title: 1H NMR spectroscopic characterization of solutions of Sepia melanin, Sepia melanin free acid and human hair melanin.
abstract: A 1H nuclear magnetic resonance study of Sepia melanin, Sepia melanin free acid (Sepia MFA) and human hair melanin was carried out in deuterium oxide solution at pH 10-11. The empirical formula of Sepia MFA was calculated and used to estimate the number of protons in the aromatic region of the Sepia MFA polymeric chain and to suggest a possible monomeric unit profile.
authors.affiliation: Center for Heterocyclic Compounds, Department of Chemistry, University of Florida, Gainesville, USA. katritzky@chem.ufl.edu
authors.forename: Alan R
authors.initials: AR
authors.lastname: Katritzky
authors.forename: Novruz G
authors.initials: NG
authors.lastname: Akhmedov
authors.forename: Sergey N
authors.initials: SN
authors.lastname: Denisenko
authors.forename: Olga V
authors.initials: OV
authors.lastname: Denisko
mesh_terms: D000818:Animals; D017666:Deuterium Oxide / Q000737:chemistry; D006197:Hair / Q000737:chemistry*; D006801:Humans; D006861:Hydrogen Peroxide / Q000737:chemistry; D009682:Magnetic Resonance Spectroscopy; D008543:Melanins / Q000737:chemistry*; D008974:Mollusca / Q000737:chemistry*; D011522:Protons; D012996:Solutions
chemical_list: D008543:Melanins; D011522:Protons; D012996:Solutions; D006861:Hydrogen Peroxide; D017666:Deuterium Oxide