CAS 16561-29-8 appears in our catalog under these names: Phorbol 12-myristate 13-acetate, 95%, 4Beta-Phorbol 12-Myristate 13-Acetate, >95% (HPLC), 4b-Phorbol 12-Myristate 13-Acetate, >95% (HPLC), 12–O–tetradecanoyl phorbol–13–acetate, Phorbol 12-myristate 13-acetate/ 99.87% (existing batch purity). Offered by: Combi-blocks, TRC, GLPBio, TargetMol, Thermo Scientific (Alfa Aesar). Available pack sizes: 25mg, 1mg, 2,5mg, 5mg, 1g, 10mM (in 1ml dmso), 10mg, 50mg.