12-O-Tetradecanoylphorbol 13-acetate, Phorbol 12-myristate 13-acetate, PMA, TPA, 4β,9α,12β,13α,20-Pentahydroxytiglia-1,6-dien-3-one 12-tetradecanoate 13-acetate. CAS Number: 16561-29-8. Molecular Weight: 616.83. Beilstein Registry Number: 2407201. Empirical Formula (Hill Notation):