Skip to main content
CosIng Checker
CosIng Checker
EU cosmetic ingredients, restrictions and safety
Login
CAS 0 records

CAS 88-09-5

CAS 88-09-5 matches 0 EU annex records across Annex II–VI of Regulation 1223/2009.

Check this CAS numberBrowse annexes

Chemical identity and properties

PubChem 2D chemical structure for CAS 88-09-5
CAS 88-09-5PubChem CID 6915

2-Ethylbutyric acid

2-Ethylbutanoic acid is a branched-chain fatty acid. — ChEBI

IUPAC name
2-ethylbutanoic acid
Molecular formula
C6H12O2
Molecular weight
116.16 g/mol
Exact mass
116.083729621 Da
XLogP3
1.7
Topological polar surface area
37.3 Ų
Hydrogen-bond donors
1
Hydrogen-bond acceptors
2
Covalent units
1
Defined stereocentres
0

Also known as

Diethylacetic acidButanoic acid, 2-ethyl-3-Pentanecarboxylic acidAcetic acid, diethyl-2-Ethyl butanoic acidButyric acid, 2-ethyl-alpha-Ethylbutyric acidalpha-Ethylbuytyric acid
16 more reported names
Kyselina diethyloctovaFEMA No. 2429.alpha.-Ethylbutyric acidNSC 11765Kyselina diethyloctova [Czech]EINECS 201-796-4IDY8B990KEBRN 1098634AI3-04629NSC-11765DIETHYLACETIC ACID [MI]2-ETHYLBUTYRIC ACID [FCC]2-ETHYLBUTYRIC ACID [FHFI]4-02-00-00950 (Beilstein Handbook Reference)2Ethylbutanoic acid2Ethyl butanoic acid
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 88-09-5

0 total
No records found for this CAS number.

How CAS 88-09-5 is used on this site

CAS 88-09-5 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 88-09-5 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.