rac-alpha-Tocopherol/ml 1ml hexanerac-alpha-Tocopherol/ml 1ml hexane
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rac-alpha-Tocopherol/ml 1ml hexane

5,7,8-Trimethyltocol

Alpha-tocopherol is one of the eight forms of vitamin E and contains three methyl groups attached to the chromonal ring. Of all the forms of vitamin E, alpha-tocopherol is preferentially retained by the liver in animals and undergoes slower catabolism in cells. It has been found that alpha-tocopherol inhibits the activity of protein kinase C, an enzyme involved in cell proliferation and differentiation in smooth muscle cells, platelets, and monocytes. Other functions of alpha-tocopherol include gene regulation, up-regulation of mRNA or protein synthesis, and preventing the uptake of the harmful 7- hydroxycholesterol into cells.1 Although the antioxidant activity of alpha-tocopherol in vitro has long been established it appears that this may not be one of its primary functions in vivo.2 Vitamin E is involved in immune function, cell signaling, regulation of gene expression, and other metabolic processes. Vitamin E also inhibits lipid oxidation by donating its phenolic hydrogen to lipid free radicals.3 Antioxidant activity in vivo is normally alpha>beta>delta>gamma but the antioxidant potency may depend on various chemical and physical situations.4 The ortho-methyl substitution of the chroman head plays a vital role in the antioxidant activity of tocopherols while the phytyl tail is very important for proper positioning in the biomembranes. The antioxidant properties of vitamin E may delay memory loss in Down’s syndrome patients due to their protection from harmful oxidation caused by excess activity of superoxide dismutase. Vitamin E is only naturally produced in plants, algae, and some cyanobacteria and is therefore an important dietary nutrient for humans and animals.
Cat# Size Price Qty Buy
1072 50 mg/ml, 1ml £165.94

Additional Information

Property Value or Rating
Product Size 50 mg/ml, 1ml
Manufacturer Matreya, LLC
Empirical Formula C29H50O2
CAS# 10191-41-0
Formula Weight 431
Solvent hexane
Source synthetic
Purity TLC 95%;GC 98%, HPLC 98%
Analytical Methods TLC, GC, HPLC; identity confirmed by MS
Solubility methanol, ethanol, hexane, chloroform
Physical Appearance liquid
Storage -20°C
Dry Ice No
Hazardous Yes
References

1. R. Brigelius and M. Traber “Vitamin E: Funcion and Metabolism” The FASEB Journal, Vol. 13(10) pp. 1145-1155, 1999 
2. A. Azzi “Molecular mechanism of -tocopherol action” Free Radical Biology and Medicine, Vol. 43:1 pp. 16-21, 2007 
3. G. W. Burton and K. Ingold Autoxidation of biological molecules. 1. Antioxidant activity of vitamin E and related chain-breaking phenolic antioxidants in vitro, U. J. Am. Chem. Soc., 103, 6472-6477, 1981 
4. Anchalee Sirikhachornkit, Jai W. Shin, Irene Baroli, and Krishna K. Niyogi Replacement of  -tocopherol by  -tocopherol enhances resistance to photooxidative stress in a xanthophyll-deficient strain of Chlamydomonas reinhardtii, Eukaryotic Cell, doi:10.1128, 2009

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