Molar mass

Molar Mass of Melatonin

The molar mass of melatonin (C13H16N2O2) is 232.283 g/mol.

Melatonin at a glance

PropertyValue
Molar mass232.283 g/mol
Molecular weight232.283 u
Chemical formulaC13H16N2O2
Monoisotopic mass232.121178 u
CAS number73-31-4
PubChem CID896

How to calculate the molar mass of melatonin

13 × 12.011 + 16 × 1.008 + 2 × 14.007 + 2 × 15.999 = 232.283 g/mol

  1. Count the atoms in C13H16N2O2: C 13, H 16, N 2, O 2.
  2. Multiply each atom count by the atomic weight of the element.
  3. Add the results to get 232.283 g/mol.

Elemental composition of melatonin

ElementAtomsAtomic weightMass (g/mol)Mass %
C Carbon1312.011156.14367.221%
H Hydrogen161.00816.1286.9433%
N Nitrogen214.00728.01412.06%
O Oxygen215.99931.99813.775%

Grams and moles of melatonin

AmountEquals
1 g0.0043051 mol
10 g0.043051 mol
100 g0.43051 mol
0.1 mol23.228 g
1 mol232.28 g
1 g, in particles2.5926 × 10^21