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Shijiazhuang Jirong Pharmaceutical Co.,Ltd.

18 YRS

Hebei, China

CNY 80 Million

33300 m²

Less than 50 people

Main Products: L-Valine / Glycine / L-Glutamic Acid / L-Lysine Hydrochloride / DL-Methionine / L-Threonine / L-Tryptophan / L-Phenylalanine / L-Alanine / L-Arginine

Hebei, China

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DL-Methionine / CAS 59-51-8

OVERVIEW

Packaging

25 KG/Fibre Drum

Lead Time

14-30 days

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DESCRIPTION

DL-Methionine

CAS No.: 59-51-8

Molecular formular: C₅H₁₁NO₂S

Molecular weight: 149.21

DL-Methionine	AJI92	EP4
Description	White crystals or crystalline powder	White crystals or crystalline powder
Identification	Conform	Conforms to the requirements
Assay	99.0%~100.5%	99.0%～101.0%
pH	5.6~6.1	5.4～6.1
Transmittance	≥98.0%	/
Loss on drying	≤0.30%	≤0.5%
Residue on ignition	≤0.10%	≤0.1%
Chloride	≤0.020%	≤0.02%
Heavy Metals	≤10ppm	≤0.001%
Iron	≤10ppm	/
Sulfate	≤0.020%	≤0.02%
lead[Pb]	/	/
Arsenic	≤1ppm	≤0.0001%
Ammonium	≤0.02%	≤0.02%
Other amino acids	None	/
Pyrongen	Conforms	/
Clear and colorless	/	Clear, colorless
Related substance	/	Meets with the requirements
Particle size	/	≥95%--＜50um- ≥1.0%≥100um

Typical Properties

Methionine is one of nine essential amino acids in humans (provided by food), Methionine is required for growth and tissue repair. A sulphur-containing amino acid, methionine improves the tone and pliability of skin, hair, and strengthens nails. Involved in many detoxifying processes, sulphur provided by methionine protects cells from pollutants, slows cell aging, and is essential for absorption and bio-availability of selenium and zinc. Methionine chelates heavy metals, such as lead and mercury, aiding their excretion. It also acts as a lipotropic agent and prevents excess fat buildup in the liver.

CAS No.

59-51-8

Formula

C5H11NO2S

Molecular Mass

149.21100

Exact Mass

149.05100

PSA

88.62000

Logp

0.85170

IUPAC

2-amino-4-methylsulfanylbutanoic acid

SMILES

CSCCC(C(=O)O)N

Matter Classification

organic

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