商品名:L-Methionine L-甲硫氨酸(L-蛋氨酸)
别 名:L-Methionine L-甲硫氨酸(L-蛋氨酸)L-蛋氨酸, L-2-氨基-4-甲硫基丁酸
(S)-2-Amino-4-(methylmercapto)butyric acid
L-2-Amino-4-(methylthio)butanoic acid
H-Met-OH
英文名:L-Methionine
产 地:湖南
Cas号:63-68-3
MDL:MFCD00063097
Beilstein:1722294
EINECS:200-562-9
分子结构:
分子式:C5H11NO2S
分子量:149.2100
备注:以上描述,仅作参考,并不表示您收到的产品,与此项描述完全相符,产品的出厂标准,请参见质量标准。
性状:白色或淡黄色结晶粉末 。溶于水、无机酸和热稀乙醇,水中溶解度: 53.7 G/L (20°C);不溶于无水乙醇、乙醚、苯、丙酮和石油醚。熔点:276~280℃(分解,闭管) [a]20/D +23.5°(c=2, 6 N HCl)
质量标准:外观Appearance 白色结晶或粉末纯度Purity ≥99.0% (HPLC) 比旋光度Specific rotation [a]20/D +23.5° ~ +25.5°(c=2, 6 N HCl) 干燥损失Loss on drying 重金属Heavy metals (as Pb) 硫酸盐灰分Sulfated ash pH 5.5 - 6.5 (2.5% 水溶液, 25°C) 品级Grade 非动物源,EP, JP, USP, 用于细胞培养, 99.0-101.0% (from non-animal source, meets EP, JP, USP, for cell culture, 99.0-101.0%) 来源Origin Non-Animal Source 外观Appearance White Powder 红外鉴别Identity by IR Conforms to Structure 可溶性Solubility Clear,2.5g to 100 mL H2O 比旋光度Specific rotation [a]20/D 23.0 - 24.0 ° EP/JP: c = 2 in 6M HCl 比旋光度Specific rotation [a]25/D 22.4 - 24.7 ° USP: c = 2 in 6M HCl 氯化物Chloride ≤ 0.020% 铵Ammonium ≤0.02% 硫酸根Sulfate ≤ 0.020% 铁Iron (Fe) ≤ ppm 重金属Heavy Metals(Lead) ≤ 10 ppm 砷Arsenic (As) ≤ 2 ppm 干燥失重Loss on Drying ≤0.20 % 灼烧残渣Residue on Ignition ≤0.10 mg 残留溶剂Residual Solvents USP Meets Requirements Expected Solvent Residual Solvent Meets Requirements 茚三酮阳性物质Ninhydrin-Positive Substances Conforms pH JP/EP 5.5 - 6.2 EP/JP: 2.5%, H2O, 20 deg C pH 5.6 - 6.1 USP: 1%, H2O, 25 deg C 含量Assay (Dry Basis) 99.0 - 101.0 % 内毒素Endotoxin Assay ≤1.0 EU/mg 细胞培养测试Cell Culture Test Pass 细胞株Cell Line Attached Cell Line
存储:密封避光保存。
用途:生化研究。
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