DL-Methionine

DL-Methionine (CAS: 59-51-8) is an organic compound belonging to the amino acid family, specifically the racemic form (DL-configuration) of methionine, an essential sulfur-containing amino acid. It is a racemic mixture of L-methionine and D-methionine, containing a central chiral carbon atom (racemic configuration), a carboxyl group (-COOH), an amino group (-NH2), and a side chain with a methylthio group (-SCH3) . It has good chemical stability under normal storage conditions, moderate water solubility, and typical amino acid reactivity (such as condensation, esterification, and sulfide group oxidation reactions) . DL-Methionine (CAS: 59-51-8) is an important essential amino acid intermediate widely used in the synthesis of pharmaceuticals, food additives, feed supplements, cosmetic raw materials and fine chemicals due to its unique racemic structure, sulfur-containing functional group, and high biocompatibility. DL-Methionine (CAS: 59-51-8) is particularly valued for its racemic (DL) configuration, sulfur-containing side chain, and essential amino acid properties. The racemic configuration is easy to synthesize on a large scale, with lower production costs compared to single L-configuration, making it suitable for industrial-scale applications; the methylthio group (-SCH3) is a unique functional group that participates in various biological reactions and chemical syntheses, enhancing the versatility of the compound; as an essential amino acid, it has good biocompatibility, making it widely applicable in pharmaceutical, food and feed fields. These characteristics make it a versatile intermediate in multiple high-value chemical and biological fields, especially in feed additives, pharmaceutical synthesis and cosmetic raw materials.

DL-Methionine, DL-2-Amino-4- (methylthio) butanoic acid, DL-2-Amino-4-methylthiobutanoic acid, (±) -Methionine, DL-Methioninum, 2-Amino-4- (methylthio) butyric acid

1. Feed Additives: DL-Methionine (CAS: 59-51-8) is widely used as a nutritional fortifier in the feed industry, supplementing essential sulfur-containing amino acids for livestock, poultry and aquatic animals. It promotes animal growth, improves feed conversion rate, enhances immunity and meat quality, and is an indispensable additive in feed formulations for chickens, pigs, fish and other animals. 2. Pharmaceutical Intermediates: DL-Methionine (CAS: 59-51-8) is applied in the synthesis of amino acid-based drugs, peptide drugs, and nutritional supplements. It is used in the preparation of parenteral nutrition preparations, liver-protective drugs, and anti-fatigue drugs; its sulfur-containing side chain also serves as a key intermediate for the synthesis of anti-tumor, anti-inflammatory and antiviral drugs, improving drug bioactivity. 3. Fine Chemicals & Food Additives: DL-Methionine (CAS: 59-51-8) is used as a nutritional fortifier in the food industry, supplementing essential amino acids for human body, improving the nutritional value of food. It is also applied in the production of food flavor enhancers, condiments and health food raw materials, with good safety and biocompatibility. 4. Cosmetic Raw Materials & Chemical Research: DL-Methionine (CAS: 59-51-8) is used in the formulation of skin care products, with moisturizing, anti-aging and antioxidant effects, helping to repair skin barrier and improve skin texture. In chemical research, it is a common reagent in organic synthesis, biochemistry and molecular biology, widely used in laboratory-scale peptide synthesis, amino acid metabolism research and chiral synthesis experiments.

≥98%

C5H11NO2S

149.21

Store in a cool, dry, well-ventilated warehouse away from oxidizing agents, open flames and direct sunlight; keep sealed tightly to avoid moisture absorption, dampness and contact with strong acids/bases, avoid exposure to air for a long time and high temperature (prevent decomposition), avoid contact with reducing agents and heavy metals, store at 0-10°C to maintain stability, avoid mixing with toxic and harmful substances, prevent mold growth

White crystalline powder, odorless, slightly bitter taste, soluble in water

1.340 g/cm3 (25°C)

281-283°C (decomposes)