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L-Methionine

Inquiry
  Post Date: Aug 14,2014
  Expiry Date: Feb 10,2015
  Detailed Description: Cas No. :63-68-3

Packaging & Delivery

Packaging Details: 25kg cardboard drum *or as client's requirement.
Delivery Detail: 15 days after the payment.

Specifications

L-Methionine
1 Characteristics: white crystalline powder
2 assay:98.5%
3 standard: usp24

Basic Information:

Product Name:

L-Methionine

Synonyms:

(S)-2-Amino-4-(methylthio)butyric acid; 

H-Met-OH; 

L-Methionine, USP Grade;

(L)-S-methylhomocysteine; 

2-Methyl Eneghlutaronitrile; Methionine

CAS RN.:

63-68-3

EINECS:

200-562-9

Molecular Weight:

149.21

Molecular Formula:

C5H11NO2S

Melting Point(°C):

276-279°C (dec.)

Water Solubility:

Soluble

 

 

 

Specifications:

 

Item

Limits

Description

White Crystals or Crystalline Powder

Identification

Conforms

Transmittance

98.0% Min

Specific Rotation [a]D20o

+22.4°to +24.7°

State of Solution

98.0%Min

Chloride (Cl)

0.020%Max

Ammonium (NH4)

0.02%Max

Sulfate (SO4)

0.020%Max

Iron (Fe)

30ppm Max

Heavy Metals (Pb)

1.5ppm Max

Arsenic (As2O3)

1ppm Max

Other Amino Acids

Not Detectable

Loss on Drying

0.30%Max

Residue in Ignition

0.40%Max

PH

5.6 to 6.1

 

 

 

 

 

Application:

DL-Methionine is a kind of important amino acid . It's mainly used in compounding medicines and infusion solution of compounded amino acid.

 

In pharmaceutical industry, its synthetic medicines are used for treating cirrhosis ,

drug intoxication, etc.

 

  CAS Registry Number:

63-68-3
  Synonyms: ;(S)-2-Amino-4-(methylthio)butyric acid;H-Met-OH;L-Methionine, USP Grade;(L)-S-methylhomocysteine;2-Methyl Eneghlutaronitrile;Methionine;
  Molecular Formula: C5H11NO2S
  Molecular Weight: 149.21
  Molecular Structure: 63-68-3 L-Methionine
  Safety Description: S24/25:;

  Company: Anyang Criss chemicals Co,.ltd.     [ China ]        
  Contact: Mr zhang
  Tel: 86-372-5055727
  Fax: 86-372-5055727
  Email: crisschem@hotmail.com
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