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CAS 99-72-9

CAS 99-72-9 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 99-72-9
CAS 99-72-9PubChem CID 60990

2-(p-Tolyl)propanal

2-(4-Methylphenyl)propanal is a monoterpenoid. — ChEBI

IUPAC name
2-(4-methylphenyl)propanal
Molecular formula
C10H12O
Molecular weight
148.20 g/mol
Exact mass
148.088815002 Da
XLogP3
2.3
Topological polar surface area
17.1 Ų
Hydrogen-bond donors
0
Hydrogen-bond acceptors
1
Covalent units
1
Defined stereocentres
0

Also known as

alpha,4-Dimethylbenzeneacetaldehyde2-(p-Tolyl)propionaldehyde2-(p-Methylphenyl)propionaldehydeHydratropaldehyde, p-methyl-Benzeneacetaldehyde, alpha,4-dimethyl-BENZENEACETALDEHYDE, .ALPHA.,4-DIMETHYL-2-(4-TOLYL)PROPANAL2-(P-TOLYL)-PROPIONALDEHYDE [FHFI]
16 more reported names
2-(p-tolyl)-propionaldehydeRefChem:4617362-(p-Methylphenyl)propanala,4-Dimethylbenzeneacetaldehyde(+-)2-(P-TOLYL)PROPANAL2-(P-TOLYL)PROPANAL, (+-)-p-MethylhydratropaldehydeFEMA No. 3078FEMA3078QCM2X1V31N2-(4'-Methylphenyl)-propanal4-Methylhydratropaldehyde2-p-tolylpropionaldehyde2-(4-Methylphenyl)propionaldehydeHydratropaldehyde p-methyl-Methylhydratropic aldehyde, p-
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 99-72-9

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How CAS 99-72-9 is used on this site

CAS 99-72-9 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 99-72-9 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.