
TES.bz (3R, 4S)-1-benzoyl-3-triethylsilyloxy -4-phenyl-2-azetidinone CAS: 149249-91-2 Formula: C22H27NO3Si Purity:>97% Optical purity:≥99% Apearance:Yellowish transparent liquid Application: This product(CAS: 149249-91-2) is a kind of side chain of paclitaxel used for synthesizing paclitaxel. (Specification): Reference standard: Enterprise's standard Items: Specification Appearance: Yellowish transparent liquid Loss on drying: <2% Impurity: ≤3% Purity(HPLC): >97% Optical purity: ≥99% |