CAS 566-58-5 appears in our catalog under these names: 5a-Pregnane-3a,20a-diol, >95% (HPLC), 5alpha-Pregnane-3alpha,20alpha-diol, >95% (HPLC), 5α-Pregnane-3α,20α-diol, 5a-Pregnane-3a,20a-diol. Offered by: TRC, TargetMol, Biosynth, MedChemExpress. Available pack sizes: 10mg, 50mg, 5mg, 1mg, 2mg, 25mg, 1 mg, 10 mg.