hannah at chembj dot com skype: live:hannah_2165 Name: 13-cis-Vitamin A acid (Related Reference) EINECS: 225-296-0 Molecular Formula: C20H28O2 CAS Registry Number: 4759-48-2 Synonyms: Isotretinoin [USAN:BAN:INN]; (2Z,4E,6E,8E)-3,7-dimethyl-9-(2,6,6-trimethyl-1-cyclohexenyl)nona-2,4,6,8-tetraenoate; Retinoic acid, (13cis)-; 13-cis-Retinoic acid; Isotretinoin Retinoic acid; Prestwick_642; Neovitamin A acid; Claravis; Teriosal; Roaccutan; Isotretion; Isotretinoin?; Isotretinoine [INN-French]; isoretinoin; 4-09-00-02388 (Beilstein Handbook Reference); Appearance: yellowish crystalline powder Molecular Weight: 300.44 Density: 1.011 g/cm3 Boiling Point: 462.8 °C at 760 mmHg Melting Point: 174-177℃ Flash Point: 350.6 °C Storage Temperature: ?20°C Solubility: insoluble in water Stability: Stable, but probably air and light sensitive. Combustible. Incompatible with strong oxidizing agents. Usage: Used as a treatment for severe acne. Presently being studied in conjuction with the treatment of photoaged skin.