The chemical Capsaicin has a designated molecular formula of C18H27NO3 and a molecular weight of 305.418 g/mol. Synonyms may include: 4-13-00-02588 (Beilstein Handbook Reference), BRN 2816484, Capsaicine, Caswell No. 158, CCRIS 1588, EINECS 206-969-8, EPA Pesticide Chemical Code 070701, FEMA No. 3404, HSDB 954, N-(4-Hydroxy-3-methoxybenzyl)-8-methylnon-trans-6-enamide (ChemID).