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L-瓜氨酸
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更新时间:2016-06-03  |  阅读:1146

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L-瓜氨酸
L-Citrulline
Cas 号: 【372-75-8】 M D L: MFCD00064397
L-瓜氨酸分子式: C6H13N3O3 分子量: 175.2
别 名: L(+)-2-氨基-5-脲戊酸,脲氨基戊酸
(S)-2-Amino-5-ureidopentanoic acid
L-2-Amino-5-ureidovaleric acid
L-Cit-OH
H-Cit-OH
98% 5g
98% 25g
98% 100g
性 状: 水中溶解度:200 G/L (20°C),不溶于甲醇和乙醇。
熔点:215℃
[α]20D 26 ° (c=8, 6 N HCl)
质量标准: 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% (TLC)
水溶解试验solubility in water 合格
比旋光度Specific rotation [a]20/D +25.0 ~ +27.0° (c=8, 6 N HCl)
干燥损失Loss on drying <0.5 %
灼烧残渣Res. after ignition <0.1 %
重金属Heavy metals <20 ppm
透光率Transmittance >95 % (c=10, H2O, 430 nm) 1 cm cell
相关物质Related substances <0.5 % (TLC)
贮 存:
用途 NO合成酶催化从L-精氨酸生产NO中,是中间体。
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