CAS 15374-15-9 appears in our catalog under these names: Promethazine Sulfone Hydrochloride, Dioxopromethazine hydrochloride, Dioxopromethazine hydrochloride/ 99%, Dioxopromethazine hydrochloride, 98%, 98%, Dioxopromethazine hydrochloride, 99.97%. Offered by: Mikromol, Dr. Ehrenstorfer, GLPBio, TargetMol, Chemat. Available pack sizes: 4x25mg, 25mg, 50mg, 5mg, 10mg, 100mg, 200mg, 5g.