On the existence of a mono-vinyl d-urobilin.
D000143:Acids; D055598:Chemical Phenomena; D002621:Chemistry; D002857:Chromium; D004980:Ethane; D007700:Kinetics; D009682:Magnetic Resonance Spectroscopy; D010084:Oxidation-Reduction; D014557:Urobilin; D014753:Vinyl Compounds
D000143:Acids; D014753:Vinyl Compounds; D002857:Chromium; D014557:Urobilin; D004980:Ethane