| Domain | Definition | ||
| Health | 1,3,6,7-Tetramethyl-4,5-dicarboxyethyl-2,8-divinylbilenone. Biosynthesized from hemoglobin as a precursor of bilirubin. Occurs in the bile of amphibians and of birds, but not in normal human bile or serum. (references) | ||
Source: compiled by the editor from various references; see credits. | Top | ||
