详情介绍
L-缬氨酸
L-Valine
Cas 号: 【72-18-4】 M D L: MFCD00064220
L-缬氨酸分子式: C5H11NO2;(CH3)2CHCH(NH2)CO2H 分子量: 117.15
别 名: L-2-氨基-3-甲基丁酸
(S)-α-Aminoisovaleric acid
L-2-Amino-3-methylbutanoic acid
99% 500g
99% 100g
99% 25g
99% 5g
性 状: 白色结晶体或结晶粉末。无气味。有特殊味。能升华。溶于水、无机酸,几乎不溶于冷乙醇、氯仿和丙酮。水中溶解度:85 g/l (20°C),
密度:1.230
熔点:315℃(封管)
质量标准: 外观Appearance 白色粉末
红外光谱鉴别Infrared spectrometry 和对照品匹配
纯度Purity ≥99.0%
干燥失重Loss on drying <0.2 %
重金属Heavy metals (as Pb) <10 ppm
比旋度Specific rotation [a]20/D +27° - +29° (c=8, 6 N HCl)
痕量分析Trace analysis :
Cl < 200 ppm
SO4 < 300 ppm
NH4 < 200 ppm
Fe < 10 ppm
其它氨基酸Foreign amino acids <0.5 %
溶解性Appearance of solution (5% 溶解在10% HCl) 无色透明
贮 存: 密封阴凉保存。
用途 配制组织培养基。
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