Description:Unique skin lightening agent made of natural amino acids with a lipid-residue. White powder. Insoluble but miscible in water, soluble in alcohol. CAS# 175357-18-3. I t e m Specification Analytical Result Assay ≥98% 99.1% Appearance White powder   Conforms Total Nitrogen 3.5-4.5% 3．878% Free undecylenic acid ≤2% 0.125% Mineral acid(HCL) ≤0.5% 0.031% Sulphate ashes ≤1.0% 0 Arsenic ≤2ppm Conforms Heavy …