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CAS 99-83-2

CAS 99-83-2 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 99-83-2
CAS 99-83-2PubChem CID 7460

alpha-PHELLANDRENE

Alpha-phellandrene is one of a pair of phellandrene cyclic monoterpene double-bond isomers in which both double bonds are endocyclic (cf. alpha-phellandrene, where one of them is exocyclic). It has a role as a volatile oil component, an antimicrobial agent and a plant metabolite. It is a cyclohexadiene and a phellandrene. — ChEBI

IUPAC name
2-methyl-5-propan-2-ylcyclohexa-1,3-diene
Molecular formula
C10H16
Molecular weight
136.23 g/mol
Exact mass
136.125200510 Da
XLogP3
3.2
Topological polar surface area
0.0 Ų
Hydrogen-bond donors
0
Hydrogen-bond acceptors
0
Covalent units
1
Defined stereocentres
0

Also known as

p-Mentha-1,5-dieneMenthadienealpha-FellandreneDihydro-p-cymenealpha Phellandrene5-Isopropyl-2-methyl-1,3-cyclohexadiene4-Isopropyl-1-methyl-1,5-cyclohexadienePhellandrene, alpha-
16 more reported names
1-Isopropyl-4-methyl-2,4-cyclohexadiene1-Methyl-4-isopropyl-1,5-cyclohexadiene2-Methyl-5-isopropyl-1,3-cyclohexadiene5-isopropyl-2-methylcyclohexa-1,3-diene2-methyl-5-(1-methylethyl)-1,3-cyclohexadieneFEMA No. 2856alpha-Phellandrene (natural)2-methyl-5-(propan-2-yl)cyclohexa-1,3-dieneHSDB 1130alpha-PhellandrenEINECS 202-792-5UNII-49JV13XE39BRN 1280394(-)-2-Methyl-5-(1-methylethyl)-1,3-cyclohexadiene49JV13XE39CHEBI:50035
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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 99-83-2

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How CAS 99-83-2 is used on this site

CAS 99-83-2 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 99-83-2 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.