DL-Methionine
Chemical Name：DL-2-Amino-4-methylthiobutyric acid
Molecular Formula：C5H11N02S
Molecular Weight：149.21
Cas No：[59-51-8]
Characteristics：White, crystalline platelets or powder having a characteristic odor. One g dissolves in about 30 ml of water. It is soluble in dilute acids and alkali hydroxides in solutions. It is very slightly soluble in alcohol, and practically insoluble in ethyl ether.
Quality Standards：FCCIV, EP4 and BP2001 etc.
Item | Specifications | |
EP4/BP2001 | FCCIV | |
Appearance | White crystalline platelets or powder | |
Assay (C5H11NO2S),%(on dry matter) | 99.0~101.0 | 98.5~101.5 |
Clarity of solution, | Clear | Clear |
Transmittance, % (2.5%, 430ml) | ≥98.0 | - - - |
pH Value(5% in water) | 5.4~6.1 | 5.6~6.1 |
Heavy Metals (as Pb), % | ≤0.001 | ≤0.002 |
Arsenic (as As), % | ≤0.0001 | ≤0.0002 |
Sulfate (as SO4), % | ≤0.02 | ≤0.02 |
Chloride (as Cl),% | ≤0.02 | - - - |
Loss on drying, % | ≤0.5 | ≤0.5 |
Residue on ignition, % | ≤0.1 | ≤0.1 |
Ammonium as (as NH4), % | ≤0.01 | - - - |
Other amino acid | Not detd. | Not detd. |
Package and Transport：Packed with a polyethylene bag for the inner layer and a Kraft paper board barrel for the outer layer, net weight 20kg/drum. Packaging may be arranged according to the requirement of the client.
Handle with care in order to avoid damaging the package. Protect them from sunshine and rain. Do not transport them together with poisonous or harmful goods. This product is a non-dangerous product and can be transported as a general chemical product.
Storage：Store in cool, shaded, dry and clean places. Do not store it together with poisonous or harmful goods in order to avoid pollution. The limit of retained quality 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
