Official EU label nameGlossary entry 18472

OSAJIN

This record confirms an official common ingredient name for EU cosmetic product labelling. It does not by itself confirm that the substance is permitted, unrestricted or safe.

Global evidence snapshot

The resolved identity has matching regulatory evidence in 0 of 13 indexed market datasets: 0 country records and 0 EU Annex records. Every result and evidence gap is listed below.

0 markets with evidence

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Markets with evidence

Evidence gaps

Resolved identifiers

Resolved substance identity

CAS:482-53-1

Ingredient index records:

OSAJIN

Cosmetic functions: ANTIOXIDANT

4H,8H-Benzo(1,2-b:3,4-b')dipyran-4-one, 5-hydroxy-3-(p-hydroxyphenyl)-8,8-dimethyl-6-(3-methyl-2-butenyl)-

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1 matched or reported name

OSAJIN

Regulatory evidence across markets

None of the 13 markets tracked here holds an imported rule under the name OSAJIN.

That is a statement about this inventory, not about the law: no imported rule is not evidence that a substance is permitted. A rule may exist under a different name, under a CAS or EC number this glossary entry does not carry, or in a dataset not yet imported.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 482-53-1

CAS 482-53-1PubChem CID 95168

Osajin

Osajin is a member of isoflavanones. — ChEBI

IUPAC name: 5-hydroxy-3-(4-hydroxyphenyl)-8,8-dimethyl-6-(3-methylbut-2-enyl)pyrano[2,3-h]chromen-4-one

Molecular formula: C25H24O5
Molecular weight: 404.5 g/mol
Exact mass: 404.16237386 Da
XLogP3: 5.9
Topological polar surface area: 76.0 Å²
Hydrogen-bond donors: 2
Hydrogen-bond acceptors: 5
Covalent units: 1
Defined stereocentres: 0

Also known as

3'-DEOXYPOMIFERIN5'-O-DEMETHYLSCANDINONE83R5N9X74BNSC-215654H,8H-Benzo(1,2-b:3,4-b')dipyran-4-one, 5-hydroxy-3-(p-hydroxyphenyl)-8,8-dimethyl-6-(3-methyl-2-butenyl)-5-hydroxy-3-(4-hydroxyphenyl)-8,8-dimethyl-6-(3-methylbut-2-enyl)pyrano(2,3-h)chromen-4-oneRefChem:168645Osaiin

16 more reported names

5-hydroxy-3-(4-hydroxyphenyl)-8,8-dimethyl-6-(3-methylbut-2-en-1-yl)-4H,8H-pyrano[2,3-f]chromen-4-oneUNII-83R5N9X74BNSC 21565Spectrum_000234SpecPlus_000197Spectrum2_000175Spectrum3_000225Spectrum4_001527Spectrum5_000034OSAJIN [MI]Oprea1_003228Oprea1_066678BSPBio_001869KBioGR_001934KBioSS_000714DivK1c_006293

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External database identifiers

ChEBI:CHEBI:7797
ChEMBL:CHEMBL238188
EPA DTXSID:DTXSID10964028
PubMed:22228954
PubMed:22087557
PubMed:21547262
PubMed:21532751
PubMed:21314138
PubMed:20706672
PubMed:19624015
PubMed:19394400
PubMed:18597965
PubMed:17969319
PubMed:17662606
PubMed:16936909

Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

Additional authoritative substance research

Each link searches that source for this identity. A link is a research route, not a claim that the source holds an exact record. What each source is, and its legal weight

Cosmetic Ingredient Review safety assessments FDA Global Substance Registration System ILO/WHO International Chemical Safety Cards Japan NITE-CHRIP NIOSH Pocket Guide to Chemical Hazards OECD eChemPortal US EPA CompTox CTX APIs

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Official source and scope

Imported from Commission Implementing Decision (EU) 2025/1175 (dataset version EU 2025/1175). The glossary supplies common ingredient names for the ingredient list required by Article 19(1)(g); it is not an approval or safety list.

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