CAS 100324-63-8 appears in our catalog under these names: Rifabutin EP Impurity E, Rifabutin Impurity 5（Rifabutin EP Impurity E）, 25-O-Deacetyl Rifabutin, >95% (HPLC), 25-O-Deacetyl rifabutin. Offered by: Chemat Brand, Hubei YoungXin, TRC, Biosynth. Available pack sizes: on request, 10mg, 25mg, 50mg, 100mg, 200mg, 5mg, 2mg.