
tert-Butyl N-(2-{6,6-dimethylbicyclo[3.1.1]heptan-2-yl}-1-oxopropan-2-yl)-N-methylcarbamate
CAS 2229336-44-9C18H31NO3
tert-Butyl N-{2-[(1S,5S)-6,6-dimethylbicyclo[3.1.1]heptan-2-yl]-1-oxopropan-2-yl}-N-methylcarbamate chemical structure, C18H31NO3, CAS 2228074-29-9
tert-Butyl N-{2-[(1S,5S)-6,6-dimethylbicyclo[3.1.1]heptan-2-yl]-1-oxopropan-2-yl}-N-methylcarbamate
CAS 2228074-29-9C18H31NO3
tert-Butyl N-[1-(adamantan-1-yl)-3-hydroxypropyl]carbamate chemical structure, C18H31NO3, CAS 2413879-01-1
tert-Butyl N-[1-(adamantan-1-yl)-3-hydroxypropyl]carbamate
CAS 2413879-01-1C18H31NO3
tert-Butyl 1-cyclohexyl-5-(hydroxymethyl)-3-azabicyclo[3.1.1]heptane-3-carboxylate chemical structure, C18H31NO3, CAS 2913412-91-4
tert-Butyl 1-cyclohexyl-5-(hydroxymethyl)-3-azabicyclo[3.1.1]heptane-3-carboxylate
CAS 2913412-91-4C18H31NO3
2-Propenoic acid, 2-cyano-3-ethoxy-, dodecyl ester chemical structure, C18H31NO3, CAS 89269-07-8
2-Propenoic acid, 2-cyano-3-ethoxy-, dodecyl ester
CAS 89269-07-8C18H31NO3

Frequently asked questions

What is the molar mass of C18H31NO3?

The molar mass of C18H31NO3 is 309.45 g/mol, calculated from standard atomic weights for 18 carbon atoms, 31 hydrogen atoms, 1 nitrogen atom and 3 oxygen atoms. The monoisotopic mass is 309.2304 Da.

How many compounds have the formula C18H31NO3?

CompoundList lists 26 compounds with the molecular formula C18H31NO3, including 3-Oxo-N-(2-oxocyclohexyl)dodecanamide, N,N-Diisobutyl-4,7,7-trimethyl-3-oxo-2-oxabicyclo[2.2.1]heptane-1-carboxamide, (S,Z)-N-(2-Oxotetrahydrofuran-3-yl)tetradec-9-enamide. 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 C18H31NO3?

C18H31NO3 has a degree of unsaturation of 4. 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.