Valienamine has a chemical formula C7H13NO4 and a molar mass, the mass of a sample of that compound divided by the amount of substance in that sample, of 175.184 gmol.
Chemical formula C7H13NO4 Molar mass 175.184 gmol In chemistry, the molar mass of a chemical compound is defined as the mass of a sample of that compound divided by the amount of substance in that sample, measured in moles. 
