Capsorubin

Capsorubin is a natural red dye of the xanthophyll class. As a food coloring, it has the E number E160c(ii). Capsorubin is a carotenoid found in red bell pepper (Capsicum annuum) and a component of paprika oleoresin.

Capsorubin
Names
IUPAC name
(2E,4E,6E,8E,10E,12E,14E,16E,18E)-1,20-Bis[(1R,4S)-4-hydroxy-1,2,2-trimethylcyclopentyl]-4,8,13,17-tetramethylicosa-2,4,6,8,10,12,14,16,18-nonaene-1,20-dione
Other names
(3S,5R,3′S,5′R)-3,3'-Dihydroxy-κ,κ-carotene-6,6′-dione
Identifiers
3D model (JSmol)
ChEBI
ChemSpider
ECHA InfoCard 100.006.752
EC Number
  • 207-425-2
E number E160c(ii) (colours)
KEGG
UNII
Properties
C40H56O4
Molar mass 600.884 g·mol−1
Melting point 201 °C (394 °F; 474 K)[1]
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

References

  1. Zechmeister, L.; Annalen der Chemie, Justus Liebigs, 1935, S. 30–45
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