B-Carotene Synthetic >= 95% (HPLC) Crystalline - 5 Mg - Sigma
Código: 17235
β-Carotene
synthetic, ≥95% (HPLC), crystalline
Sinônimo(s):
β,β-Carotene, Provitamin A
Empirical Formula (Hill Notation):
C40H56
Número CAS:
Peso molecular:
536.87
Beilstein/REAXYS Number:
1917416
Número EC:
Número MDL:
ID de substância PubChem:
NACRES:
NA.77
Propriedades
Nível de qualidade
200
fonte biológica
synthetic
teor
≥95% (HPLC)
forma
crystalline
Impurezas
α-carotene, essentially free
cor
dark red-purple to red-brown
pf
178-179 °C
solubilidade
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.)
temperatura de armazenamento
−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
Descrição:
Aplicação
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
Embalagem
5, 10, 25 mg in ampule
Ações bioquímicas/fisiológicas
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.
Atenção
Purchase minimum quantity required. Discard one month after opening.