C4582

β-Carotene

synthetic, ≥95% (HPLC), crystalline

• Sinonimo/i: β,β-Carotene, Provitamin A
• Formula empirica (notazione di Hill): C₄₀H₅₆
• Numero CAS: 7235-40-7
• Peso molecolare: 536.87
• Beilstein: 1917416
• Numero CE: 230-636-6
• Numero MDL: MFCD00001556
• Codice UNSPSC: 12352212
• ID PubChem: 24892702
• NACRES: NA.77

Proprietà

• Origine biologica: synthetic
• Livello qualitativo: 200
• Saggio: ≥95% (HPLC)
• Stato: crystalline
• Impurezze: α-carotene, essentially free
• Colore: dark red-purple to red-brown
• Punto di fusione: 178-179 °C
• Solubilità: hexane: soluble 100 μg/mL; DMSO: 30 μg/mL; H₂O: insoluble
• ε (coefficiente d’estinzione): 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.)
• Temperatura di conservazione: −20°C
• Stringa SMILE: 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+; OENHQHLEOONYIE-JLTXGRSLSA-N

Descrizione

Applicazioni

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

Azioni biochim/fisiol

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.

Avvertenza

Purchase minimum quantity required. Discard one month after opening.

Informazioni sulla sicurezza

• Codice della classe di stoccaggio: 11 - Combustible Solids
• Classe di pericolosità dell'acqua (WGK): WGK 1
• Punto d’infiammabilità (°F): 217.9 °F - closed cup
• Punto d’infiammabilità (°C): 103.3 °C - closed cup
• Dispositivi di protezione individuale: Eyeshields, Gloves