L-Methionine

Cas No. :63-68-3

Packaging & Delivery

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

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:
Safety Description:
S24/25:;