Molecular Formula :C47H51NO14 Molecular Weight:853.92 CAS NO.:33069-62-4 Source: Extract from the Branchs and needles of Taxus chinensis rehd. Assay (on the anhydrous basis)>99.5% Appearance: White crystalline powder Identification: Positive Solubility: Soluble in methanol and acetonitrile, insoluble in water Specific rotation49-55 Melting rotation:213íµ-217íµ Loss on drying: 1.0%Max Residue on ignition: 0.2% Total impurities: