Bixin is a methyl ester of a dibasic fatty acid. On treating with alkali, it is hydrolyzed to form water soluble norbixin. It is obtained in pure form from annatto seeds. Bixin is a carotenoid and estimated as yolk and skin pigmenter.
Synonyms: 6-Methyl hydrogen (9Z)-6,6'-diapocarotene-6,6'-dioate; 9-cis-6,6'-Diapo-psi,psi-carotenedioic acid 6-methyl ester; Natural orange 4
Molecular Formula: C25H30O4
Molecular Weight: 394.5
Linear Structural Formula: C25H30O4
Purity: >=90.0% (HPLC)
Storage: -20C