DL-Methionine

Chemical Name：

DL-2-Amino-4-methylthiobutyric acid 

Structure Formula：

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.

The Characteristics and Uses：

It is mainly used as animal essential amino acid in fish meal and additive of chickens, pigs and cows in order to keep animal and fowl growing healthily. It can improve the milky ability of cows , prevent the occurrence of hepatosis. besides these, it can also be used as amino acid medicines, injection solution a nutritional infusion, the agent of protective liver, the therapy liver cirrhosis and toxic hepatitis.

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.