... ,99% Cas:920-68-3,134340-00-4 or 37074-17-2 EINECS:213-061-5 Group-protecting agent Specification:App ... ,1.4181Boiling point,147-150°CApplications:It is widely used in producing pesticide,animal medicine,etc.as a group-protecting agent ... ., Ltd. Heptamethyldisilazane,Cas:920-68-3,134340-00-4 , 37074-17-2