... Product name: Vitamin A acid Tretinoin INCI Name: Vitamin A acid CAS. NO.: 302-79-4 Chemical name: 3, 7 ... -dimethly-9-(2, 6-trimethly-1-cylohexane)-2, 4, 6 ... , 8-pelartetaenoic acid Character: Yellow acicular crystals, trans tretionoirum mainly. ... Weight: 300.44 Tretinoin, Isotretinoin & Acitretion,Retinoic Acid, 302-79-4