B 2399 (OTTO) tert-Butyldiphenylchlorosilane, 98%+ Cas 58479-61-1 - used to protect alcohols and in the preparation of silyl ethers. It plays a major role as a raw material and a precursor in organic synthesis and pharmaceuticals. B 2399 (OTTO) tert-Butyldiphenylchlorosilane, 98%+ Cas 58479-61-1 - used for the synthesis of interphenylene phenyloxazoles which can be used for the treatment of circulatory disorders, angina and stroke.