title: Retinaldehyde-protein pigments.
mesh_terms: D000818:Animals; D001001:Anura; D055598:Chemical Phenomena; D002621:Chemistry; D007313:Insecta; D051381:Rats; D012168:Retinal Pigments; D012172:Retinaldehyde; D014801:Vitamin A / Q000031:analogs & derivatives
chemical_list: D012168:Retinal Pigments; D014801:Vitamin A; D012172:Retinaldehyde