Chemical industry portal


Product name methionine
Synonyms 2-amino-4-methylthiobutanic acid pharmaceutical grade
GOST no data
CAS 59-51-8

Methionine (2-Amino-4-(methylmercapto)butyric acid, 2-amino-4-(methylsulfanyl)-butanoic acid, Met, M) is a colorless crystalline compound with a specific unpleasant odor. It is soluble in water and boundedly soluble in ethanol; almost insoluble in higher alcohols, diethyl ether, acetone, benzene. Methionine contains asymmetryc carbon atom, thus, there are two optical isomers of methionine - L- and D-forms respectively. Synthetic D,L-methionine is a racemic mixture. L-methionine is an essential amino acid, it cannot be synthesized in humans, therefore it must be obtained from food. Mammals can assimilate D-methionine as well converting it into L-isomer.


Industrially, racemic D,L-methionine is produced from 3-methylthiopropanoic aldehyde.


  • as an animal feed additive;
  • as a pharmaceutical to treat and to prevent illness of liver, to prevent atherosclerosis.

  • Manufacturer(s) JSC Volzhsky Orgsynthese
    Chemical structure of DL-methionine

    Find chemicals by name, GOST or CAS number

    Russian version
    Unauthorized copying, processing or reproduction of any and all information published on this website prohibited.
    © 2000-2010 All rights reserved
    Powered by CHEMINDUSTRY.RU group
    Contact us