Kojic acid Inci name: kojic dipalmitate Chemical name: 2-palmitoyloxymethyl-5-palmitoyloxy- ¬+- pyrone Cas no. 79725-98-7 Molecular formula: c38h66o6 Molecular weight: 618.9 Kojic acid dipalmitate is a new skin whitening agent, it can prevent the formation of melanin by inhibiting the activity of tries, effective ratio can be up to 80%, so it have a evidently whitening effect. Specification: Appearance white crystalline Purity (%) 98.0 min Melt point(deg c) 92f+96 Dryness loss (%) 0.5 min Ash content (%) o.5 min Heavy metals (%) 0.001 min Arsenic (%) 0.002 min Microbiological test: bacteria :< 300 cpu fungi :< 100 cpu