C18H31P
3 compounds have this formula on CompoundList.
- Molar mass
- 278.42g/mol
- Monoisotopic mass
- 278.2163Da
- Atoms
- 50
- Elements
- 3
- Rings plus double bonds
- 4
The formula C18H31P describes a molecule made of 18 carbon atoms, 31 hydrogen 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 × 1877.65%12.011 × 18 = 216.198 g/mol
- H Hydrogen × 3111.22%1.008 × 31 = 31.248 g/mol
- P Phosphorus × 111.12%30.974 × 1 = 30.974 g/mol
Compounds with the formula C18H31P
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 3 of 3 compounds
Frequently asked questions
What is the molar mass of C18H31P?
The molar mass of C18H31P is 278.42 g/mol, calculated from standard atomic weights for 18 carbon atoms, 31 hydrogen atoms and 1 phosphorus atom. The monoisotopic mass is 278.2163 Da.
How many compounds have the formula C18H31P?
CompoundList lists 3 compounds with the molecular formula C18H31P, including (2,4,6-Tri-tert-butylphenyl)phosphine, Dihexylphenylphosphine, tert-Butyl(3,5-di-tert-butylphenyl)phosphane. 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 C18H31P?
C18H31P 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.