L-Methionine
Chemical Name：Amino methylthiohufanoic acid
Molecular Formula：C5H11NO2S
Molecular Weight：149.21
Cas No：[63-68-3]
Characteristics：White, lustrous, or a white ,crystalline powder. It has a slight, characteristic odor. It is soluble in water, in alkali solutions, and in dilute mineral acids. It is slightly soluble in alcohol and practically insoluble in ether.
Quality Standards：AJI97
Item | Specification (AJI97) |
Appearance | White crystals or crystalline powder |
Assay, % (on dry matter) | 98.5~101.5 |
Specific rotation | +21.9°~+24.1° |
pH value | 5.6~6.1 |
Loss on drying, % | ≤0.3 |
Heavy metals, % | ≤0.0015 |
Residue on ignition, % | ≤0.4 |
Chloride,% | ≤0.05 |
Sulfate,% | ≤0.03 |
Arsenic, % | ≤0.00015 |
Iron, % | ≤0.003 |
Package and Transport：This product is contained in a double-layer package, the inner layer being a sealed non-poisonous polyethylene bag or aluminium foil, and the outer layer being a 25kg drum. Packages may be arranged in accordance with customer’s requirements.
Storage：Stored in dry, clean and ventilated places. Protect it from moisture, heat or sunshine. In order to avoid pollution, it is prohibited to place this product together with poisonous or harmful substances. The expiry date is for two years.
Hebei Huaheng Biological Technology Co., Ltd
TEL：0318-8628255
FAX：0318-8628286
Email：info@jizhouhuaheng.com
Address：No.777 Xinghua South Street,Jizhou City,Hebei Pro.,China
