L-Methionine CAS NO.63-68-3

moderate price & quick delivery.

L-Methionine Usage And Synthesis

Chemical Properties	White crystalline powder
Usage	Essential aminoacid for human development. Hepatoprotectant; antidote (acetominophen poisoning); urinary acidifier.
General Description	Minute hexagonal plates from dilute alcohol.
Air & Water Reactions	Reacts with water, steam, and/or acids to produce toxic and flammable vapors of hydrogen sulfide . Water soluble . pH of 1% aqueous solution is 5.6-6.0.
Reactivity Profile	An organosulfide and amine derivative, carboxylic acid. Look at Reactive Groups 20 (organosulfides), 7 (amines), and 3 (carboxylic acids) may give indications about reactive tendencies. L-Methionine is an amino acid essential in human nutrition.
Health Hazard	ACUTE/CHRONIC HAZARDS: L-Methionine is dangerous when heated to decomposition; it emits dangerous and highly toxic fumes.
Fire Hazard	Flash point data for L-Methionine is not available, but L-Methionine is probably combustible.

L-Methionine Preparation Products And Raw materials

Raw materials	Ammonium bicarbonate-->Acrolein-->Potassium sulfate -->Cupric acetate monohydrate -->METHYL MERCAPTAN-->Potassium bisulfate -->Storage tank
Preparation Products	L-(+)-Selenomethionine-->L-Leucine-->DL-Methionine-->H-TYR-GLY-GLY-PHE-MET-OH-->N-Acetyl-L-methionine