protohypericin, 548-03-8

Articles:

Google Patents:	Methods for preparing hypericin
PubMed:	PAL inhibitor evokes different responses in two Hypericum species.
PubMed:	Anti-influenza virus principles from Muehlenbeckia hastulata.
PubMed:	LC-MS and LC-PDA analysis of Hypericum empetrifolium and Hypericum sinaicum.
PubMed:	Light-independent metabolomics of endophytic Thielavia subthermophila provides insight into microbial hypericin biosynthesis.
PubMed:	Determination of enantiomerization barriers of hypericin and pseudohypericin by dynamic high-performance liquid chromatography on immobilized polysaccharide-type chiral stationary phases and off-column racemization experiments.
PubMed:	Study of active naphtodianthrone St John's Wort compounds by electrospray ionization Fourier transform ion cyclotron resonance and multi-stage mass spectrometry in sustained off-resonance irradiation collision-induced dissociation and infrared multiphoton dissociation modes.
PubMed:	Influence of the habitat altitude on the (proto)hypericin and (proto)pseudohypericin levels of hypericum plants from Crete.
PubMed:	Influence of the developmental stage on the (proto)-hypericin and (proto)pseudohypericin levels of Hypericum plants from Crete.
PubMed:	Simultaneous determination of total hypericin and hyperforin in St. John's wort extracts by HPLC with electrochemical detection.
PubMed:	Identification of the major constituents of Hypericum perforatum by LC/SPE/NMR and/or LC/MS.
PubMed:	A high-performance liquid chromatography with electrochemical detection for the determination of total hypericin in extracts of St. John's Wort.
PubMed:	Simultaneous determination of protopseudohypericin, pseudohypericin, protohypericin, and hypericin without light exposure.
PubMed:	Synthesis, in vitro cellular uptake and photo-induced antiproliferative effects of lipophilic hypericin acid derivatives.
PubMed:	Liquid chromatography-mass spectrometry studies of St. John's wort methanol extraction: active constituents and their transformation.
PubMed:	Determination of hypericin content in Hypericum triquetrifolium Turra (Hypericaceae) growing wild in Jordan.
PubMed:	Fast high-performance liquid chromatographic analysis of naphthodianthrones and phloroglucinols from Hypericum perforatum extracts.
PubMed:	Use of an on-line, precolumn photochemical reactor in high-performance liquid chromatography of naphthodianthrones in Hypericum perforatum preparations.
PubMed:	Determination of naphthodianthrones and phloroglucinols from Hypericum perforatum extracts by liquid chromatography/tandem mass spectrometry.
PubMed:	Improved procedure for the quality control of Hypericum perforatum L.
PubMed:	Separation of hypericins and hyperforins in extracts of Hypericum perforatum L. using non-aqueous capillary electrophoresis with reversed electro-osmotic flow.
PubMed:	Effect of light on hypericins contents in fresh flowering top parts and in an extract of St. John's Wort (Hypericum perforatum).
PubMed:	[Biologically active substances isolated from Hypericum attenuatum Choisy].
PubMed:	Evidence that total extract of Hypericum perforatum affects exploratory behavior and exerts anxiolytic effects in rats.
PubMed:	Photocytotoxicity of protohypericin after photoconversion to hypericin.
PubMed:	In vitro transport and uptake of protohypericin and hypericin in the Caco-2 model.
PubMed:	Determination of naphthodianthrones in plant extracts from Hypericum perforatum L. by liquid chromatography-electrospray mass spectrometry.
PubMed:	Evaluation of the antiviral activity of anthraquinones, anthrones and anthraquinone derivatives against human cytomegalovirus.