Tamoxifen Citrate Chemical Name: (Z)-2-[4-(1,2-Diphenyl-1-butenyl)phenoxyl]-N,N-dimethyl-ethanamine-citrate; 1-p-beta-Dimethylaminoethoxyphenyl-trans-1,2-diphenylbut-1-ene citrate CAS NO.: 54965-24-1 Molecular Formula: C26H29NO.C6H8O7 Molecular weight: 563.64 Appearance: white crystalline powder Standard: CP/2000; USP/26