title: Isocoproporphyrin: nuclear-magnetic-resonance-and mass-spectral methods for the determination of porphyrin structure.
abstract: The use of ;shift reagents' in the determination of n.m.r. spectra, and of reductive alkylation in combination with g.l.c.-mass spectrometry, facilitates assignment of the order of substituents in porphyrins, and the application of these new techniques to isocoproporphyrin is described.
mesh_terms: D000478:Alkylation; D000818:Animals; D002849:Chromatography, Gas; D003306:Coproporphyrins; D003903:Deuterium; D005063:Europium; D005243:Feces; D006801:Humans; D007659:Ketones; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D011166:Porphyrins; D051381:Rats
chemical_list: D003306:Coproporphyrins; D007659:Ketones; D011166:Porphyrins; C005524:isocoproporphyrin; D005063:Europium; D003903:Deuterium