Skip to main content
CAS 0 records

CAS 103-28-6

CAS 103-28-6 matches 0 EU annex records across Annex II–VI of Regulation 1223/2009.

Chemical identity and properties

PubChem 2D chemical structure for CAS 103-28-6
CAS 103-28-6PubChem CID 7646

Benzyl isobutyrate

Phenylmethyl 2-methylpropanoate is a carboxylic ester. It is functionally related to a benzyl alcohol. ChEBI

IUPAC name
benzyl 2-methylpropanoate
Molecular formula
C11H14O2
Molecular weight
178.23 g/mol
Exact mass
178.099379685 Da
XLogP3
3.0
Topological polar surface area
26.3 Ų
Hydrogen-bond donors
0
Hydrogen-bond acceptors
2
Covalent units
1
Defined stereocentres
0

Also known as

Phenylmethyl 2-methylpropanoateBenzyl isobutanoatePropanoic acid, 2-methyl-, phenylmethyl esterISOBUTYRIC ACID, BENZYL ESTERBenzyl 2-methylpropionateBenzyl 2-methyl propionateBenzylester kyseliny isomaselneFEMA No. 2141
16 more reported names
P98PE45V9MNSC-46112NSC-406201WLN: 1Y1 & VO1RBenzyl isobutyrate (natural)EINECS 203-095-9NSC 406201Benzylester kyseliny isomaselne [Czech]BRN 1869299UNII-P98PE45V9MIsobutyric Acid Benzyl EsterAI3-02944Benzyl iso-butyrateIsobutyric acid-benzyl esterBenzyl 2-methylpropanoate #BENZYL ISOBUTYRATE [FCC]
External database identifiers

Evidence from additional scientific databases

EMBL-EBI ChEBI
Exact identifier matchCHEBI:173823

Phenylmethyl 2-methylpropanoate

Formula
C11H14O2
Average mass
178.231 g/mol
Monoisotopic mass
178.09938 Da
Formal charge
0
  • carboxylic ester — is a (CHEBI:33308)
  • benzyl alcohol — has functional parent (CHEBI:17987)
  • carboxylic ester — is a (CHEBI:33308)
Additional curated names
benzyl 2-methylpropanoate
Cross-references from this source

Mapped by: Exact CAS cross-reference in the ChEBI compound record. Retrieved: 2026-08-31. Open source record

NIH PubChem PUG-View
Exact identifier match7646

Attributed physical-property, hazard, environmental and use annotations.

  • Note: This chemical does not meet GHS hazard criteria for 96% (1604 of 1670) of all reports. Source: European Chemicals Agency (ECHA)
  • GHS Hazard Statements: Not Classified; Reported as not meeting GHS hazard criteria by 1604 of 1670 companies (only 4% companies provided GHS information). For more detailed information, please visit ECHA C&L website. Source: European Chemicals Agency (ECHA)
  • ECHA C&L Notifications Summary: Aggregated GHS information provided per 1670 reports by companies from 3 notifications to the ECHA C&L Inventory.; Reported as not meeting GHS hazard criteria per 1604 of 1670 reports by companies.; There are 2 notifications provided by 66 of 1670 reports by companies with hazard statement code(s).; Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown. For more detailed information, please visit ECHA C&L website. Source: European Chemicals Agency (ECHA)

Mapped by: Existing checksum-valid CAS to unique PubChem CID match. Retrieved: 2026-08-31. Open source record

Scientific classifications and hazard annotations provide context and do not replace the market-specific regulatory decision shown above.

Additional source coverage and match status
SourceResultChecked
EMBL-EBI ChEBIExact match2026-08-31
NIH PubChem PUG-ViewExact match2026-08-31

A recorded no-match is useful evidence that the source was checked; it is not a claim that the substance does not exist elsewhere.

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 103-28-6

0 total
No records found for this CAS number.

How CAS 103-28-6 is used on this site

CAS 103-28-6 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 103-28-6 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.