Dioxopromethazine

CAS: 13754-56-8
Molecular Formula: C17H20N2O2S
Molecular weight:316.419 
Appearance:Yellow powder 
Purity:99%
Storage:Avoid exposure to sunlight,Keep dry
Product description :This product is a antihistamines, is the derivatives of promethazine, have stronger antitussive, expectorant, and asthma, anti-inflammatory and mucosal surface anesthesia.Used for allergic asthma, urticaria, skin pruritus, etc.