L-Threonine
Molecular Structure:
MDL:
MFCD00064270
Molecular Formula:
C4H9NO3; CH3CH(OH)CH(NH2)CO2H
Molecular Weight:
119.13
Alias:
L-α-氨基-β-羟基丁酸,L-羟基丁氨酸,L-异赤丝藻氨基酸
(2S,3R)-2-Amino-3-hydroxybutyric acid
L-2-Amino-3-hydroxybutyric acid
Product order:
Name |
Specifications |
Packing |
Price |
Delivery |
L-Threonine |
98% |
25g |
RMB 33 |
Consulting service |
L-Threonine |
98% |
100g |
RMB 88 |
Consulting service |
L-Threonine |
98% |
500g |
RMB 418 |
Consulting service |
L-Threonine |
98% |
1kg |
RMB 748 |
Consulting service |
Character:
白色结晶体或结晶粉末。溶于水,不溶于无水乙醇、乙醚和氯仿等大多数有机溶剂。半数致死量(大鼠,腹腔)3098mg/kg.水中溶解度:90 g/L (20°C)
熔点:255℃(分解)
[a]20/D: -28.3° (c=6, H2O)
Quality Standard:
外观Appearance 白色结晶粉末
红外光谱鉴别Infrared spectrometry 和对照品匹配
纯度Purity ≥98.0% (以干基计)
干燥损失Loss on drying <0.2 % (1 g, 105°C, 3 小时)
重金属Heavy metals (as Pb) <10 ppm
硫酸盐灰分Sulfated ash <0.1 %
比旋度Specific rotation [a]20/D -27.6°~ -29° (c=6, H2O)
痕量分析Trace analysis :
Cl < 200 ppm
SO4 < 200 ppm
溶解性Appearance of solution (2.5% 水溶液.) 无色透明
Storage:
密封干燥保存。
用途 生化研究。制备组织培养基。