L-Methionine CAS NO.63-68-3

Product Details

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quality: adopting fermentation technology to assure the high quality. no-animal raw material

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l-methionine basic information

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 chemical properties

mp	284 °c (dec.)(lit.)
alpha	23.25 º (c=2, 6n hcl)
density	1,34g/cm
storage temp.	store at rt.
solubility	1 m hcl: 0.5 m at 20 °c, clear, colorless
water solubility	soluble
merck	14,5975
brn	1722294
stability:	stable. incompatible with strong oxidizing agents.
cas database reference	63-68-3(cas database reference)
nist chemistry reference	l-methionine(63-68-3)
epa substance registry system	l-methionine(63-68-3)

safety information

msds information

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