SEARCH Articles Figures Tables 13C-N.m.r. spectroscopy Carbon-13 n.m.r. spectroscopy N.m.r. spectroscopy Grignard reagents and N.m.r. spectroscopy carboxyl protonation and N.m.r. spectroscopy triphenylmethyl dimer Phosphorus-31 n.m.r. spectroscopy Sialidosis H-n.m.r. spectroscopy Spectroscopy MS