99% Purity 17alpha Methyltestosterone Tilapia Feed Additives 17MT Oral Anabolic Steroids 17alpha Methyltestosterone Description Methyltestosterone Synonyms: METANDREN; 17-Méthyltestostérone,17a Methyltestosterone CAS: 58-18-4 M.F.: C20H30O2 M.W.: 302.45 EINECS No.: 200-366-3 Essai: 99.1% Methyltestosterone was first synthesized in 1935, and was the first 17α-alkylated AAS to be synthesized. Méthyltestostérone (brand names Android, Androral, Metandren, Oraviron, Testred, Virilon), also known as 17α-methyltestosterone or as …