Shijiazhuang Shixing Amino Acid Co.,Ltd.

DL-ALANINE

[Product Name]: DL-METHIONINE
[Other Name]: DL-2-AMINO-4-METHYLTHIOBUTYRIC ACID
[Molecular Formula]: C₅H₁₁NO₂S
[Structural Formula]: CH₃SCH₂CH₂CH(NH₂)COOH
[Molecular Weight]: 149.21
[CAS]: 59-51-8
[EINECS]: 200-432-1
[Description]: White flake crystal powders, have a special smell, bulk density 1.34g/cm3, melting at 281 ºC. It’s soluble in water, slightly soluble in alcohol, belongs to sulfur amino acid and non-toxic.
[Standard]: Pharm Grade USP38, Food Grade FCCV, or according to buyer's requirements.

Item	Pharm Grade (USP38)	Food Grade (FCCV)
Appearance	White flake crystal powders	White flake crystal powders
Assay(on dry matter)	99.0~101.0%	98.5~101.5%
Residue on ignition	NMT 0.1%	0.1% MAX
Chloride	NMT 200ppm	--
Sulfate	NMT 200ppm	--
Limit of Iron	NMT 10ppm	--
Limit of Ammonium	NMT 200ppm	--
Related substances	Individual impurity: NMT 0.2%	--
pH	5.4~6.1	5.6~6.1
Transmittance	NLT 0.98	--
Loss on drying	NMT 0.5%	0.5% MAX
lead	--	5mg/kg MAX

Usage: Generally used as a nutritional supplement.
Packing: In kraft paper bags or in fiber drum of 25KG net each.
Transport and Storage: Handle with cares to avoid damaging the package, protect them from sunshine or rain. Don’t transport it with poisonous or harmful goods. Stored in shaded, cool and dry places.

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