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L-Selenomethionine is a naturally-occurring amino acid found in grains, nuts, and legumes. L-Selenomethionine exhibits antioxidative and chemopreventive activities, although clinical studies show inconsistent data on potential health benefits. In some models, L-selenomethionine delays development of UV-induced tumors.
| Cas No. | 3211-76-5 |
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| Purity | ≥98% |
| Formula | C5H11NO2Se |
| Formula Wt. | 196.11 |
| Chemical Name | (S)-2-amino-4-(methylseleno)-butanoic acid |
| IUPAC Name | (2S)-2-amino-4-methylselanylbutanoic acid |
| Synonym | Selenium methionine, Selenomethionine |
| Melting Point | 265°C(dec.) |
| Solubility | Soluble in water. Slightly soluble in methanol. |
| Appearance | White or Almost White Crystalline Solid |
| Store Temp | -20°C |
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| Ship Temp | Ambient |
| MSDS | |
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| Info Sheet |
Cassidy PB, Fain HD, Cassidy JP Jr, et al. Selenium for the prevention of cutaneous melanoma. Nutrients. 2013 Mar 7;5(3):725-49. PMID: 23470450.
Ware JH, Zhou Z, Romero-Weaver AL, et al. Effects of selenomethionine in irradiated human thyroid epithelial cells and tumorigenicity studies. Nutr Cancer. 2011;63(7):1114-21. PMID: 21916697.
Dennert G, Zwahlen M, Brinkman M, et al. Selenium for preventing cancer. Cochrane Database Syst Rev. 2011 May 11;(5):CD005195. Update in: Cochrane Database Syst Rev. 2014;3:CD005195. PMID: 21563143.