Synonyms: 6-methylenandrosta-1,4-diene-3,17-dione;10,13-dimethyl-6-methylidene-7,8,9,10,11,12,13,14,15,16-decahydrocyclopenta[a]phenanthrene-;Exemestan;Exemestance
CAS: 107868-30-4
MF: C20H24O2
MW: 296.4
Product Categories: Active Pharmaceutical Ingredients;chiral;Antineoplastic (Hormonal);Intermediates & Fine Chemicals;Pharmaceuticals;Steroids;Pfizer compounds;Steroid and Hormone
Chemical Properties: white to light yellow crystal powder
Usage: An antineoplastic (hormonal) ,antiinfective
Packing:1kg/foil bag or as required
Exemestane (Aromasin) COA:
Appearance White crystalline powder
Assay(by HPLC) 98.0~102.0% 98.64%
Absorbance(E1cm) 465~495 482.5
Melting Point 191~195℃ 193.5~195.0℃
Loss On Drying 0.5%max 0.19%
Specific Rotation +288°~ +298° +290.2°
Residue On Ignition 0.1%max 0.03%
Related Substances Total:1.5%max <1.3%
Single:0.5%max <0.4%
Residue Solvents 0.2%max 0.10%
Micron 100% ≤20um 100%≤20um
Heavy metals 20PPm max <10PPm