Product Description

Items Specifications Characters Almost white or pale yellow, slightly hygroscopic powder Freely soluble in water and in anhydrous ethanol Identification (1)?IR Spectrum conforms with RS (2)?gives reaction of bromides Tests Appearance of solu- tion Solution is clear Solution is not more intensely coloured than reference solution BY5 pH pH8.9~9.5 Specific optical rotation + 28.5°~ + 32.0° Related substances Impurity A=0.2% Impurity B=0.3% Impurity C=0.3% Impurity D=0.1% Impurity E=0.1% Impurity F=0.1% Impurity G=0.1% Impurity H=0.1% Individual unknown impurity =0.1% Total impurities =1.5% Chlorides =0.1% Residual solvents Methylene Chloride =600ppm Methanol=5000ppm Ethyl ether =5000ppm Heavy metals =10ppm Water =4.0% Sulphated ash =0.1% Endotoxin <10EU/mg Assay 99.0%~101.0%