b
Thank You！
Your requirement has been sent, we will contact you quickly!
Sent Failed！
Try again!
分子式：C4H9NO3
分子量：119.12
CAS号：72-19-5
L-苏氨酸 | EP6.0 | AJI92 | USP40 |
性状 | 应为白色或类白色结晶性粉末 | 应为白色结晶或结晶性粉末 | --- |
鉴别 | 红外光吸收图谱应与对照图谱一致 | 应符合规定 | 应符合规定 |
含量 | 99.0-101.0% | 99.0%～100.5% | 98.5%～101.5% |
PH | --- | 5.2~6.2 | 5.0~6.5 |
透光率 | --- | ≥98.0% | --- |
干燥失重 | ≤0.5% | ≤0.20% | ≤0.2% |
炽灼残渣 | ≤0.1% | ≤0.10% | ≤0. 4% |
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 | ≤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 | -27.6°～-29.0° | -27.6°~ -29.0° | -26.7°~-29.1° |
溶液澄清度 | 溶液S是透明无色的 | --- | --- |
溶解度 | 溶于水，几乎不溶于酒精。 | --- | --- |
