63-68-3 Top quality L-Methionine/CAS 63-68-3

CAS No.:63-68-3
Other Names:L(-)-Methionin
MF:C5H11NO2S
EINECS No.:200-562-9
Place of Origin:Hebei,China
Type:Antipyretic Analgesics and NSAIDs
Grade Standard:Medicine Grade
Usage:Pharmaceutical Intermediates

L(-)-Methionin

L-METHIONINE  cas 63-68-3 

Product Name: L-Methionine

Synonyms: (S)-(+)-2-amino-4-(methylthio)butyricacid;(s)-2-amino-4-(methylthio)butanoicacid;1-methionine;2-amino-4-(methylthio)butanoicacid;2-amino-4-(methylthio)-butyricaci;2-Amino-4-methylthiobutanoic acid;2-amino-4-methylthiobutanoicacid;Acimethin

CAS: 63-68-3

MF: C5H11NO2S

MW: 149.21

EINECS: 200-562-9

Product Categories: Amino Acids;Amino Acid Derivatives;Methionine [Met, M];Amino Acids and Derivatives;Amino Acids;Chiral Compound;Miscellaneous Compounds;Amino Acids & Derivatives;Sulfur & Selenium Compounds;amino

Mol File: 63-68-3.mol

 

L-METHIONINE  cas 63-68-3 specification;

 

Item Specifications Results
Appearance White crystal powder White crystal powder
Purity 99.0%-100.5% 99.75%
Identification Meets the requirements Conforms
Chloride(Cl) ≤0.02% <0.02%
Specific rotation[α]D

20

+23.0°~+24.5° +23.7°
Sulfate(SO4) ≤0.02% <0.02%
Iron(Fe) ≤10ppm <10ppm
Ammonium(NH4) ≤0.02% <0.02%
Heavy metals, as Pb ≤10ppm <10ppm
Loss on drying ≤0.20%

0.11%

Residue on ignition ≤0.10% 0.06%
pH 5.6~6.1 5.9
Other amino acids Meets the requirements Conforms