Chemistry:δ-Carotene

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δ-Carotene
Skeletal formula
Space-filling model
Names
IUPAC name
ε,ψ-Carotene
Systematic IUPAC name
(6R)-6-[(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]-1,5,5-trimethylcyclohex-1-ene
Identifiers
3D model (JSmol)
ChemSpider
UNII
Properties
C40H56
Molar mass 536.873
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references
Tracking categories (test):

δ-Carotene (delta-carotene) or ε,ψ-carotene is a form of carotene with an ε-ring at one end, and the other uncyclized, labelled ψ (psi). It is an intermediate synthesis product in some photosynthetic plants between lycopene and α-carotene (β,ε-carotene) or ε-carotene (ε,ε-carotene).[1] δ-Carotene is fat soluble. Delta-carotene contains an alpha-ionone instead of a beta-ionone ring;[2] this conversion is carried out by the gene Del which shifts the position of the double bond in the ring structure. The formation delta-carotene under the presence of the Del gene is sensitive to high temperatures.[3]

References