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Gamma-Carotene

γ-Carotene
Skeletal formula of γ-carotene
Space-filling model of the γ-carotene molecule
Names
IUPAC name
β,ψ-Carotene
Systematic IUPAC name
2-((1E,3E,5E,7E,9E,11E,13E,15E,17E,19E)-3,7,12,16,20,24-hexamethylpentacosa-1,3,5,7,9,11,13,15,17,19,23-undecaen-1-yl)-1,3,3-trimethylcyclohex-1-ene
Other names
β,psi-Carotene
Identifiers
472-93-5
3D model (Jmol) Interactive image
ChEBI CHEBI:27740
ChemSpider 4444349
PubChem 5280791
Properties
C40H56
Molar mass 536.89 g·mol−1
Melting point 160 to 162 °C (320 to 324 °F; 433 to 435 K)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

γ-Carotene is a carotenoid, and is a biosynthetic intermediate for cyclized carotenoid synthesis in plants. It is formed from cyclization of lycopene by lycopene cyclase epsilon. Along with several other carotenoids, γ-Carotene is a vitamer of vitamin A in herbivores and omnivores. Carotenoids with a cyclized, beta-ionone ring can be converted to vitamin A, also known as retinol, by the enzyme Beta-carotene 15,15'-dioxygenase; however, the bioconversion of gamma-carotene to retinol has not been well-characterized.



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Wikipedia

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