Sigma-Aldrich C4582 β-Carotene synthetic, ≥95% (HPLC), crystalline 5 mg
Marka
Stok Kodu
LB.SA.C4582-5MG
Kısa Bilgi
Synonym(s): β,β-Carotene, Provitamin A Empirical Formula (Hill Notation): C40H56 CAS Number: 7235-40-7 Molecular Weight: 536.87 Beilstein: 1917416 EC Number: 230-636-6 MDL number: MFCD00001556 PubChem Substance ID: 24892702 NACRES: NA.77
Garanti Süresi
24 Ay
| Sigma-Aldrich C4582 β-Carotene synthetic, ≥95% (HPLC), crystalline 5 mg |
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Synonym(s): β,β-Carotene, Provitamin A
Empirical Formula (Hill Notation): C40H56
CAS Number: 7235-40-7
Molecular Weight: 536.87
Beilstein: 1917416
EC Number: 230-636-6
MDL number: MFCD00001556
PubChem Substance ID: 24892702
NACRES: NA.77 |
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PROPERTIES
biological source synthetic
Quality Level 200
Assay ≥95% (HPLC)
form crystalline
impurities α-carotene, essentially free
color dark red-purple to red-brown
mp 178-179 °C
solubility
hexane: soluble 100 μg/mL
DMSO: 30 μg/mL
H2O: insoluble
ε (extinction coefficient)
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.)
storage temp. −20°C
SMILES string 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+
InChI key
OENHQHLEOONYIE-JLTXGRSLSA-N
DESCRIPTION
Application
β-Carotene has been used:
as standard for quantification of b-carotene using HPLC analysis[1]
as a standard for the identification and quantification of authentic standards for carotenoid groups[2]
for standard curve preparation in the measurement of β-carotene production[3]
for standard curve preparation in nutritive assays[4]
Biochem/physiol Actions
β-Carotene (pro-vitamin A) is a member of carotenoids. This antioxidant plays a vital role in human physiology.[5]
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.[5][6]
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.
Caution
Purchase minimum quantity required. Discard one month after opening. |
