L-selenomethionine CAS NO.3211-76-5

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Min.Order: 1000 Gram
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Product Details

Keywords

L-selenomethionine
Se-methionine; SeMet; L(+)-Selenomethionine; (S)-2-Amino-4-(methylselanyl)butanoic acid; (S)-2-Amino-4-(Methylseleno)Butyric Acid; Selen
3211-76-5

Quick Details

ProName: L-selenomethionine
CasNo: 3211-76-5
Molecular Formula: C5H11NO2Se
Appearance: appearance White powder
Application: Widely used in cosmetics, medicine, be...
DeliveryTime: 3day
PackAge: 1000 g/aluminum foil bag
Port: tianjin china
ProductionCapacity: 10 Metric Ton/Month
Purity: 99.5（%）
Storage: Dry and ventilated
Transportation: shipping
LimitNum: 1000 Gram
Moisture Content: PH (0.1% aqueous solution) : 6.0 ~ 7.5
Impurity: Protein: 0.1% or less
Light transmittance (0.1% aqueous solution) : 0.1% or greater: Light transmittance (0.1% aqueous solu...

Superiority

chengdu and import and export trade co., LTD., who registered capital of 10 million yuan, nearly to $2 million, we have a pharmaceutical raw materials factory production of pharmaceutical raw materials, and a reagent r&d center, and we do research and development production of reagent tens of thousands of species. our aim is quality strives for the survival. Seek development by credit reputation. Our products have big price advantage in Europe South America and so on .and Our company also has the advantage of high quality in Africa. in the past two years our products has reached more than 30 countries in the world, Europe. South America. North America, southeast Asia, Africa, etc. We welcome all over the world with the best quality and lowest price friend common cooperation and common development!The quality of our products meet all international standards, the German advanced equipment are imported equipment two laboratories, individual, on scale management concept, our aim is;With the highest quality. The lowest price. The best service to meet the new and old customers around the world, develop together for a better future!

Details

Keywords

L-Selenomethionine
L-(+)-Selenomethionine
Selenomethionine

Quick Details

ProName: L-Selenomethionine hot sale
CasNo: 3211-76-5
Appearance: off-white to white powder
Application: for research
DeliveryTime: prompt
PackAge: aluminum foil bag, carton, customized
Port: Shanghai, HongKong
ProductionCapacity: 50 Kilogram/Month
Purity: 98%
Storage: in cool and dry place
Transportation: EMS,DHL,FedEx,TNT,HKEMS,HKDHL
LimitNum: 10 Gram
Related Substances: L-Selenomethionine
Residue on Ignition: NA
Heavy Metal: NA
Valid Period: NA

Superiority

1, factory price, top quality guaranteed

2,prompt & fast delivery via DHL, FEDEX, TNT, HKEMS, HKDHL, EMS, etc

3, COA/HPLC/HNMR available

4, reliable provider & satisfactory service

Details

Product name	L-(+)-Selenomethionine
Chemical name	(S)-(+)-2-AMINO-4-(METHYLSELENO)BUTANOIC ACID;(S)-2-AMINO-4-(METHYLSELENO)BUTYRIC ACID;SEMET;SELENOMETHIONINE, L-(+)-;SELENO-L-METHIONINE;L-(+)-2-AMINO-4-(METHYLSELENO)BUTANOIC ACID;L-(+)-SELENOMETHIONINE;L-SELENOMETHIONINE
CAS NO.	3211-76-5
Formula	C5H11NO2Se
Color	white powder
Application	easier for the human body to absorb than selenite and is absorbed 19% better than selenite

About L-(+)-Selenomethionine

Selenomethionine is a naturally occurring amino acid containing selenium. The L-enantiomer of selenomethionine, known as L-selenomethionine, is a common natural food source of selenium and is the predominant form of selenium found in Brazil nuts, cereal grains, soybeans, and grassland legumes, while Se-methylselenocysteine, or its γ-glutamyl derivative, is the major form of selenium found in Astragalus, Allium, and Brassica species. In vivo, selenomethionine is randomly incorporated instead of methionine. Selenomethionine is readily oxidized. Its antioxidant activity arises from its ability to deplete reactive oxygen species. Selenium and sulfur are chalcogens that share many chemical properties so the substitution of methionine with selenomethionine may have only a limited effect on protein structure and function. However, the incorporation of selenomethionine into tissue proteins and keratin in horses causes alkali disease. Alkali disease is characterized by emaciation, loss of hair, deformation and shedding of hooves, loss of vitality, and erosion of the joints of long bones.

Incorporation of selenomethionine into proteins in place of methionine aids the structure elucidation of proteins by X-ray crystallography using single- or multi-wavelength anomalous diffraction (SAD or MAD). The incorporation of heavy atoms such as selenium helps solve the phase problem in X-ray crystallography.