China Tert-Butyl (2R) -2- (2, 2-dimethyl-4H-1, 3-benzodioxin-6-yl) -2-Hydroxyethylcarbamate CAS No. 452339-72-9, Find details about China 452339-72-9, Tetracaine HCl from Tert-Butyl (2R) -2- (2, 2-dimethyl-4H-1, 3-benzodioxin-6-yl) -2-Hydroxyethylcarbamate CAS No. 452339-72-9