Specifications and Other Information of Our L-(+)-Selenomethionine CAS 3211-76-5
Assay
98.0%-102.0%
Identification Method
HNMR, MS, HPLC
Optical rotation20℃/D(C=1, 1N HCl)
+16.5°~+20°
D-Isomer content
0.05% max
Arsenic
1 ppm max
Cadmium
1 ppm max
Mercury
0.1 ppm max
Lead
3 ppm max
Water
0.5% max
Biochem/physiol Actions
Selenomethionine displays antioxidant activity and has been shown to increase the activity of glutathione peroxidase in endothelial cells. Glutathione peroxidase protects cells from oxidative damage, such as DNA strand breaks, mutations and interference with protein tyrosine-based signaling and other protein functions due to formation of 3-nitrotyrosine, caused by excessive peroxynitrite. Selenomethionine administration to cancer cell lines (MCF-7/S breast carcinoma, DU-145 prostate cancer cells and UACC-375 melanoma) results in apoptotic cell death and aberrant mitosis. These human tumor cell lines exhibited dose-dependent growth inhibition by selenomethionine in the micromolar range (45 to 130 μM), while growth inhibition of normal fibroblasts required 1 mM selenomethionine.
Productivity
1kg/month
Storage Tempeature
Transport at room temperature, long-term preservation at 0 ~ 5°
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andD purpose. It may be toxic or hazardous, and should be handled only by qualified individuals trained in laboratory procedures. The buyer will be responsible to warn and inform any person that may be in contact with the product of the potential risks and hazards, as well as to ensure that purchase, use and disposal of the product comply with local laws and regulations.