Sasaki M, Takahashi K. Complete Assignment of the
1H and
13C NMR Spectra of Carthamin Potassium Salt Isolated from
Carthamus tinctorius L.
Molecules 2021;
26:molecules26164953. [PMID:
34443545 PMCID:
PMC8400672 DOI:
10.3390/molecules26164953]
[Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 08/10/2021] [Accepted: 08/13/2021] [Indexed: 11/16/2022] Open
Abstract
Carthamin potassium salt isolated from Carthamus tinctorius L. was purified by an improved traditional Japanese method, without using column chromatography. The 1H and 13C nuclear magnetic resonance (NMR) signals of the pure product were fully assigned using one- and two-dimensional NMR spectroscopy, while the high purity of the potassium salt and deprotonation at the 3′ position of carthamin were confirmed by atomic adsorption spectroscopy and nano-electrospray ionization mass spectrometry.
Collapse