Hexamethyl Disilyl Urea

Hexamethyl disilyl urea(BSU)-N,N'-Bis(trimethylsilyl)ureaMolecular formula: (CH3)3SiNHCONHSi(CH3)3Molecular weight: 204.4Properties: White, neddle, nontoxic, crystal powder with little amine smell. It can dissolve into ethanol, benzene. When heated, it is easy to hydrolyze.Technical specifications:Index name IndexDensity(25)g/cm3 0.45-0.55Content of Hexamethyl disilyl urea % 98.0Melting point 220-230Applications: An excellent silylating agent in replacement of the active hydrogen group of organic compounds by the trimethylsilyl group. It is ideal silanization protecting agent in the synthesis of antibiotics of -lactam kind. Such as in the semi-synthesis of cephalexin IV, when BSU is used to participate the reaction, the reaction conditions will become very mild, there will be few side reactions, and yield will increase by 2-3times, it has great practical value in the antibiotics industry.Package: Cardboard drum or plastic drum lined with plastic bag.Net weight: 50kg.Notice:1.Store at -50~45. It shall be kept ventilating, drying, and prevented from sunshine, and avoided from contacting with acid substances.2.Shipping conditions: It shall be prevented from raindrenching and sunshine, and transported according to the standard for general chemicals.Storsage life: 5 months.The largest manufacture in China. product offered by Jilin Xinyaqiang Industry Co., Ltd.