DL-Methionine
Molecular Structure:
MDL:
--MFCD00063096
Molecular Formula:
C5H11NO2S; CH3SCH2CH2CH(NH2)COOH
Molecular Weight:
149.21
Alias:
DL-蛋氨酸
(±)-2-Amino-4-(methylmercapto)butyric acid
DL-2-Amino-4-(methylthio)butanoic acid
Acimetion
Product order:
Name |
Specifications |
Packing |
Price |
Delivery |
DL-Methionine |
99% |
500g |
RMB 418 |
现货 |
DL-Methionine |
99% |
100g |
RMB 121 |
现货 |
Character:
溶于水、稀酸和稀碱,极微溶于95%乙醇,不溶于乙醚。溶解度: 2.9 G/100 G 水(20°C)
密度:1.340
熔点:281℃(分解)
Quality Standard:
外观Appearance 白色至米黄色粉末
红外光谱鉴别Infrared spectrometry 符喝
纯度Purity ≥99% (NT) (TLC)
干燥损失Loss on drying <0.2 %
重金属Heavy metals (as Pb) <10 ppm
灼烧残渣Res. after ignition <0.1 %
pH 5.6 ~ 6.1 (1% soln.25°C)
透光度Transmittance >95 % (c=10, 2 N HCl, 430 nm) 1 cm cell
Cl < 200 ppm
SO4 < 200 ppm
NH4 < 200 ppm
Fe < 10 ppm
其它氨基酸Other amino acids <0.2 % (TLC)
Storage:
密封避光保存。
用途 生化研究。