CAS 139356-37-9 appears in our catalog under these names: Paricalcitol impurity 9, 95.0%, Paricalcitol impurity 9 (Standard), Ethanol, 2-[(3R,5R)-3,5-bis[[(1,1-dimethylethyl)dimethylsilyl]oxy]cyclohexylidene]-, 95%, 95%, 2-((3R,5R)-3,5-bis(tert-butyldimethylsilyloxy)cyclohexylidene)ethanol, 95%. Offered by: MedChemExpress, Chemat, Fluorochem. Available pack sizes: 250 mg, 100 mg, 500 mg, 25 mg, 10 mg, 50 mg, 5 mg, 100mg.