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Noun
1. urobilin
Wikipedia definition
2. UrobilinUrobilin is a yellow linear tetrapyrrole, resulting from the breakdown of heme, a cyclic tetrapyrrole. It is primarily responsible for the yellow color of urine. Urobilin is produced when Urobilinogen is oxidized, by intestinal bacteria or by exposure to the environment upon urination.
Read “Urobilin” on English Wikipedia
Read “ウロビリン” on Japanese Wikipedia
Read “Urobilin” on DBpedia

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