CompoundList
Sign in
Molecular formula

C21H45NO2

10 compounds have this formula on CompoundList.

Molar mass
343.60g/mol
Monoisotopic mass
343.3450Da
Atoms
69
Elements
4
Rings plus double bonds
0

The formula C21H45NO2 describes a molecule made of 21 carbon atoms, 45 hydrogen atoms, 1 nitrogen atom and 2 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 × 2173.41%
    12.011 × 21 = 252.231 g/mol
  • H Hydrogen × 4513.20%
    1.008 × 45 = 45.360 g/mol
  • N Nitrogen × 14.08%
    14.007 × 1 = 14.007 g/mol
  • O Oxygen × 29.31%
    15.999 × 2 = 31.998 g/mol
Look up another formula

Compounds with the formula C21H45NO2

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

Showing 1 to 10 of 10 compounds

Hexadecyltrimethylammonium acetate chemical structure, C21H45NO2, CAS 51374-75-5
Hexadecyltrimethylammonium acetate
CAS 51374-75-5C21H45NO2
1-Heptadecanamine, N,N-dimethyl-, acetate (1:1) chemical structure, C21H45NO2, CAS 65059-85-0
1-Heptadecanamine, N,N-dimethyl-, acetate (1:1)
CAS 65059-85-0C21H45NO2
3-(Octadecylamino)propane-1,2-diol chemical structure, C21H45NO2, CAS 28900-95-0
3-(Octadecylamino)propane-1,2-diol
CAS 28900-95-0C21H45NO2
Ethanol, 2,2'-(heptadecylimino)bis- chemical structure, C21H45NO2, CAS 7517-26-2
Ethanol, 2,2'-(heptadecylimino)bis-
CAS 7517-26-2C21H45NO2
Octadecanoic acid, compd. with 2-propanamine (1:1) chemical structure, C21H45NO2, CAS 67873-97-6
Octadecanoic acid, compd. with 2-propanamine (1:1)
CAS 67873-97-6C21H45NO2
Nonanoic acid, compound with tributylamine (1:1) chemical structure, C21H45NO2, CAS 94166-51-5
Nonanoic acid, compound with tributylamine (1:1)
CAS 94166-51-5C21H45NO2
Octanoic acid, compound with 1,1-dimethylundecylamine (1:1) chemical structure, C21H45NO2, CAS 97659-30-8
Octanoic acid, compound with 1,1-dimethylundecylamine (1:1)
CAS 97659-30-8C21H45NO2
1-Propanol, 2-amino-3-(octadecyloxy)-, (S)- chemical structure, C21H45NO2, CAS 82936-51-4
1-Propanol, 2-amino-3-(octadecyloxy)-, (S)-
CAS 82936-51-4C21H45NO2
Acetic acid--nonadecan-1-amine (1/1) chemical structure, C21H45NO2, CAS 94649-65-7
Acetic acid--nonadecan-1-amine (1/1)
CAS 94649-65-7C21H45NO2
N,N-Dibutyl-N-methylbutan-1-aminium 2,2-diethylbutanoate chemical structure, C21H45NO2, CAS 1092562-17-8
N,N-Dibutyl-N-methylbutan-1-aminium 2,2-diethylbutanoate
CAS 1092562-17-8C21H45NO2

Frequently asked questions

What is the molar mass of C21H45NO2?

The molar mass of C21H45NO2 is 343.60 g/mol, calculated from standard atomic weights for 21 carbon atoms, 45 hydrogen atoms, 1 nitrogen atom and 2 oxygen atoms. The monoisotopic mass is 343.3450 Da.

How many compounds have the formula C21H45NO2?

CompoundList lists 10 compounds with the molecular formula C21H45NO2, including Hexadecyltrimethylammonium acetate, 1-Heptadecanamine, N,N-dimethyl-, acetate (1:1), 3-(Octadecylamino)propane-1,2-diol. 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 C21H45NO2?

C21H45NO2 has a degree of unsaturation of 0. 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.