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CAS 646-13-9

CAS 646-13-9 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 646-13-9
CAS 646-13-9PubChem CID 12588

Isobutyl Stearate

isobutyl stearate has been reported in Aristolochia debilis, Aristolochia fontanesii, and other organisms with data available. — LOTUS - the natural products occurrence database

IUPAC name
2-methylpropyl octadecanoate
Molecular formula
C22H44O2
Molecular weight
340.6 g/mol
Exact mass
340.334130642 Da
XLogP3
9.9
Topological polar surface area
26.3 Ų
Hydrogen-bond donors
0
Hydrogen-bond acceptors
2
Covalent units
1
Defined stereocentres
0

Also known as

Octadecanoic acid, 2-methylpropyl esterStearic acid, isobutyl esterisobutyl octadecanoateHSDB 2177UNII-V8DPR6HNX3V8DPR6HNX3Stearic acid isobutyl esterUniflex IBYS
16 more reported names
Kessco IBSEINECS 211-466-1BRN 1792857Kemester 5415Emerest 2324Stearic acid, 2-methylpropyl esterEstol 1476Octadecanoic acid 2-methylpropyl esterISOBUTYL STEARATE [MI]ISOBUTYL STEARATE [HSDB]3-02-00-01017 (Beilstein Handbook Reference)ISOBUTYL stearic acidRefChem:1491032Methylpropyl octadecanoateISOBUTYL STEARATE [INCI]Stearic acid, 2methylpropyl ester
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 646-13-9

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How CAS 646-13-9 is used on this site

CAS 646-13-9 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 646-13-9 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.