Vitamin E 1959-2-9
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Post Date:
Apr 24,2013
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Expiry Date:
Apr 24,2014
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Detailed Description:
Cas No. :1959-2-9
Quantity: 1Kilograms
Payment Method: T/T , Western Union
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"Product Name: Vitamin E
CAS: 59-02-9
EINECS NO.: 200-412-2
MF: C29H50O2
Purity:99%
Standard:USP/BP/EP
Packing: Aluminum foil bag/wooden drum
Usage:vitaminE is used to refer to a group of fatsoluble compounds that include both tocopherols and tocotrienols.There are many different forms of vitamin E, of which γ-tocopherol is the most common in the North American diet. γ-Tocopherol can be found in corn oil, soybean oil, margarine and dressings.α-Tocopherol, the most biologically active form of vitamin E, is the second most common form of vitamin E in the North American diet. This variant of vitamin E can be found most abundantly in wheat germ oil, sunflower, and safflower oils. It is a fatsoluble antioxidant that stops the production of reactive oxygen species formed when fat undergoes oxidation.
ITEM SPECIFICATIONS RESULTS
Appearance Slightly yellow, clear, viscous oil Qualified
Assay by G.C 98.0—102.0% 98.8%
Identity Corresponds Qualified
Infrared spectrum Meets EP requirement Qualified
Option rotation -0.01°~ +0.01° Qualified
Density(20°C) 0.952—0.966g/ml 0.955g/ml
Refractive index(20°C) 1.494—1.498 1.496
Related substances Impurities A, C: for each impurity ≤ 0.5%
Impurity B ≤ 1.5%
Sum of impurity D+E ≤ 1.0%
Any other impurities: Meet EP requirements
Total impurities: ≤ 2.5% Qualified
Absorbance in ethanol:
At about 284nm (max)
At about 254nm (min)
42.0—45.0
7.5—9.0
44.0
8.8
Acidity Max.1.0ml of 0.1 N NaOH 0.04 ml
Sulphated ashes ≤0.1% 0.03%
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CAS Registry Number:
1959-2-9
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