天堂v国产精品五月天老熟女久久|黄色网站一区二区三区欧美大片|欧美性爱亚洲色图|轮流内射av|日韩人妻精品jvzz日本|综合aV第二页精品无码三区四区|求欧美亚洲日韩网趾|亚洲午夜精品一区二区三区他趣

Products
XL-4
English Name XL-4
chemical name (叔丁基二甲基硅氧基)丙基-4-硝基苯磺酸酯
Formula
molecular formula C15H25NO6SSi
molecular weight 375.518
CAS No 220299-14-9
Specifications  
Uses 西洛多辛中間體
Up product: azelastine hydrochloride IntermediateNext product: XL-3 】 【Back