Promethazine-d6 Hydrochloride Salt (Standard) is the standard substance of Promethazine-d6 Hydrochloride Salt, and it is applicable for quantitative analysis, quality control, and related research in biochemical experiments. Promethazine-d6 Hydrochloride Salt is a deuterated compound of Promethazine Hydrochloride Salt. Promethazine Hydrochloride Salt has a CAS number of 1173018-74-0.