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Testosterone Chemical name: 4-Androsten-17?-ol-3-one Synonyms: 17beta-Hydroxyandrost-4-en-3-one CAS: 58-22-0 EINECS: 200-370-5 Assay: 98 Pourcent min. Molecular formula: C19H28O2 Packing: foil bag or tin. Delivery: Express courier. The min. order is 10 grams. Appearance: white or off-white crystalline powder Usage: Pharmaceutical material, Steroid hormone, Anabolin. For disease-free testosterone replacement therapy, male menopause, impotence and other diseases treatment. standard: enterprise standard