Book a demo

Chemical intelligence powered by cypris.ai

Primuletin

5-hydroxy-2-phenylchromen-4-one

FormulaC15H10O3
Mol. weight238.242
PubChem CID68112
InChIKeyIYBLVRRCNVHZQJ-UHFFFAOYSA-N
SMILESC1=CC=C(C=C1)C2=CC(=O)C3=C(C=CC=C3O2)O
1,947Patents
66Research papers
153Patents - 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
1Mitsubishi Chemical Corp599
2Mitsui Chemicals Inc331
3Nippon Steel Chemical and Materials Co Ltd73
4University of California San Diego UCSD69
5Pepsico Inc56
6Pioneer Corp44
7Adeka Corp26
8Harvard University25
9Toyota Industries Corp24
10University of California Berkeley20

Explore the full landscape

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

Visit Cypris

Where innovation is concentrated

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

#CodeAreaPatents
1H10KOrganic semiconductors / OLEDs683
2C09KMaterials for misc. applications415
3A61KMedicinal preparations379
4A61PTherapeutic activity (drug indications)332
5H05B313
6C07DHeterocyclic compounds291
7C08GPolymers from non-vinyl bonds (e.g. polyamides, polyesters)214
8A23LFoods and beverages (general)178
9Y10SCross-reference (legacy)129
10C07FOrganometallic compounds124

AI mapped opportunity space

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

See Cypris in action

Who's driving the science

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

#AuthorAffiliationPapers
1Artur M. S. SilvaUniversity of Aveiro4
2Eduarda FernandesUniversidade do Porto4
3Bruce S. EdwardsUniversity of New Mexico3
4Daniela RibeiroUniversidade do Porto3
5Larry A. SklarUniversity of New Mexico3
6Marisa FreitasUniversidade do Porto3
7Matthew SaundersUniversity of New Mexico3
8Steven W. GravesLos Alamos National Laboratory3
9Akifumi HosodaMeijo University2
10Anton SimeonovNational Center for Advancing Translational Sciences2

Research leaders

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

See Cypris in action

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 structure of Primuletin?

Primuletin has the canonical name 5-hydroxy-2-phenylchromen-4-one with molecular formula C15H10O3 and molecular weight 238.242. Its InChI Key is IYBLVRRCNVHZQJ-UHFFFAOYSA-N.

How much patent and research literature coverage exists for Primuletin?

Primuletin is covered by 1947 total patents and 66 peer-reviewed papers. In the last three years, there have been 156 new patents and 1 new paper, indicating sustained but modest research activity.

Which organizations have the most patents related to Primuletin?

The leading patent assignees are Mitsubishi Chemical Corp with 599 patents, Mitsui Chemicals Inc with 331 patents, and Nippon Steel Chemical and Materials Co Ltd with 73 patents. Academic institutions including University of California San Diego UCSD and Harvard University also hold patents in this space.

What research topics have been studied in papers mentioning Primuletin?

Published research covers flavonoid chemistry and biological activity, including studies on flavonoids and nitric oxide synthase, mutagenicity assessment, metabolism and pharmacokinetics, fluorescence behavior, and biological effects on human leukemia cells. Research has also addressed antioxidant activities and natural product bioactivities.

What patent technology areas are most associated with Primuletin-related work?

The dominant CPC subclasses are H10K (organic light-emitting devices) with 683 patents, C09K (dyes, paints, polishes) with 415 patents, and A61K (pharmaceutical preparations) with 379 patents. These reflect applications in optoelectronics and pharmaceuticals.

Turn any compound into a complete chemical intelligence landscape

Go beyond static compound data. Cypris resolves identities, patents, papers, and commercial signals into one AI-powered view - so your team can move from a single chemical question to a complete R&D, IP, and market landscape.

Schedule a free trial