Skip to main content
CosIng Checker
CosIng Checker
EU cosmetic ingredients, restrictions and safety
Login
CAS 0 records

CAS 305-01-1

CAS 305-01-1 matches 0 EU annex records across Annex II–VI of Regulation 1223/2009.

Check this CAS numberBrowse annexes

Chemical identity and properties

PubChem 2D chemical structure for CAS 305-01-1
CAS 305-01-1PubChem CID 5281416

Esculetin

Esculetin is a hydroxycoumarin that is umbelliferone in which the hydrogen at position 6 is substituted by a hydroxy group. It is used in filters for absorption of ultraviolet light. It has a role as an antioxidant, an ultraviolet filter and a plant metabolite. — ChEBI

IUPAC name
6,7-dihydroxychromen-2-one
Molecular formula
C9H6O4
Molecular weight
178.14 g/mol
Exact mass
178.02660867 Da
XLogP3
1.2
Topological polar surface area
66.8 Ų
Hydrogen-bond donors
2
Hydrogen-bond acceptors
4
Covalent units
1
Defined stereocentres
0

Also known as

6,7-DIHYDROXYCOUMARINAesculetin6,7-Dihydroxy-2H-chromen-2-oneCichorigeninCichoriin agluconEsculin agluconEsculin aglyconCichoriin aglycon
16 more reported names
6,7-Dihydroxy-2H-1-benzopyran-2-oneSM2XD6V944NSC-26428CHEBI:490095RefChem:137861206-161-5EsculetolEsculatin2H-1-Benzopyran-2-one, 6,7-dihydroxy-Asculetine6,7-Dihydroxy-2-benzopyroneC9H6O42,6-Dihydroxy-7H-chromen-7-oneCoumarin, 6,7-dihydroxy-NSC 264286,7-bis(oxidanyl)chromen-2-one
Open full PubChem recordPubChem annotations3D structure image
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 305-01-1

0 total
No records found for this CAS number.

How CAS 305-01-1 is used on this site

CAS 305-01-1 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 305-01-1 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.