71780-68-2 Benzenecarbothioic acid, S-(1,2,3,4,5,6-hexahydro-3,6,11-trimethyl-2,6-methano-3-benzazocin-8-yl) ester, (2-alpha,6-alpha,11R*)-, (+-)-, (E)-2-butenedioate (1:1), hydrate S-Metazocine