Urocanic acid in keratinizing tissue.
D000818:Animals; D055598:Chemical Phenomena; D002621:Chemistry; D002845:Chromatography; D003460:Crystallization; D003873:Dermatitis, Exfoliative; D006168:Guinea Pigs; D006801:Humans; D007093:Imidazoles; D066298:In Vitro Techniques; D007633:Keratins; D012867:Skin; D013053:Spectrophotometry
D007093:Imidazoles; D007633:Keratins