Communication
Version 1
Preserved in Portico This version is not peer-reviewed
Complete Assignment of the 1H and 13C NMR Spectra of Carthamin Potassium Salt Isolated from Carthamus Tinctorius L.
Version 1
: Received: 22 July 2021 / Approved: 9 August 2021 / Online: 9 August 2021 (12:49:31 CEST)
A peer-reviewed article of this Preprint also exists.
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, 4953. 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, 4953.
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.
Keywords
carthamin-3’potassium salt, green metallic luster, fermented safflower petal tablet
Subject
Chemistry and Materials Science, Analytical Chemistry
Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Comments (0)
We encourage comments and feedback from a broad range of readers. See criteria for comments and our Diversity statement.
Leave a public commentSend a private comment to the author(s)
* All users must log in before leaving a comment