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T3251

Sigma-Aldrich

(±)-α-Tocoferol

synthetic, ≥96% (HPLC)

Sinónimos:

DL-todo-rac-α-Tocoferol, Vitamina E

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5 G
$16.02
25 G
$40.68
100 G
$128.00
500 G
$399.00

$16.02

Precio de catálogo$17.80Ahorre 10 %
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5 G
$16.02
25 G
$40.68
100 G
$128.00
500 G
$399.00

About This Item

Fórmula empírica (notación de Hill):
C29H50O2
Número de CAS:
10191-41-0
Peso molecular:
430.71
Beilstein:
94012
Número CE:
233-466-0
Número MDL:
MFCD00006848
Código UNSPSC:
12352205
eCl@ss:
34058016
ID de la sustancia en PubChem:
24900118
NACRES:
NA.77

$16.02

Precio de catálogo$17.80Ahorre 10 %
Web-Only Promotion

Disponible para envío el11 de abril de 2025Detalles

Solicitar un pedido a granel

origen biológico

synthetic

Ensayo

≥96% (HPLC)

Formulario

liquid

técnicas

HPLC: suitable

color

faint brown to brown
 yellow to very dark yellow

solubilidad

H2O: insoluble
acetone: miscible
chloroform: miscible
ethanol: miscible
vegetable oils: miscible

densidad

0.950 g/mL at 20 °C (lit.)

temp. de almacenamiento

2-8°C

cadena SMILES

CC(C)CCCC(C)CCCC(C)CCCC1(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

Clave InChI

GVJHHUAWPYXKBD-UHFFFAOYSA-N

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Aplicación

(±)-α-Tocopherol has been used for preparing mycobacterial emulsions. It has also been used to study its immunomodulatory effect on influenza virus.

Acciones bioquímicas o fisiológicas

Tocopherols (vitamin E) comprise of a series (α, β, γ and δ) of chiral compounds that differ by the methylation degree of the phenol moiety of the chromanol ring. They function as lipid soluble antioxidants and protect cell membranes from oxidative damage. α-tocopherols are favorably absorbed by humans and their nicotinate salts can function as vitamin E supplements. Studies have also reported that vitamin E can prevent cell damage caused by pharmacologically induced epilepsy in rats.

Nota de preparación

(±)-α-Tocopherol is miscible with chloroform, ethanol, ether, acetone, and vegetable oils. However, it is practically insoluble in water. (±)-α-Tocopherol is unstable under alkaline conditions.

Pictogramas

Exclamation mark
GHS07

Palabra de señalización

Warning

Frases de peligro

H317

Clasificaciones de peligro

Skin Sens. 1

Código de clase de almacenamiento

10 - Combustible liquids

Clase de riesgo para el agua (WGK)

WGK 1

Equipo de protección personal

Eyeshields, Gloves

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Certificados de análisis (COA)

Lot/Batch Number
0000415404
0000415404
MKCX1479
0000370394
0000342827

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M Tagami et al.
Laboratory investigation; a journal of technical methods and pathology, 78(11), 1415-1429 (1998-12-05)
Cerebral ischemia followed by oxygen reperfusion induces apoptosis in hippocampal neurons in stroke-prone spontaneously hypertensive rats (SHRSP) but not in Wistar Kyoto rats (WKY). The overproduction of oxygen-free radicals that occurs in the tissues of SHRSP is implicated in reoxygenation
Thomas H Sanderson et al.
Molecular and cellular neurosciences, 64, 116-122 (2015-01-13)
Cellular mechanisms involved in multiple neurodegenerative diseases converge on mitochondria to induce overproduction of reactive oxygen species, damage to mitochondria, and subsequent cytochrome c release. Little is currently known regarding the contribution mitochondrial dynamics play in cytochrome c release following
Farhan Basit et al.
Cell death & disease, 8(3), e2716-e2716 (2017-03-31)
Inhibition of complex I (CI) of the mitochondrial respiratory chain by BAY 87-2243 ('BAY') triggers death of BRAFV600E melanoma cell lines and inhibits in vivo tumor growth. Here we studied the mechanism by which this inhibition induces melanoma cell death.
Ida Johansson et al.
Autophagy, 11(9), 1636-1651 (2015-08-04)
Accumulation and aggregation of misfolded proteins is a hallmark of several diseases collectively known as proteinopathies. Autophagy has a cytoprotective role in diseases associated with protein aggregates. Age-related macular degeneration (AMD) is the most common neurodegenerative eye disease that evokes
Deon B Williams et al.
American journal of physiology. Regulatory, integrative and comparative physiology, 302(1), R49-R58 (2011-10-28)
Glucocorticoid excess induces marked insulin resistance and glucose intolerance. A recent study has shown that antioxidants prevent dexamethasone (DEX)-induced insulin resistance in cultured adipocytes. The purpose of this investigation was to examine the effects of dietary vitamin E and C
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Questions

1–5 of 5 Questions  

  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

      Helpful?

  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

      Helpful?

  3. What is the concentration of item T3251 (W/V)?

    1 answer

    1. The material is a neat or pure liquid, undiluted with a solvent. At a purity of 100%, the molarity is 2.205 M. The minimum purity specification for this product is 96%. The molarity will vary from lot to lot based on the determined purity. For a lot of this product with a minimum purity of 96%, the molarity will be 2.117 M.

      Helpful?

  4. Hi. Could you please provide the concentration of this product (w/v)? Thanks!

    1 answer

    1. This material is a neat or pure liquid that has not been diluted with a solvent. At a purity of 100%, the molarity is 2.205 M. The minimum purity specification for this product is 96%. The molarity will change from lot to lot based on the determined purity. A lot of this product with a minimum purity of 96% will be 2.117 M. Please see the link below to review a sample or lot specific Certificate of Analysis:
      https://www.sigmaaldrich.com/product/sigma/t3251#product-documentation

      Helpful?

  5. Hi, I would like to ask if you have the LC-MS grade of this chemical (Tocopherol CAS number; 10191-41-0, part no: T3251-5G). I'm in need of the LC-MS authentic standard of this chemical to compare my isolated compound with. Thank you.

    1 answer

    1. This product is not considered a standard nor has it been tested for use as such in LC-MS. Product number V-020 is a 1 mg/mL α-tocopherol solution in methanol. This product is a certified reference material suitable for use as a standard in HPLC or LC-MS/MS.

      Please see the link below to review this product option:
      https://www.sigmaaldrich.com/product/cerillian/v020

      Helpful?

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