93%:純度Purity (以干基計) ≥93.0% (UV ) 水溶性實驗Solubility in Water 溶液透明 比旋光度Specific rotation [a]20/D +38.0 to +43.0 deg(C=1.5, 5mol/L HCl)(以干基計) 吸光率: abs-ratio(a/b) 2.45 - 2.75(E260/E375) abs-ratio(2a/2b) 2.06 - 2.36(E260/E445) abs-ratio(3a/3b) 0.80 - 0.90(E375/E445) 水分Water ≤ 10.0 % 品級Grade USP級 鑒別試驗IDENTITY PASS 比旋光度Specific rotation [a]20/D +37.0°~ +42.0°(C=2, 5mol/L HCl) PH TEST 5.0 TO 6.5 (1% SOLUTION) 干燥損失LOSS ON DRYING ≤ 7.5% 灼燒殘渣RESIDUE ON IGNITION ≤25.0% 游離磷酸鹽FREE PHOSPHATE PASS 游離核素素及其二磷酸鹽FREE RIBOFLAVIN AND RIBOFLAVIN DIPHOSPHATE ≤6.0% OF EACH (DRY BASIS) LIMIT OF LUMIFLAVIN PASS 溶劑殘渣RESIDUAL SOLVENTS MEETS THE REQUIREMENTS 核黃素RIBOFLAVIN 73.0% ~ 79.0%
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