{"id":"https://openalex.org/keywords/hypericin","display_name":"hypericin","description":"Hypericin is a naturally occurring red pigment and bioactive chemical compound found in some plants, studied in pharmacology and photochemistry.","display_name_alternatives":["hypericum red"],"ids":{"openalex":"https://openalex.org/keywords/hypericin","wikidata":"https://www.wikidata.org/wiki/Q425409"},"primary_topic":{"id":"https://openalex.org/T12087","display_name":"Natural Compound Pharmacology Studies","score":0.2975,"subfield":{"id":"https://openalex.org/subfields/1110","display_name":"Plant Science"},"field":{"id":"https://openalex.org/fields/11","display_name":"Agricultural and Biological Sciences"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},"topics":[{"id":"https://openalex.org/T12087","display_name":"Natural Compound Pharmacology Studies","score":0.2975,"subfield":{"id":"https://openalex.org/subfields/1110","display_name":"Plant Science"},"field":{"id":"https://openalex.org/fields/11","display_name":"Agricultural and Biological Sciences"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},{"id":"https://openalex.org/T10957","display_name":"Photodynamic Therapy Research Studies","score":0.2698,"subfield":{"id":"https://openalex.org/subfields/2740","display_name":"Pulmonary and Respiratory Medicine"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}}],"works_count":3725,"cited_by_count":81015,"works_api_url":"https://api.openalex.org/works?filter=keywords.id:keywords/hypericin","updated_date":"2026-10-22T04:07:25","created_date":"2022-04-12T19:38:12"}