L-Proline
Molecular Structure:
MDL:
MFCD00064318
Molecular Formula:
C5H9NO2
Molecular Weight:
115.13
Alias:
L-氢化吡咯甲酸
(S)-Pyrrolidine-2-carboxylic acid
L(-)-Proline
H-Pro-OH
Product order:
Name |
Specifications |
Packing |
Price |
Delivery |
L-Proline |
99% |
25g |
RMB 49.5 |
Consulting service |
L-Proline |
99% |
100g |
RMB 132 |
Consulting service |
L-Proline |
99% |
500g |
RMB 528 |
现货 |
L-Proline |
99% |
1kg |
RMB 1056 |
Consulting service |
Character:
无色针状或斜方结晶。无气味。微有甜味。有吸湿性。与水合茚三酮反应呈黄色,被冰乙酸酸化后则显红色。易溶于水和乙醇,不溶于乙醚、丁醇和异丙醇,溶于无机酸。
。水中溶解度:1623g/L (25°C),乙醇溶解度: 67g/100mL (19°C)。
熔点: 228-233 °C
[a]20/D: -85.5° (c=4, H2O)
Quality Standard:
外观Appearance 白色结晶或结晶粉末
红外光谱鉴别Infrared spectrometry 和对照品匹配
纯度Purity 99.0 - 101.0 %
干燥损失Loss on drying <0.3 % (105°C, 3 小时)
重金属Heavy metals (as Pb) <10 ppm
硫酸盐灰分Sulfated ash <0.1 %
其它氨基酸Other amino acids <0.5 % (TLC)
比旋度Specific rotation [a]20/D -84.5°~ -86.8°(c=4, H2O)
痕量分析Trace analysis :
氯Cl < 200 ppm
硫酸根SO4 < 200 ppm
砷As < 1 ppm
氨基NH4 < 200 ppm
铁Fe < 10 ppm
透光度Transmittance >95 % (c=10, H2O, 430 nm) 1 cm cell
pH 5.5 ~ 7 (2.5% 溶液, 25°C)
Storage:
密封避光保存