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CAS 78-84-2

CAS 78-84-2 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 78-84-2
CAS 78-84-2PubChem CID 6561

Isobutyraldehyde

Isobutyraldehyde is a member of the class of propanals that is propanal substituted by a methyl group at position 2. It has a role as a Saccharomyces cerevisiae metabolite. It is a member of propanals and a 2-methyl-branched fatty aldehyde. — ChEBI

IUPAC name
2-methylpropanal
Molecular formula
C4H8O
Molecular weight
72.11 g/mol
Exact mass
72.057514874 Da
XLogP3
0.8
Topological polar surface area
17.1 Ų
Hydrogen-bond donors
0
Hydrogen-bond acceptors
1
Covalent units
1
Defined stereocentres
0

Also known as

IsobutanalIsobutylaldehyde2-MethylpropionaldehydePropanal, 2-methyl-Isobutyric aldehydeMethylpropanalValine aldehyde2-Methyl-1-propanal
16 more reported names
IsopropylaldehydeIsopropylformaldehydeIsobutaldehydeIsobutyraldehydIsobutyralMethyl propanalIsobutyryl aldehydeIsopropyl aldehydealpha-MethylpropionaldehydeIsopropyl formaldehydeisobutyl aldehydePropionaldehyde, 2-methyl-ISO-BUTYRALDEHYDEFEMA No. 2220NCI-C60968NSC-6739
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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 78-84-2

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How CAS 78-84-2 is used on this site

CAS 78-84-2 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 78-84-2 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.