Pharmaceutical Intermediates species: Sodium Cyanate, Potassium Cyanate, Subsalt of Heat Treatment, the Main Ring of Promethazine Hydrochloride, Promethazine Hydrochloride Side Chain.

• 医药中间体品种：氰酸钠、氰酸钾、热处理基盐、盐酸异丙嗪主环、盐酸异丙嗪侧链。