DL-Methionine

Products > D-AMINO ACID > DL-Methionine

DL-Methionine

CAS NO:59-51-8

Chemical Name DL-Methionine
 Molecular Structure 0c27568681e898b9a781593cf183fe66.jpg
Molecular Formula C5H11NO2S
Molecular Weight 149.21
 Characteristics White crystalling powder
 Packing 25㎏/drum,25㎏/carton
 Quality  Standard AJI92/USP28/EP5/FCCIV
Specification   
 State of solution≥98.0%
Chloride(CI)  ≤0.020%
Ammonium(NH4) ≤0.02%
 Sulfate(SO4) 
 Heavy metals(Pb)  ≤10PPm
Iron(Fe)≤10PPm
 Arsenic(As2O3)  ≤1PPm
Other amino acidsChromatographically not detectable
 Residue on ignition ≤0.10%
 Loss on drying  ≤0.30%  
Assay   99.0~100.5%
 PH 5.6~6.1