項(xiàng)目Item 檢測(cè)標(biāo)準(zhǔn)Test Criterion 結(jié)果Result 外觀Appearance 無(wú)色至淡黃色油狀物或固體 Colorless to light yellow oily matter or crystal 符合Conforms 比旋度Specific rotation -15±2°(C = 1 in MeOH) -14.4° 含量Assay min 98.0% 99.13% 干燥失重Loss on drying max 0.5% 0.21% 灼燒殘?jiān)黂esidue on Ignition max 0.4% 0.12%