Merck
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C4582

Sigma-Aldrich

β-Carotene

synthetic, ≥95% (HPLC), crystalline

Synonym(s):
β,β-Carotene, Provitamin A
Empirical Formula (Hill Notation):
C40H56
CAS Number:
Molecular Weight:
536.87
Beilstein:
1917416
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.77

biological source

synthetic

Quality Level

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

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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

Packaging

5, 10, 25 mg in ampule

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.

Caution

Purchase minimum quantity required. Discard one month after opening.

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

217.9 °F - closed cup

Flash Point(C)

103.3 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

Enter Lot Number to search for Certificate of Analysis (COA).

Certificate of Origin

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