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Molecular formula

C11H21O3P

12 compounds have this formula on CompoundList.

Molar mass
232.26g/mol
Monoisotopic mass
232.1228Da
Atoms
36
Elements
4
Rings plus double bonds
2

The formula C11H21O3P describes a molecule made of 11 carbon atoms, 21 hydrogen atoms, 3 oxygen atoms and 1 phosphorus 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 × 1156.88%
    12.011 × 11 = 132.121 g/mol
  • H Hydrogen × 219.11%
    1.008 × 21 = 21.168 g/mol
  • O Oxygen × 320.67%
    15.999 × 3 = 47.997 g/mol
  • P Phosphorus × 113.34%
    30.974 × 1 = 30.974 g/mol
Look up another formula

Compounds with the formula C11H21O3P

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

Showing 1 to 12 of 12 compounds

10-Undecynylphosphonic acid chemical structure, C11H21O3P, CAS 1220675-30-8
10-Undecynylphosphonic acid
CAS 1220675-30-8C11H21O3P
Phosphonic acid, methyl-, dicyclopentyl ester chemical structure, C11H21O3P, CAS 22583-27-3
Phosphonic acid, methyl-, dicyclopentyl ester
CAS 22583-27-3C11H21O3P
Phosphonic acid, [1-(1,1-dimethylethyl)-4,4-dimethyl-1,2-pentadienyl]- chemical structure, C11H21O3P, CAS 42087-76-3
Phosphonic acid, [1-(1,1-dimethylethyl)-4,4-dimethyl-1,2-pentadienyl]-
CAS 42087-76-3C11H21O3P
Di-tert-butyl propadienylphosphonate chemical structure, C11H21O3P, CAS 25383-48-6
Di-tert-butyl propadienylphosphonate
CAS 25383-48-6C11H21O3P
Dipropan-2-yl (3-methylbuta-1,2-dien-1-yl)phosphonate chemical structure, C11H21O3P, CAS 73332-29-3
Dipropan-2-yl (3-methylbuta-1,2-dien-1-yl)phosphonate
CAS 73332-29-3C11H21O3P
Phosphonic acid, P-methyl-, mono[(1R,2S,4R)-1,7,7-trimethylbicyclo[2.2.1]hept-2-yl] ester, rel- chemical structure, C11H21O3P, CAS 17980-73-3
Phosphonic acid, P-methyl-, mono[(1R,2S,4R)-1,7,7-trimethylbicyclo[2.2.1]hept-2-yl] ester, rel-
CAS 17980-73-3C11H21O3P
[(2E,4E)-4-Methyl-2,4-hexadienyl]phosphonic acid diethyl ester chemical structure, C11H21O3P, CAS 104701-95-3
[(2E,4E)-4-Methyl-2,4-hexadienyl]phosphonic acid diethyl ester
CAS 104701-95-3C11H21O3P
1-Diethoxyphosphoryl-3-methylcyclohexene chemical structure, C11H21O3P, CAS 126424-00-8
1-Diethoxyphosphoryl-3-methylcyclohexene
CAS 126424-00-8C11H21O3P
1,2-Oxaphosphole, 3,5-bis(1,1-dimethylethyl)-2,5-dihydro-2-hydroxy-, 2-oxide chemical structure, C11H21O3P, CAS 56248-43-2
1,2-Oxaphosphole, 3,5-bis(1,1-dimethylethyl)-2,5-dihydro-2-hydroxy-, 2-oxide
CAS 56248-43-2C11H21O3P
Dicyclopentyl methyl phosphite chemical structure, C11H21O3P, CAS 88053-15-0
Dicyclopentyl methyl phosphite
CAS 88053-15-0C11H21O3P
Prop-2-en-1-yl 3-(diethylphosphoryl)butanoate chemical structure, C11H21O3P, CAS 64809-80-9
Prop-2-en-1-yl 3-(diethylphosphoryl)butanoate
CAS 64809-80-9C11H21O3P
Dimethyl nona-2,4-dien-1-ylphosphonate chemical structure, C11H21O3P, CAS 874916-92-4
Dimethyl nona-2,4-dien-1-ylphosphonate
CAS 874916-92-4C11H21O3P

Frequently asked questions

What is the molar mass of C11H21O3P?

The molar mass of C11H21O3P is 232.26 g/mol, calculated from standard atomic weights for 11 carbon atoms, 21 hydrogen atoms, 3 oxygen atoms and 1 phosphorus atom. The monoisotopic mass is 232.1228 Da.

How many compounds have the formula C11H21O3P?

CompoundList lists 12 compounds with the molecular formula C11H21O3P, including 10-Undecynylphosphonic acid, Phosphonic acid, methyl-, dicyclopentyl ester, Phosphonic acid, [1-(1,1-dimethylethyl)-4,4-dimethyl-1,2-pentadienyl]-. 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 C11H21O3P?

C11H21O3P has a degree of unsaturation of 2. 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.