7,10-Bis-O-(2,2,2-trichloroethoxycarbonyl)-10-deacetylbaccatin III was used in the synthesis of docetaxel,and Hand Bio provided 7,10-Bis-O-(2,2,2-trichloroethoxycarbonyl)-10-deacetylbaccatin III CAS 95603-44-4 7,10-Troc-10DAB,for more details,welcome to inquire online.