DL-Methionine

CAS No. 59-51-8
Other Names Methionine
MF C5H11NO2S
EINECS No. 200-562-9
Place of Origin Zhejiang, China (Mainland)
Type Vitamins, Amino Acids and Coenzymes

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DL-Methionine Details

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Item	Specifications
Item	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.	No

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