we offer exemestane 107868-30-4 . synonyms: aromasin (exemestane)*sale specification:quality standard: usp30assay: 99% min. chemical properties: white to light yellow crystal powder cas: 107868-30-4 mf: c20h24o2 mw: 296.4 categories: active pharmaceutical ingredient; antineoplastic (hormonal); steroids mp 155.13c packing: foil bag or tin. usage: an antineoplastic (hormonal). used to treat breast cancer with hormonal therapy. aromatase inhibitors block the synthesis of estrogen. *additional:we pack with double sealed foil bag and plastic bag. small order ok, send your package within 24hours after you order. delivery by express courier of ems, dhl, with decorated labelwest union, , bank transfer for payment.