C4582

β-Carotene

synthetic, ≥95% (HPLC), crystalline

• Synonim(y): β,β-Carotene, Provitamin A
• Wzór empiryczny (zapis Hilla): C₄₀H₅₆
• Numer CAS: 7235-40-7
• Masa cząsteczkowa: 536.87
• Beilstein: 1917416
• Numer WE: 230-636-6
• Numer MDL: MFCD00001556
• Kod UNSPSC: 12352212
• Identyfikator substancji w PubChem: 24892702
• NACRES: NA.77

Właściwości

• pochodzenie biologiczne: synthetic
• Poziom jakości: 200
• Próba: ≥95% (HPLC)
• Formularz: crystalline
• zanieczyszczenia: α-carotene, essentially free
• kolor: dark red-purple to red-brown
• mp: 178-179 °C
• rozpuszczalność: hexane: soluble 100 μg/mL; DMSO: 30 μg/mL; H₂O: insoluble
• ε (współczynnik ekstynkcji): 2160-2280 at 478-479 nm in hexane at 1% (vs. 2280, lit.); 2450-2590 at 450-452 nm in hexane at 1% (vs. 2590, lit.)
• temp. przechowywania: −20°C
• ciąg SMILES: CC1=C(/C=C/C(C)=C/C=C/C(C)=C/C=C/C=C(C)/C=C/C=C(C)/C=C/C2=C(C)CCCC2(C)C)C(C)(C)CCC1
• InChI: 1S/C40H56/c1-31(19-13-21-33(3)25-27-37-35(5)23-15-29-39(37,7)8)17-11-12-18-32(2)20-14-22-34(4)26-28-38-36(6)24-16-30-40(38,9)10/h11-14,17-22,25-28H,15-16,23-24,29-30H2,1-10H3/b12-11+,19-13+,20-14+,27-25+,28-26+,31-17+,32-18+,33-21+,34-22+
• Klucz InChI: OENHQHLEOONYIE-JLTXGRSLSA-N

Opis

Zastosowanie

β-Carotene has been used:

• as standard for quantification of b-carotene using HPLC analysis
• as a standard for the identification and quantification of authentic standards for carotenoid groups
• for standard curve preparation in the measurement of β-carotene production
• for standard curve preparation in nutritive assays

Działania biochem./fizjol.

β-Carotene (pro-vitamin A) is a member of carotenoids. This antioxidant plays a vital role in human physiology. β-Carotene is an abundant carotenoid. It is considered as a precursor of vitamin A, which is a lipid soluble antioxidant with vitamin E properties.

The most important of the provitamins A, β-carotene can be classified as an antioxidant due to its inhibition of radical initiated peroxidation in vitro. However, in vivo it appears to act either as an antioxidant or a prooxidant depending on cellular environment. It reduces the incidence of many cancers, but enhances lung cancer incidence in smokers.

The most important of the provitamins A.

Przestroga

Purchase minimum quantity required. Discard one month after opening.

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Informacja o środkach bezpieczeństwa

• Kod klasy składowania: 11 - Combustible Solids
• Klasa zagrożenia wodnego (WGK): WGK 1
• Temperatura zapłonu (°F): 217.9 °F - closed cup
• Temperatura zapłonu (°C): 103.3 °C - closed cup
• Środki ochrony indywidualnej: Eyeshields, Gloves