CAS 13027-33-3 appears in our catalog under these names: 5α-Hydroxy-6-keto cholesterol, 5α–hydroxy–6–keto Cholesterol, 6-KETO-5 ALPHA-HYDROXYCHOLESTEROL, 5α-Hydroxy-6-keto cholesterol, 99.9%. Offered by: TargetMol, GLPBio, Sigma-Aldrich, MedChemExpress. Available pack sizes: 1mg, 5mg, 10mg, 5 mg.