L-羟基脯氨酸/L-羟脯氨酸/反式-4-羟基-L-脯氨酸/ L-4-羟基脯氨酸/反-4-羟基-L-脯氨酸/4-羟基-2-羧基吡咯啶/4-羟基吡啶烷-2-羧酸/L-Hydroxyproline参考资料: Merck: 14,4840 Beilstein:22(3/4)2047熔点: 274-275℃特定比重: 1.395比旋光度: -75.5 ° (C=4, H2O)颜色索引: 0
L-羟基脯氨酸/L-羟脯氨酸/反式-4-羟基-L-脯氨酸/ L-4-羟基脯氨酸/反-4-羟基-L-脯氨酸/4-羟基-2-羧基吡咯啶/4-羟基吡啶烷-2-羧酸/L-Hydroxyproline |



检测项 | 技术规格 | VALUE |
Z小值 | 值 |
Appearance | white crystal or crystal powder | |
Cl | 0 ppm | 200 ppm | 200 ppm |
Heavy metals (as Pb) | 0 ppm | 10 ppm | 10 ppm |
Infrared spectrum | Conforms to Structure | |
Loss on drying | 0 % | 0.2 % | 0.2 % |
lron(Fe) | 0 ppm | 10 ppm | 10 ppm |
NH4 | 0 ppm | 200 ppm | 200 ppm |
Other amino acids (TLC) | 0 % | 0.5 % | 0.5 % |
Purity | 99 % | 101 % | 101 % |
SO4 | 0 ppm | 200 ppm | 200 ppm |
Specific rotation [a]20/D(c=5, H2O) | 74 ° | 77 ° | 77 ° |
Sulfated ash | 0 % | 0.1 % | 0.1 % |
total metallic impurities | 0 ppm | 0 ppm | 0 ppm |
Transmittance | 95 % | 100 % | 100 % |