Citranaxanthin is a carotenoid pigment used as a food additive under the E number E161i as a food coloring. There are natural sources of citranaxanthin, but it is generally prepared synthetically. It is used as an animal feed additive to impart a yellow color to chicken fat and egg yolks.

CAS：3604-90-8
中文别名：
英文别名：(3E,5E,7E,9E,11E,13E,15E,17E,19E)-5,9,14,18-tetramethyl-20-(2,6,6-trimethylcyclohexen-1-yl)icosa-3,5,7,9,11,13,15,17,19-nonaen-2-one;5-(chlorosulfonyl)-6-methyl-1,3-dihydropyrimidine-2,4-dione;6-Methyluracil-5-sulfonyl chloride;6-methyl-2,4-dioxo-1,2,3,4-tetrahydropyrimidinyl-5-sulfochloride;1,2,3,4-tetrahydro-6-methyl-2,4-dioxo-5-pyrimidinesulfonyl chloride;6-methyluracil-5-sulfochloride;6-methyl-2,4-dioxo-1,2,3,4-tetrahydropyrimidine-5-sulfonyl chloride;(E)-5,9,14,18-tetramethyl-20-(2,6,6-trimethylcyclohexenyl)-3,5,7,9,11,13,15,17,19-icosanonaen-2-one;6-Methyluracil-5-sulfonyl Chlorid;Mutatochrom;
分子式：C33H44O
分子量：456.702
精确质量：456.339
Psa：17.07
Logp：9.6682

UNII：4QIX1TA44L

密度：0.947g/cm3
沸点：612.8ºC at 760mmHg
闪点：283.7ºC
折射率：1.552

用途
食用橙、红色素。