# hypericin

> chemical compound

**Wikidata**: [Q425409](https://www.wikidata.org/wiki/Q425409)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Hypericin)  
**Source**: https://4ort.xyz/entity/hypericin


## References

1. hypericin. Global Substance Registration System
2. [CAS Common Chemistry](https://commonchemistry.cas.org/detail?cas_rn=548-04-9)
3. hypericin. PubChem
4. ChEBI release 2020-09-01
5. Medical Subject Headings
6. HYPERICIN. ChEMBL
7. Freebase Data Dumps. 2013
8. Hypericin. ChemSpider
9. hypericin. ChEBI
10. Pigments of Fungi, Part 8. Bianthraquinones from Dermocybe austroveneta
11. Characterisation of extracts of Hypericum perforatum L. using an on-line HPLC system with UV/visible and fluorescence detection prior to and after photochemical conversion of the effluent
12. Catalytic inhibition of human DNA topoisomerase IIalpha by hypericin, a naphthodianthrone from St. John's wort (Hypericum perforatum).
13. Analysis and stability of Hyperici oleum
14. Antidepressant Activity of Hypericum Perforatum and Hyperforin: the Neglected Possibility
15. Biochemical activities of extracts from Hypericum perforatum L. 5th communication: dopamine-beta-hydroxylase-product quantification by HPLC and inhibition by hypericins and flavonoids
16. Comparative chemical composition and variability of biological activity of methanolic extracts from Hypericum perforatum L.
17. Comparative evaluation of St. John's wort from different Italian regions
18. Comparison of German St. John's wort products according to hyperforin and total hypericin content.
19. Determination of hypericin and pseudohypericin in pharmaceutical preparations by liquid chromatography with fluorescence detection
20. Determination of Major Constituents in St. John's Wort Under Different Extraction Conditions
21. Determination of naphthodianthrones in plant extracts from Hypericum perforatum L. by liquid chromatography–electrospray mass spectrometry
22. Determination of St. John's Wort Components in Dietary Supplements and Functional Foods by Liquid Chromatography
23. Determining hyperforin and hypericin content in eight brands of St. John's wort.
24. Development of a simple, rapid and reproducible HPLC assay for the simultaneous determination of hypericins and stabilized hyperforin in commercial St. John's wort preparations
25. Differential effects of light and nitrogen on production of hypericins and leaf glands in Hypericum perforatum
26. Effect of acute drought stress and time of harvest on phytochemistry and dry weight of St. John's wort leaves and flowers
27. Effect of light on hypericins contents in fresh flowering top parts and in an extract of St. John's Wort (Hypericum perforatum).
28. Effects of a Methanolic Extract and a Hyperforin-Enriched CO2Extract of St. John's Wort (Hypericum perforatum) on Intracerebral Field Potentials in the Freely Moving Rat (Tele-Stereo-EEG)
29. Effects of Visible and Ultraviolet Light on the Production of Hypericins and Flavonoids in Cell Cultures ofHypericum perforatum
30. Evaluation of chemical stability of St. John's wort commercial extract and some preparations
31. Extracts of St. John's wort and various constituents affect beta-adrenergic binding in rat frontal cortex
32. Factors affecting growth of cell suspension cultures of hypericum perforatum L. (St. John's wort) and production of hypericin
33. Fast high-performance liquid chromatographic analysis of naphthodianthrones and phloroglucinols from Hypericum perforatum extracts
34. High performance liquid chromatographic analysis of St. John's wort with photodiode array detection.
35. High-performance liquid chromatographic determination of the biologically active principle hypericin in phytotherapeutic vegetable extracts and alcoholic beverages
36. High-Performance Liquid Chromatography On-Line Coupled to High-Field NMR and Mass Spectrometry for Structure Elucidation of Constituents ofHypericum perforatumL.
37. HPLC-DAD and TLC-Densitometry for quantification of hypericin inHypericum perforatum L. Extracts
38. Hyperforin, Possibly the Major Non-Nitrogenous Secondary Metabolite of Hypericum perforatum L
39. Hypericin and Pseudohypericin in Cell Cultures of VariousHypericumSpecies and Chemotypes
40. Hypericin and pseudohypericin in some Hypericum species
41. Hypericin content of Nova Scotia biotypes of Hypericum perforatum L.
42. Hypericin content variation in Hypericum perforatum in Australia
43. Hypericum perforatum--chemical profiling and quantitative results of St. John's Wort products by an improved high-performance liquid chromatography method
44. Hypericum perforatum L. - chemotype without rutin from Italy
45. Hypericum perforatum subspecies angustifolium shows a protective activity on the consequences of unavoidable stress exposure at lower doses than Hypericum perforatum perforatum.
46. Identification by high-performance liquid chromatography–diode array detection–mass spectrometry and quantification by high-performance liquid chromatography–UV absorbance detection of active constituents of Hypericum perforatum
47. Improved procedure for the quality control of Hypericum perforatum L.
48. Induction of hypericins in Hypericum perforatum in response to chromium
49. Influence of nitrogen on the production of hypericins by St. John’s wort
50. Initiation of Shoot Organ Cultures ofHypericum perforatumand Formation of Hypericin Derivatives