CAS 1257742-38-3 appears in our catalog under these names: 18-Hydroxycorticosterone-9,11,12,12-d4, 18-HYDROXYCORTICOSTERONE-9,11,12,12-D4,&, 18-Hydroxycorticosterone-d4. Offered by: Biosynth, Sigma-Aldrich, Chemat, MedChemExpress. Available pack sizes: 1mg, 1 mg.