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CAS 103-38-8

CAS 103-38-8 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 103-38-8
CAS 103-38-8PubChem CID 7651

Benzyl isovalerate

Benzyl 3-methylbutanoate is a carboxylic ester. It is functionally related to a benzyl alcohol. — ChEBI

IUPAC name
benzyl 3-methylbutanoate
Molecular formula
C12H16O2
Molecular weight
192.25 g/mol
Exact mass
192.115029749 Da
XLogP3
3.3
Topological polar surface area
26.3 Ų
Hydrogen-bond donors
0
Hydrogen-bond acceptors
2
Covalent units
1
Defined stereocentres
0

Also known as

Butanoic acid, 3-methyl-, phenylmethyl esterBenzyl isopentanoateBenzyl isovalerianateBenzyl 3-methylbutyrateISOVALERIC ACID, BENZYL ESTERBenzyl 3-methyl butyratePhenylmethyl 3-methylbutanoateIsopropyl acetic acid, benzyl ester
16 more reported names
Isopentanoic acid, phenylmethyl esterNSC 46124FEMA No. 2152Phenylmethyl isovalerateButanoic acid, 3-methyl-, phenylethyl esterIsovaleric acid-benzyl ester87UKH01DMABRN 2503435BENZYL ISOVALERATE [FCC]Butanoic acid, phenylethyl esterNSC-46124benzylisovalerateBenzyl isovalerate (natural)EINECS 203-106-7UNII-87UKH01DMABenzyl isova
Open full PubChem recordPubChem annotations3D structure image
External database identifiers

Evidence from additional scientific databases

EMBL-EBI ChEBI
Exact identifier matchCHEBI:179904

Benzyl 3-methylbutanoate

Formula
C12H16O2
Average mass
192.258 g/mol
Monoisotopic mass
192.11503 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 3-methylbutanoate
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 match7651

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

  • Note: This chemical does not meet GHS hazard criteria for 99.5% (1603 of 1611) of all reports. Source: European Chemicals Agency (ECHA)
  • GHS Hazard Statements: Not Classified; Reported as not meeting GHS hazard criteria by 1603 of 1611 companies (only 0.5% 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 1611 reports by companies from 4 notifications to the ECHA C&L Inventory.; Reported as not meeting GHS hazard criteria per 1603 of 1611 reports by companies.; There are 3 notifications provided by 8 of 1611 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 103-38-8

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No records found for this CAS number.

How CAS 103-38-8 is used on this site

CAS 103-38-8 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 103-38-8 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.