Selenomethionine Powder Raw Materials CAS 1464-42-2

MF:C5H11NO2Se

MW:196.11

EINECS:215-977-0

Specification:Selenomethionine Powder

Sample:Selenomethionine Powder

Brand:Selenomethionine Powder

Appearance: white Powder

Storage: Cool Dry Place

Brand: Globalchemical

Shelf Life: 2 Years

Test Method: HPLC

Uses and synthesis of Selenomethionine Powder

Selenomethionine Raw Materials have different configurations due to the presence of chiral centers. The physiological activities and bioavailability of Selenomethionine Powder vary greatly from one configuration to another. In general, only the L-configuration of selenoamino acids can be absorbed and utilized by living tissues, while Selenomethionine CAS 1464-42-2 may be more harmful to human body.

The selenoamino acids prepared by conventional chemical synthesis are generally DL-racemic compounds, which must be optical Selenomethionine Powder to be used as additives in food, feed and pharmaceutical applications.

Applications / Functions of Selenomethionine Powder

Selenomethionine CAS 1464-42-2 is used as a pharmaceutical and healthcare intermediate and feed additive.

Physicochemical Property of Selenomethionine Powder

Colorless transparent hexagonal flaky crystals with metallic luster, Selenomethionine Powder is soluble in water and methanol. Intermediate of medicine and health products, feed additive.

Production methodprocess of Selenomethionine Powder

Synthesis of Selenomethionine Raw Materials: using alkali metal carbonate-containing alcoholic solvents as the reducing reaction medium, said alkali metal carbonate-containing alcoholic solvents are methanol, ethanol, propanol, isopropanol, butanol or a combination of one or more of them containing potassium carbonate or/and sodium carbonate.

The purified dimethyldiselenide of step (2) is reacted with hydrazine hydrate and a catalyst at a temperature of 5 to 15°C for 0.5 to 2h to generate sodium metaselenol, and the molar ratio of hydrazine hydrate to dimethyldiselenide is 1 to 2, and then the sodium metaselenol, and α-amino-γ-butyrolactone hydrobromide at a molar ratio of 1 to 1.5 to figure the sodium metaselenol, are reacted at reflux by heating to 60 to 65°C for 6h, and then added to the sodium selenide in the form of DL-seleno Methionine meter molar ratio of 0.5 to 500 water for hydrolysis and adjusting its pH 5 to 6, and dehydration to obtain Selenomethionine CAS 1464-42-2 , wherein said catalyst comprises carbon powder and/or ferric chloride, and the molar ratio to dimethyldiselenide is 0.05 to 0.1;