Molar mass

Molar Mass of Methylene Blue

The molar mass of methylene blue (C16H18ClN3S) is 319.851 g/mol.

Methylene Blue at a glance

PropertyValue
Molar mass319.851 g/mol
Molecular weight319.851 u
Chemical formulaC16H18ClN3S
Monoisotopic mass319.090996 u
CAS number61-73-4
PubChem CID6099

How to calculate the molar mass of methylene blue

16 × 12.011 + 18 × 1.008 + 1 × 35.45 + 3 × 14.007 + 1 × 32.06 = 319.851 g/mol

  1. Count the atoms in C16H18ClN3S: C 16, H 18, Cl 1, N 3, S 1.
  2. Multiply each atom count by the atomic weight of the element.
  3. Add the results to get 319.851 g/mol.

Elemental composition of methylene blue

ElementAtomsAtomic weightMass (g/mol)Mass %
C Carbon1612.011192.17660.083%
H Hydrogen181.00818.1445.6726%
Cl Chlorine135.4535.4511.083%
N Nitrogen314.00742.02113.138%
S Sulfur132.0632.0610.023%

Grams and moles of methylene blue

AmountEquals
1 g0.0031265 mol
10 g0.031265 mol
100 g0.31265 mol
0.1 mol31.985 g
1 mol319.85 g
1 g, in particles1.8828 × 10^21