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Rubixanthin

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Rubixanthin[1]
Names
IUPAC name
(1R)-4-[(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-undecaenyl]-3,5,5-trimethylcyclohex-3-en-1-ol
Other names
•(3R)-beta,psi-Caroten-3-ol
•Natural yellow 27
•E161d
Identifiers
3D model (JSmol)
ECHA InfoCard 100.292.282 Edit this at Wikidata
E number E161d (colours)
  • CC1=C(C(C[C@@H](C1)O)(C)C)\C=C\C(=C\C=C\C(=C\C=C\C=C(/C)\C=C\C=C(/C)\C=C\C=C(/C)\CCC=C(C)C)\C)\C
Properties
C40H56O
Molar mass 552.85 g/mol
Appearance Red-orange crystals
Melting point 160 °C
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Rubixanthin, or natural yellow 27, is a natural xanthophyll pigment with a red-orange color found in rose hips. As a food additive it used under the E number E161d as a food coloring.

References

  1. ^ Merck Index, 11th Edition, 8265.