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CAS 499-44-5

CAS 499-44-5 matches 0 EU annex records across Annex II–VI of Regulation 1223/2009.

Chemical identity and properties

PubChem 2D chemical structure for CAS 499-44-5
CAS 499-44-5PubChem CID 3611

Hinokitiol

Beta-thujaplicin is a monoterpenoid that is cyclohepta-2,4,6-trien-1-one substituted by a hydroxy group at position 2 and an isopropyl group at position 4. Isolated from Thuja plicata and Chamaecyparis obtusa, it exhibits antimicrobial activities. It has a role as an antibacterial agent, an antineoplastic agent, an antifungal agent, an antiplasmodial drug and a plant metabolite. It is a monoterpenoid, an enol and a cyclic ketone. It derives from a hydride of a cyclohepta-1,3,5-triene. ChEBI

IUPAC name
2-hydroxy-6-propan-2-ylcyclohepta-2,4,6-trien-1-one
Molecular formula
C10H12O2
Molecular weight
164.20 g/mol
Exact mass
164.083729621 Da
XLogP3
2.1
Topological polar surface area
37.3 Ų
Hydrogen-bond donors
1
Hydrogen-bond acceptors
2
Covalent units
1
Defined stereocentres
0

Also known as

beta-Thujaplicin4-Isopropyltropolone2,4,6-Cycloheptatrien-1-one, 2-hydroxy-4-(1-methylethyl)-2-Hydroxy-4-(1-methylethyl)-2,4,6-cycloheptatrien-1-one2-hydroxy-4-(propan-2-yl)cyclohepta-2,4,6-trien-1-oneU5335D6EBINSC-18804CHEBI:10447
16 more reported names
RefChem:5679832-hydroxy-4-isopropyl-2,4,6-cycloheptatriene-1-onehydron;7-oxo-5-propan-2-ylcyclohepta-1,3,5-trien-1-olate207-880-7Hinokitolbeta-ThujaplicineIsopropyltropolone.beta.-ThujaplicinTHUJAPLICIN, BETATropolone, 4-isopropyl-beta-Isopropyltropolon2-Hydroxy-4-isopropyl-2,4,6-cycloheptatrien-1-one2-Hydroxy-4-isopropylcyclohepta-2,4,6-trien-1-onebeta-Isopropyltropolone.beta.-IsopropyltropolonNSC 18804
External database identifiers

Retrieved from NIH PubChem on 2026-09-02 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

Records for CAS 499-44-5

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No records found for this CAS number.

How CAS 499-44-5 is used on this site

CAS 499-44-5 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 499-44-5 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.