Empirical Formula (Hill Notation): C40H56
CAS Number: 7235-40-7
Molecular Weight: 536.87
Beilstein: 1917416
EC Number: 230-636-6
MDL number: MFCD00001556
UNSPSC Code: 12352212
PubChem Substance ID:
24892702
NACRES: NA.77
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
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.
The most important of the provitamins A.
Caution
Purchase minimum quantity required. Discard one month after
opening.
