Click image to view original image
Synonyms: 4-Hydroxy Testosterone; hydroxy-androst-4-ene-17-dione;4-hydroxy-delta(sub4)-androstenedione
CAS: 566-48-3
MF: C19H26O3
MW: 302.41
Product Categories: Pharmaceutical Raw Materials;Miscellaneous Biochemicals;Inhibitors;Intermediates & Fine Chemicals;Steroids;Anti-cancer&immunity
Chemical Properties:Off-white crystalline powder
Usage:An antitumor drug. An aromatase inhibitor,antineoplastic, aromatase inhibitor.
Packing:Foil bag as requirred
Formestane (Lentaron) is a type I, steroidal aromatase inhibitor. It is used in the treatment of estrogen-receptor positive breast cancer in post-menopausal women. It is available as an intramuscular depot injection.
ITEMS SPECIFICATION RESULTS
Description White or Almost White Crystalline Powder white powder
Identification A.B. Positive
Assay 97.0~103.0% 99.30%
Specific Rotation +101°~+105° +102.6°
Loss On Drying 1.0%max 0.27%
Melting Point 153~157℃ 153.0~155.0℃
Organic Volatile Impurities meets the requirement. Conforms
Related Substances meets the requirement. Conforms
Residual Solvents meets the requirement. Conforms
Particle Size 100% ≤20 microns Conforms
