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CAS 542-55-2

CAS 542-55-2 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 542-55-2
CAS 542-55-2PubChem CID 10957

Isobutyl formate

Isobutyl formate appears as a colorless liquid. Less dense than water. Vapors heavier than air. Vapors may be narcotic and irritating in high concentrations. Used as a solvent and to make perfumes. — CAMEO Chemicals

IUPAC name
2-methylpropyl formate
Molecular formula
C5H10O2
Molecular weight
102.13 g/mol
Exact mass
102.068079557 Da
XLogP3
1.5
Topological polar surface area
26.3 Ų
Hydrogen-bond donors
0
Hydrogen-bond acceptors
2
Covalent units
1
Defined stereocentres
0

Also known as

Formic acid, 2-methylpropyl esterTetryl formateIsobutyl formate (natural)FEMA No. 2197NSC 6968UNII-6OCL1KXH0Q6OCL1KXH0QEINECS 208-818-1
16 more reported names
UN2393BRN 1738888AI3-24240Isobutyl formate, 8CINSC-69682-Methylpropyl formate, 9CIISOBUTYL FORMATE [MI]ISOBUTYL FORMATE [FCC]ISOBUTYL FORMATE [FHFI]FEMA 21974-02-00-00029 (Beilstein Handbook Reference)UN 23932Methylpropyl formate2Methyl1propyl formateRefChem:1490832-Methylpropyl formic acid
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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 542-55-2

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How CAS 542-55-2 is used on this site

CAS 542-55-2 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 542-55-2 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.