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Synonyms:(3R,3´R)-beta,beta-Carotene-3,3´-diol;4-[18-(4-Hydroxy-2,6,6 trimethyl-1-cyclohexenyl)-3,7,12,16-tetramethyl-octadeca- 1,3,5,7,9,11,13,15,17-nonaenyl]-3,5,5-trimethyl-cyclohex-3-en-1-ol

Molecular Formula:C40H56O2

Molecular Weight:568.88

CAS Registry Number:144-68-3


β-Carotene is an organic compound - a terpenoid, a red-orange pigment abundant in plants and fruits. As a carotene with β-rings at both ends, it is the most common form of carotene. It is a precursor (inactive form) of vitamin A.Being highly conjugated, it is deeply colored, and as a hydrocarbon lacking functional groups, it is very lipophilic.

The structure was deduced by Karrer et al.[2] In nature, β-carotene is a precursor to vitamin A via the action of beta-carotene 15,15´-monooxygenase. β-Carotene is also the substance in carrots that colours them orange. β-Carotenoid is biosynthesized from geranylgeranyl pyrophosphate

Product name β-Carotene
Molar mass 536.87 g mol−1
Appearance red-purple solid
Density 0.941 ± 0.06 g/cm3
Melting point 180-182 °C
Solubility in water Insoluble in cold water or hot water. Soluble in diethyl ether, acetone, benzene, chloroform, carbon disulfide. Moderately soluble in petroleium ether, oils.Very slightly soluble in methanol.
Soluble in fat solvents



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