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L-amino acids
L-Cystine
L(+)-Cysteine
L-Cysteine hydrochloride anhyd
L-Cysteine hydrochloride monoh
L-Tyrosine
L-Leucine
L-Valine
L-PHENYLALANINE
L(+)-Citrulline
L-Serine
L-Histidine
D/DL-amino acids
N-acetyl amino acid
Other amino acid products
 
 

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Product Name: L-Methionine
Medicines: --
Properties: white crystal or crystal powder
Formula:

C5H11NO2S
Weight: 149.21
Cas   No: 63-68-3
 
   Product Description:
 

Packing: inner double layer plastic film, outer fiber can; 25kg/drum
Storage: 2 years

【Quality Standard】

Item

USP 26

feed grade

Assay

99.0～101.0%

98%

pH

5.6～6.1

5.6～6.1

Specific rotation[a]D020

     +23.0°～+24.5°

     +23.0°～+24.5°

Chloride(Cl)

≤0.02%

 

Ammonium(NH4)

≤0.02%

 

Sulfate(SO4)

≤0.02%

 

Iron(Fe)

≤10ppm

 

Heavy metals(Pb)

≤10ppm

 

Arsenic(As)

≤1ppm

 

Other amino acids

conforms

 

Loss on drying

≤0.30%

≤0.30%

Residue on ignition

≤0.10%

≤0.10%


 

Main uses : used for biochemical study and nutritional supplement; for the cure of pneumonia, hepatocirrhosis and fatty liver
 
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