CAS 2749394-90-7 appears in our catalog under these names: Normeperidine-D4.HCl, Normeperidine-D4.HCl, 0.1mg/ml in Methanol (as free base), Normeperidine-D4.HCl, 1mg/ml in Methanol (as free base), Normeperidine–d4 (hydrochloride) (CRM). Offered by: Lipomed, GLPBio. Available pack sizes: 50mg, 100mg, 10mg, 1ml, 1mg.