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Merck

C4582

β-Carotene

synthetic, ≥95% (HPLC), Vitamin A precursor, crystalline

Synonym(s):

β,β-Carotene, Provitamin A

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About This Item

Empirical Formula (Hill Notation):
C40H56
CAS Number:
7235-40-7
Molecular Weight:
536.87
NACRES:
NA.77
PubChem Substance ID:
24892702
UNSPSC Code:
12352212
EC Number:
230-636-6
MDL number:
MFCD00001556
Beilstein/REAXYS Number:
1917416

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Product Name

β-Carotene, synthetic, ≥95% (HPLC), crystalline

InChI key

OENHQHLEOONYIE-JLTXGRSLSA-N

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+

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

biological source

synthetic

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

Quality Level

200

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Application

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

Biochem/physiol Actions

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.

Disclaimer

Purchase minimum quantity required. Discard one month after opening.

Storage Class

11 - Combustible Solids

wgk

WGK 1

flash_point_f

217.9 °F - closed cup

flash_point_c

103.3 °C - closed cup

ppe

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Certificates of Analysis (COA)

Lot/Batch Number
SLCL3244
SLCD9581
SLBX4055
SLBQ7074V
SLBL2715V

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Antioxidant Vitamins and Minerals
Antioxidants in Food, Vitamins and Supplements (2014)
The nutrient content of five traditional South African dark green leafy vegetables?A preliminary study
Schonfeldt HC and Pretorius B
J. Food Compos. Anal., 24(8), 1141-1146 (2011)
Medical Countermeasures?Chelation Therapy
Handbook of Arsenic Toxicology, 589-626 (2015)
Ying Liu et al.
Scientific reports, 6, 24117-24117 (2016-04-08)
Protein rational design has become more and more popular for protein engineering with the advantage of biological big-data. In this study, we described a method of rational design that is able to identify desired mutants by analyzing the coevolution of
Extraction of pungent spice paprika by supercritical carbon dioxide and subcritical propane
Daood H G, et al.
Journal of Supercritical Fluids, 23(2), 143-152 (2002)
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