CAS 50-27-1 appears in our catalog under these names: Estriol, min. 95 %, 50 g, Estriol, Estriol, >95% (HPLC), Estriol 1.0 mg/ml in Methanol, Estriol 100 µg/mL in Acetonitrile. Offered by: Roth, GLPBio, Chemat Brand, Hubei YoungXin, TRC. Available pack sizes: 50g, 50mg, on request, 10mg, 25mg, 100mg, 200mg, 1g.