分子式:C3H7NO2
分子量:89.09
CAS号:56-41-7
L-丙氨酸  | EP6.0  | AJI92  | USP40  | 
性状  | 应为白色或接近白色,结晶性粉末或无色晶体  | 应为白色结晶或结晶性粉末  | -----  | 
鉴别  | 应符合规定  | 应符合规定  | 应符合规定  | 
含量  | 98.5-101.0%  | 99.0%~101.0%  | 98.5%~101.5%  | 
PH  | ---  | 5.7~6.7  | 5.5~7.0  | 
透光率  | ---  | ≥98.0%  | ---  | 
干燥失重  | ≤0.5%  | ≤0.20%  | ≤0.2%  | 
炽灼残渣  | ≤0.1%  | ≤0.10%  | ≤0. 15%  | 
氯化物  | ≤0.020%  | ≤0.020%  | ≤0.05%  | 
重金属  | ≤10ppm  | ≤10ppm  | ≤15ppm  | 
铁盐  | ≤10ppm  | ≤10ppm  | ≤30ppm  | 
硫酸盐  | ≤0.030%  | ≤0.020%  | ≤0.03%  | 
砷盐  | ---  | ≤1ppm  | ---  | 
铵盐  | ≤0.02%  | ≤0.02%  | ---  | 
其他氨基酸  | 应符合规定  | 应符合规定  | 应符合规定  | 
热源  | ---  | 应符合规定  | --  | 
比旋度  | +13.5°~+15.5°  | +14.3°~+15.2°  | ﹢13.7°~﹢15.1°  | 
溶液澄清度  | 溶液澄清度:5%的水溶液应澄清  | ---  | ---  | 
溶液色级:5%的水溶液不应比BY6的参比溶液的颜色更深  | ---  | ---  | |
溶解度  | 易溶于水,极微溶于酒精  | ---  | ---  |