Pular para o conteúdo
Merck
Todas as fotos(1)

Documentos Principais

T3634

Sigma-Aldrich

(+)-α-Tocopherol

from vegetable oil, Type V, ~1000 IU/g

Sinônimo(s):

2,5,7,8-Tetramethyl-2-(4′,8′,12′-trimethyltridecyl)-6-chromanol, 5,7,8-Trimethyltocol, D-α-Tocopherol, Vitamin E

Faça loginpara ver os preços organizacionais e de contrato


About This Item

Fórmula empírica (Notação de Hill):
C29H50O2
Número CAS:
Peso molecular:
430.71
Beilstein:
4712525
Número CE:
Número MDL:
Código UNSPSC:
12352205
eCl@ss:
34058016
ID de substância PubChem:
NACRES:
NA.79

fonte biológica

vegetable oil

Nível de qualidade

tipo

Type V

Formulário

viscous liquid

atividade específica

~1000 IU/g

cor

clear yellow to red

índice de refração

n20/D 1.505 (lit.)

p.e.

200-220 °C/0.1 mmHg (lit.)

densidade

0.95 g/mL at 25 °C (lit.)

temperatura de armazenamento

−20°C

cadeia de caracteres SMILES

CC(C)CCC[C@@H](C)CCC[C@@H](C)CCC[C@]1(C)CCc2c(C)c(O)c(C)c(C)c2O1

InChI

1S/C29H50O2/c1-20(2)12-9-13-21(3)14-10-15-22(4)16-11-18-29(8)19-17-26-25(7)27(30)23(5)24(6)28(26)31-29/h20-22,30H,9-19H2,1-8H3/t21-,22-,29-/m1/s1

chave InChI

GVJHHUAWPYXKBD-IEOSBIPESA-N

Procurando produtos similares? Visita Guia de comparação de produtos

Descrição geral

α-Tocopherol is synthesized from γ-tocopherol by the action of enzyme γ-tocopherol methyltransferase. It is the major form of Vitamin E in human plasma. It is present in sunflower seed oil.

Aplicação

(+)-α-Tocopherol has been used:
  • as a food supplement for juvenile cobia fish
  • to evaluate its protective effect on bisphenol A induced oxidative stress in rats
  • to test its chemopreventive efficacy in estrogen-mediated mammary cancer rats

Ações bioquímicas/fisiológicas

α-Tocopherol is essential for the photosynthesis in Synechocystis sp. strain PCC 6803. Supplementation with α-Tocopherol decreases lipid peroxidation and platelet aggregation. It inhibits protein kinase C and may play key role in gene regulation.
Tocopherols (TCP) (vitamin E) are a series (α, β, γ and δ) of chiral organic molecules that vary in their degree of methylation of the phenol moiety of the chromanol ring. Tocopherols are lipid soluble anti-oxidants that protect cell membranes from oxidative damage. α-Tocopherol is the form of tocopherol preferentially absorbed by homo sapiens. Various isofroms and analogues of tocopherol have opposing and differentiated regulatory activities in vivo.

Embalagem

Packaged under argon in a sealed ampule.

Outras notas

Mixed constitutional (α, β, γ, δ) isomers.

Qualidade

Approx. 670 mg D-α-tocopherol per gram. The non-α content is typically between 5-35 mg/g

Atenção

Subject to air oxidation.

propriedades físicas

This product is miscible with chloroform or ethanol. It is practically insoluble in water but it is miscible with ether, acetone, and vegetable oils. It is unstable to alkaline conditions.

Código de classe de armazenamento

10 - Combustible liquids

Classe de risco de água (WGK)

WGK 1

Ponto de fulgor (°F)

230.0 °F - closed cup

Ponto de fulgor (°C)

110 °C - closed cup

Equipamento de proteção individual

Eyeshields, Gloves, multi-purpose combination respirator cartridge (US)


Escolha uma das versões mais recentes:

Certificados de análise (COA)

Lot/Batch Number

Não está vendo a versão correta?

Se precisar de uma versão específica, você pode procurar um certificado específico pelo número do lote ou da remessa.

Já possui este produto?

Encontre a documentação dos produtos que você adquiriu recentemente na biblioteca de documentos.

Visite a Biblioteca de Documentos

Os clientes também visualizaram

Slide 1 of 9

1 of 9

Taro Sakamoto et al.
Journal of clinical biochemistry and nutrition, 66(2), 116-123 (2020-04-02)
Glutathione peroxidase 4 (GPx4) is a unique antioxidant enzyme that directly reduces the phospholipid hydroperoxides (PLOOH) generated in biomembranes using glutathione as the reductant. We have previously reported that the Caenorhabditis elegans gpx-quad mutant, which lacks all homologous genes of
Influence of alpha-tocopherol and alpha-lipoic acid on bisphenol-A-induced oxidative damage in liver and ovarian tissue of rats
Avci B, et al.
Toxicology and Industrial Health, 32(8), 1381-1390 (2016)
Differential gene regulation and tumor-inhibitory activities of alpha-, delta-, and gamma-tocopherols in estrogen-mediated mammary carcinogenesis
Gupta S, et al.
Cancer Prevention Research (Philadelphia, Pa.), 10(12), 694-703 (2017)
Blood alpha-tocopherol, gamma-tocopherol levels and risk of prostate cancer: a meta-analysis of prospective studies
Cui R, et al.
Testing, 9(3), e93044-e93044 (2014)
The role of alpha-tocopherol in preventing disease: from epidemiology to molecular events
Azzi A, et al.
Molecular Aspects of Medicine, 24(6), 325-336 (2003)

Artigos

Antioxidants protect biological systems from oxidative damage produced by oxygen-containing free radicals and from redoxactive transition metal ions such as iron, copper, and cadmium.

Nossa equipe de cientistas tem experiência em todas as áreas de pesquisa, incluindo Life Sciences, ciência de materiais, síntese química, cromatografia, química analítica e muitas outras.

Entre em contato com a assistência técnica