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Hydroxy-guanidin

2-hydroxyguanidine · also: Hydroxyguanidine, Hydroxyguanidine sulfate

FormulaCH5N3O
Mol. weight75.071
PubChem CID80668
InChIKeyWFBHRSAKANVBKH-UHFFFAOYSA-N
SMILESC(=NO)(N)N
2,855Patents
74Research papers
144Patents - last 3 years
1Papers - last 3 years

Who owns the IP

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

#AssigneePatents
1L'Oréal SA294
2Cyclerion Therapeutics Inc65
3Nissan Chemical Corp57
4Bayer AG54
5Ironwood Pharmaceuticals Inc53
6Nicox SA52
7Chugai Pharmaceutical Co Ltd51
8Redx Pharma Ltd43
9Bristol Myers Squibb Co36
10BASF SE32

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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 preparations1,684
2A61PTherapeutic activity (drug indications)1,577
3C07DHeterocyclic compounds1,230
4A61QCosmetics, personal care573
5C07CAcyclic and carbocyclic compounds354
6Y02AClimate change adaptation238
7C07KPeptides168
8C07FOrganometallic compounds145
9A45D106
10A01NPreservation of bodies; biocides; pest repellents102

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
Treatment of sexual dysfunction with N-hydroxyguanidine compounds2001NITROMED, INC.48
Substd hydroxyguanidines prepn1972FAHLBERG LIST VEB26
Hydroxyamidine and hydroxyguanidine compounds as urokinase inhibitors2009Heidelberg Pharma AG23
N-HYDROXYGUANIDINES AS MODULATORS OF INDOLEAMINE 2,3-DIOXYGENASE2007Incyte Corp23
Use of hydroxyguanidines2003WAPHARM AB11

Where research is gaining momentum

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

#Research topicPapers
1Amino Acid Enzymes and Metabolism1

Who's driving the science

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

#AuthorAffiliationPapers
1Daniel MansuyLaboratoire de Chimie et Biochimie Pharmacologiques et Toxicologiques13
2Jean‐Luc BoucherUniversité Paris Cité12
3Bernd ClementKiel University6
4Dennis J. StuehrUniversité Paris Cité5
5David Lefèvre‐GroboillotUniversité Paris Cité4
6Jarl E. S. WikbergUppsala University4
7Jon M. FukutoOklahoma State University Center for Health Sciences4
8Maija DambrovaUppsala University4
9Bernard MüllerLaboratoire de Chimie Physique3
10Dennis SchadePharmaceutical Biotechnology (Czechia)3

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 molecular formula and weight of 2-hydroxyguanidine?

2-hydroxyguanidine has the molecular formula CH5N3O and a molecular weight of 75.071 g/mol.

Which organizations hold the most patents for hydroxyguanidine compounds?

LOreal SA leads with 294 patents, followed by Cyclerion Therapeutics Inc with 65 patents, Nissan Chemical Corp with 57 patents, Bayer AG with 54 patents, and Ironwood Pharmaceuticals Inc with 53 patents.

What are the primary therapeutic applications indicated in hydroxyguanidine patents?

Patents describe applications including treatment of sexual dysfunction, modulation of indoleamine 2,3-dioxygenase, inhibition of urokinase, and arginase-related physiological effects. Key patent examples include treatment of sexual dysfunction with N-hydroxyguanidine compounds and N-hydroxyguanidines as modulators of indoleamine 2,3-dioxygenase.

What is the trend in patent filings for hydroxyguanidine over the last decade?

Patent filings peaked at 143 in 2016, followed by generally declining activity: 111 in 2017, 119 in 2018, 107 in 2019, 115 in 2020, 114 in 2021, 100 in 2022, 83 in 2023, and 71 in 2024. In the last 3 years (2022–2024), 148 patents were filed in total.

Who are the leading academic researchers publishing on hydroxyguanidine mechanisms?

Daniel Mansuy from Laboratoire de Chimie et Biochimie Pharmacologiques et Toxicologiques has published 13 papers on the compound, and Jean‐Luc Boucher from Université Paris Cité has published 12 papers. Notable research includes work on binding modes to neuronal nitric oxide synthase and microsomal cytochrome P450-dependent oxidation mechanisms.

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