更新時間:2016-06-17
L-谷氨酸,我們提供多級別、多規格、不同包裝的生化試劑,溫馨提示,公司生化試劑用于科研,不用于臨床實驗。
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L-谷氨酸
L(+)-Glutamic acid
Cas 號: 【56-86-0】 M D L: MFCD00002634
L-谷氨酸分子式: C5H9NO4;HO2CCH2CH2CH(NH2)CO2H 分子量: 147.13
別 名: L-2-氨基戊二酸;L-α-氨基戊二酸
L-Glutamic acid
(S)-2-Aminopentanedioic acid
Glu
99% 100g
99% 500g
99% 1kg
性 狀: 白色結晶性粉末、幾乎無臭 , 有特殊滋味和酸味。難溶于水,溶于12分水,1500分醇,40分二氧六環,不溶于丙酮、氯仿、乙醇、冷乙酸,極易溶于甲酸。200℃開始升華,247-249℃分解。飽和水溶液的PH值約3.2。溶解度(g/100g 水);0.72(20℃),1.51(40℃),3.17(60℃),6.66(80℃)。
密度:1.538
熔點:205 °C
質量標準: 外觀Appearance 白色粉末
紅外光譜鑒別Infrared spectrometry 和對照品匹配
純度Purity ≥99% (以干基計)
干燥損失Loss on drying <0.5 % (105°C, 3 小時)
重金屬Heavy metals (as Pb) <10 ppm
其它氨基酸Other amino acids 未檢測到
比旋度Specific rotation [a]20/D +30.5°~ +32.5°(以干基計) (c=10, 2N HCl)
痕量分析Trace analysis :
Cl < 200 ppm
Fe < 30 ppm
SO4 < 300 ppm
NH4 < 200 ppm
As2O3 < 1 ppm
貯 存: 密封保存。
用途 生化研究。
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