Bilirubin

Bilirubin is a product that comes from the breakdown of haemoglobin. Its levels are higher in certain diseases and it causes the yellow color of bruises and the brown color of faeces. Its level usually measured to monitor liver or gallbladder problems.

300px|thumb|Bilirrubin: observe the N-rings

Category:Physiology
Category:Tetrapyrroles
Category:Carboxylic acids
Category:Imides