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CAS 7559-81-1

CAS 7559-81-1 matches 0 EU annex records across Annex II–VI of Regulation 1223/2009.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 7559-81-1
CAS 7559-81-1PubChem CID 82051

Chlorokojic acid

IUPAC name
2-(chloromethyl)-5-hydroxypyran-4-one
Molecular formula
C6H5ClO3
Molecular weight
160.55 g/mol
Exact mass
159.9927217 Da
XLogP3
0.4
Topological polar surface area
46.5 Ų
Hydrogen-bond donors
1
Hydrogen-bond acceptors
3
Covalent units
1
Defined stereocentres
0

Also known as

2-(Chloromethyl)-5-hydroxy-4H-pyran-4-one4H-Pyran-4-one, 2-(chloromethyl)-5-hydroxy-NSC 10216NSC-10216CHLORO KOJIC ACIDNSC 298537NSC-298537AI3-02547
16 more reported names
2-CHLOROMETHYL-5-HYDROXY-4-PYRONE5-hydroxy-2-(chloromethyl)-4h-pyran-4-oneRefChem:575863CHLOROKOJIC ACID [INCI]815-637-7UB7QQW2D472-chloromethyl-5-hydroxy-pyran-4-one2-chloromethyl-5-hydroxy-4h-pyran-4-one(2-Chloromethyl)-5-hydroxy-4H-pyran-4-oneUNII-UB7QQW2D47chloro-kojic acidWSVIQCQIJLDTEK-UHFFFAOYSA-GLXC-03402EBC-6129832-(chloromethyl)-5-hydroxy-pyran-4-oneKSC-11-222-4
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External database identifiers

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

Records for CAS 7559-81-1

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How CAS 7559-81-1 is used on this site

CAS 7559-81-1 is the Chemical Abstracts Service identifier used to pin this page to a specific substance. In the current dataset, 0 EU annex records share this identifier, which helps you cross-check whether the same substance appears under one regulatory context or several.

Use this page when a supplier specification, SDS or raw-material dossier gives you CAS 7559-81-1 and you need to see every linked Annex II–VI record in one place. The entry cards above are the quickest route to concentration limits, warnings, annex placement and product-type conditions.