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CAS 533-75-5

CAS 533-75-5 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 533-75-5
CAS 533-75-5PubChem CID 10789

Tropolone

Tropolone is a cyclic ketone that is cyclohepta-2,4,6-trien-1-one substituted by a hydroxy group at position 2. It is a toxin produced by the agricultural pathogen Burkholderia plantarii. It has a role as a fungicide, a toxin and a bacterial metabolite. It is an alpha-hydroxy ketone, an enol and a cyclic ketone. It derives from a hydride of a cyclohepta-1,3,5-triene. — ChEBI

IUPAC name
2-hydroxycyclohepta-2,4,6-trien-1-one
Molecular formula
C7H6O2
Molecular weight
122.12 g/mol
Exact mass
122.036779430 Da
XLogP3
0.5
Topological polar surface area
37.3 Ų
Hydrogen-bond donors
1
Hydrogen-bond acceptors
2
Covalent units
1
Defined stereocentres
0

Also known as

2-Hydroxycyclohepta-2,4,6-trienonePurpurocatechol2-Hydroxytropone2,4,6-Cycloheptatrien-1-one, 2-hydroxy-7L6DL16P1TNSC-89303CHEBI:79966RefChem:389350
16 more reported names
208-577-22-Hydroxy-2,4,6-cycloheptatrien-1-one2-Hydroxy-2,4,6-cycloheptatrienoneCCRIS 66092-Hydroxy-2,4,6-cycloheptatriene-1-oneAC1614Tropolone, purum, >=98.0% (GC)2-hydroxy-2,4,6-cycloheptatrien -1-onetropolonEINECS 208-577-2NSC 89303BRN 1904978UNII-7L6DL16P1TTropomyosins0TRTropolone, 98%
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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 533-75-5

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How CAS 533-75-5 is used on this site

CAS 533-75-5 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 533-75-5 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.