L-METHIONINE

[Product Name]: L-METHIONINE
[Other Name]: L-MET, L-2-AMINO-4-METHYLTHIOBUTYRIC ACID
[Molecular Formula]: C5 H11 NO2 S
[Structural Formula]: CH3 SCH2 CH2 CH(NH2 )COOH
[Molecular Weight]: 149.21
[CAS]: 63-68-3
[EINECS]: 200-562-9
[Description]: White crystals or crystalline powder, special odor, slightly bitterness. Soluble in water, insoluble in ethanol and in ether.
[Standard]: Pharma Grade USP38, Food Garde FCCV, or according to buyer's requirements.

Item
Pharma Grade (USP38)
Food Grade (FCCV)

Appearance

White crystal powder

White crystal powder

Assay(on dry basis)

98.5~101.5%

98.5~101.5%

Specific rotation

+22.4º~+24.7º

+21.0º~+25.0º

pH

5.6~6.1

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Loss on drying

NMT 0.3%

0.5% MAX

Residue on ignition

NMT 0.4%

0.1% MAX

Chloride

NMT 0.05%

--

Sulfate

NMT 0.03%

--

Iron

NMT 30ppm

--

Lead

--

5mg/kg MAX

Related compounds

Individual impurities: NMT 0.5%
Total impurities: NMT 2.0%

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Usage: It is an essential amino acids, generally used as a nutritional supplement.
Packing: In fiber drum 25KG net each.
Transport and Storage: Handle with cares to avoid damaging the package, protect them from sunshine or rain. Donít transport it with poisonous or harmful goods. Stored in shaded, cool and dry places.

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