
TES.boc (3R,4S)-1-t-butoxycarbonyl-3-triethylsilyloxy -4-phenyl-2-azetidinone CAS: 149198-47-0 Formula: C20H31NO4Si Purity:>97% Optical purity:99% Apearance:Transparent liquid Application: This product(CAS: 149198-47-0) is a kind of side chain of docetaxel used for synthesizing docetaxel. (Specification): Reference standard: Enterprise's standard Items: Specification Appearance: Transparent liquid or solid Loss on drying: <2% Impurity: ≤3% Purity(HPLC): >97% Optical purity: ≥99% |