What is "rubixanthin"

n. (context organic compound English) A monocyclic xanthophyll pigment found in rose hips and elsewhere.

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; it is not approved for use in the USA or EU but is approved in Australia and New Zealand where it is listed as 161d.