all-trans-Retinyl Stearate is used for the preparation of cosmetic and dermatological compositions.Solubility:As ReportedMethod for Determining Identity:Proton NMR (CDCl3) Spectroscopic analysis and Mass Spectrometric analysisTLC Conditions:As ReportedStorage and Stability:May be stored at RT for short-term only. Long-term storage is recommended at -20°C. For maximum recovery of product, centrifuge the original vial prior to removing the cap. Hygroscopic. Store under inert atmosphere in amber vial. Light and Temperature sensitive.Important Note: This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological. Toxicity and Hazards: All products should be handled by qualified personnel only, trained in laboratory procedures.