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Visnagin

4-methoxy-7-methylfuro[3,2-g]chromen-5-one · also: Visnagine, Visnagidin, Desmethoxykhellin

FormulaC13H10O4
Mol. weight230.219
PubChem CID6716
InChIKeyNZVQLVGOZRELTG-UHFFFAOYSA-N
SMILESCC1=CC(=O)C2=C(O1)C=C3C(=C2OC)C=CO3
235Patents
86Research papers
8Patents - last 3 years
5Papers - last 3 years

Who owns the IP

The organizations most actively patenting around this compound, ranked by referenced patent volume.

#AssigneePatents
1Novelion Therapeutics Inc24
2Pharmacia and Upjohn Co23
3Bausch Health Companies Inc16
4BASF SE9
5Baxter International Inc7
6Novartis AG7
7Firmenich Inc6
8General Hospital Corp6
9United States Department of Health and Human Services6
10ADIR SARL5

Explore the full landscape

This preview shows the leading assignees. Cypris reveals the full ownership landscape - every filing entity, filing trends, and portfolio momentum.

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Where innovation is concentrated

Patent classifications ranked by volume reveal the technical domains with the most active filing.

#CodeAreaPatents
1A61KMedicinal preparations123
2A61PTherapeutic activity (drug indications)119
3C07DHeterocyclic compounds95
4A61N26
5C07KPeptides23
6A61F12
7A61QCosmetics, personal care12
8A23VFoods, foodstuffs - indexing scheme10
9C07FOrganometallic compounds10
10A23LFoods and beverages (general)9

AI mapped opportunity space

This preview shows where patent activity concentrates. Cypris maps the full classification landscape to surface technical whitespace and IP headroom.

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Most-cited patents

Patents ranked by forward citations reveal the foundational inventions the field continues to build on.

TitleYearAssigneeCited by
Method for extraction and separation of visnagin2012SHANXI JIAHE PLANT CHEMICAL CO., LTD.1
Method for extraction and separation of visnagin2015SHAANXI JIAHE PHYTOCHEM CO.,LTD.0
CHEMICAL STRUCTURE TRANSFORMATION OF VISNAGIN FOR PREVENTION OR TREATMENT OF DISEASES IN CENTRAL NERVOUS SYSTEM2011INDUSTRY ACADEMIC COOPERATION FOUNDATION, HALLYM UNIVERSITY0
Method for the preparation of visnagin from chellol and new compositions of matter1953GEISSMAN THEODORE A0

Where research is gaining momentum

Research themes ranked by publication activity show where scientific interest is accelerating around this compound.

#Research topicPapers
1Bioactive Compounds and Antitumor Agents1

Who's driving the science

The most-published authors working with this compound, alongside their primary affiliations.

#AuthorAffiliationPapers
1Lucia BovaliniUniversity of Siena5
2Veronika ButterweckUniversity of Florida5
3P. MartelliUniversity of Siena4
4Bruce S. EdwardsUniversity of New Mexico3
5J. B. HudsonUniversity of British Columbia3
6Keriman GünaydınMustafa Kemal University3
7Larry A. SklarUniversity of New Mexico3
8Matthew SaundersUniversity of New Mexico3
9Neslihan BeyazıtMustafa Kemal University3
10Pattaraporn VanachayangkulUniversity of Florida3

Research leaders

This preview lists the top authors. Cypris surfaces the full researcher landscape, their affiliations, and how scientific influence is shifting.

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The literature that defines it

The most-cited papers anchoring the scientific record for this compound.

Frequently asked questions

Common questions about this compound's patent and research landscape, answered from the underlying data.

What is the chemical composition of Visnagin?

Visnagin has the molecular formula C13H10O4 with a molecular weight of 230.219. Its canonical chemical name is 4-methoxy-7-methylfuro[3,2-g]chromen-5-one, and it is also known by the synonyms Visnagine, Visnagidin, and Desmethoxykhellin.

Which organizations hold the most patents related to Visnagin?

Novelion Therapeutics Inc holds the largest patent portfolio with 24 patents, followed by Pharmacia and Upjohn Co with 23 patents, and Bausch Health Companies Inc with 16 patents.

What are the primary research areas covered by Visnagin patents?

The most common patent classification for Visnagin is A61K (pharmaceutical preparations), appearing in 123 patents. The next most frequent classifications are A61P (pharmaceutical activity classification) with 119 patents and C07D (heterocyclic compounds) with 95 patents. These indicate a focus on pharmaceutical and chemical synthesis applications.

Which published studies on Visnagin have received the highest citation counts?

The most highly cited paper is 'Visnagin protects against doxorubicin-induced cardiomyopathy through modulation of mitochondrial malate dehydrogenase' from 2014 with 137 citations, followed by 'Prevention of renal crystal deposition by an extract of Ammi visnaga L. and its constituents khellin and visnagin in hyperoxaluric rats' from 2010 with 82 citations.

What has been the recent patent activity trend for Visnagin?

Patent filings for Visnagin have shown variability over recent years. In the last three years (2022–2024), there were 12 patents filed in total, with 2020 showing the highest activity in the recent trend with 9 patents. The paper publication rate has remained relatively steady, with 4 papers published in the last three years.

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