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生育酚(维生素E)  (+)-α-Tocopherol(VitaminE)

所属分类:维生素
商品编号:T3634
商品规格:5g分装
计量单位:
库存现状:50
参考价:¥180
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商品简介

详细说明

Sigma T3634    生育酚(维生素E) (+)-α-Tocopherol(VitaminE)

产品说明书:

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Synonym : 2,5,7,8-Tetramethyl-2-(4',8',12'-trimethyltridecyl)-6-chromanol 5,7,8-Trimethyltocol

Vitamin E

Molecular Formula : C 29 H 50 O 2

Molecular Weight 430.71

CAS Number 59-02-9

Descriptions

Caution …………………………Subject to air oxidation.

Other Notes ……………………Mixed isomers

Packaging ……………………Packaged under argon in a sealed ampule.

Quality …………………………Approx. 670 mg D-α-tocopherol per gram. The non-α content is 5-20 mg/g; remainder is soybean oil.

Properties

biological source ………………from vegetable oil

type………………………………Type V

color………………………………clear yellow to red

refractive index …………………n20/D 1.505(lit.)

bp …………………………………200-220 °C0.1 mm Hg(lit.)

density ……………………………0.95 g/mL at 25 °C(lit.)

storage temp. …………………….−20°C

TEST

SPECIFICATION

APPEARANCE

CLEAR YELLOW TO RED VISCOUS LIQUID

SOLUBILITY

CLEAR BRIGHT YELLOW TO YELLOW GREEN AT 400MG PLUS 4ML OF CHLOROFORM

IR SPECTRUM

CONSISTENT WITH STRUCTURE

CARBON

79.2 TO 82.5%

POTENCY

APPROX. 1000 I.U VITAMINE/G

RECOMMENDED RETEST

2 YEARS

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