Carbamimidothioic acid 4,4,5,5,5-pentafluoropentyl ester methanesulfonate CAS # 1107606-68-7 Application: intermediate for Fulvestrant, which is used to treat hormone receptor (HR)-positive metastatic breast cancer in postmenopausal women with disease progression and HR-positive, HER2-negative advanced breast cancer in combination with palbociclib in women with disease progression after endocrine therapy. Appearance: white powder Purity: 99.0%min Package: 25kg / fiber drum This intermediate is produced in the GMP workshop, approved by the US FDA. The technical package is available.Wholesale Pharmaceutical Intermediate website:http://www.fultra-chem.com/pharmaceutical-intermediate/