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L-茶氨酸
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更新时间:2016-06-07  |  阅读:1170

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L-茶氨酸
L-Theanine
Cas 号: 【3081-61-6】 M D L: MFCD00059653
L-茶氨酸分子式: C7H14N2O3 分子量: 174.2
别 名: Nγ-Ethyl-L-glutamine
L-Glutamic acid γ-(ethylamide)
99% 1g
99% 5g
98% 25g
98% 100g
性 状: 是一种谷氨酰胺类氨基酸类似物,存在于绿茶中。溶于水。无臭,具略带甜味的*滋味。天然品较多存在于上等绿茶中(可达2.2%)
熔点:217-218℃(分解)
质量标准: 98%:
外观Appearance 白色结晶体
含量assay 98.0-101.0%
氯含量(CL)chlorine,% ≤0.10%
重金属(铅)Heavy metals(as Pb) ≤10 PPM
干燥失重Loss on drying,% ≤0.20
项目 高纯级
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% (TLC)
比旋光度Specific rotation [a]20/D +7.0 ~ +8.0°(C=1, H2O)
干燥损失Drying loss ≤0.5 %
贮 存: 用途 能够结合到小鼠皮质神经元AMPA、kainite、和NMDA 甘氨酸受体,对谷氨酸无亲和性;高纯级用于分子生物学研究。
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