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CAS 0 records

CAS 104-20-1

CAS 104-20-1 matches 0 EU annex records across Annex II–VI of Regulation 1223/2009.

Chemical identity and properties

PubChem 2D chemical structure for CAS 104-20-1
CAS 104-20-1PubChem CID 61007

Anisylacetone

4-(4-Methoxyphenyl)-2-butanone is a member of methoxybenzenes. ChEBI

IUPAC name
4-(4-methoxyphenyl)butan-2-one
Molecular formula
C11H14O2
Molecular weight
178.23 g/mol
Exact mass
178.099379685 Da
XLogP3
2.1
Topological polar surface area
26.3 Ų
Hydrogen-bond donors
0
Hydrogen-bond acceptors
2
Covalent units
1
Defined stereocentres
0

Also known as

4-(4-Methoxyphenyl)-2-butanone2-BUTANONE, 4-(4-METHOXYPHENYL)-4-MethoxybenzylacetoneRaspberry ketone methyl ether4-(p-Methoxyphenyl)-2-butanone2-Butanone, 4-(p-methoxyphenyl)-Anisylacetone, p-Methyl oxanone
16 more reported names
p-Methoxybenzylacetonep-Methoxyphenylbutanone1-(4-Methoxyphenyl)-3-butanoneANISYL ACETONERasberry ketone methyl etherFEMA No. 2672Methoxybenzylacetone, p-ENT 20,2791-(p-Methoxyphenyl)-3-butanone-NSC 4053661-(p-Methoxyphenyl)-3-butanone4-(4-methoxyphenyl)-butan-2-oneUNII-GVG47S4S5VEINECS 203-184-2GVG47S4S5VBRN 1869592
External database identifiers

Evidence from additional scientific databases

EMBL-EBI ChEBI
Exact identifier matchCHEBI:169538

4-(4-Methoxyphenyl)-2-butanone

Formula
C11H14O2
Average mass
178.231 g/mol
Monoisotopic mass
178.09938 Da
Formal charge
0
  • methoxybenzenes — is a (CHEBI:51683)
  • methoxybenzenes — is a (CHEBI:51683)
Additional curated names
4-(4-methoxyphenyl)butan-2-one
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 match61007

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

  • Note: This chemical does not meet GHS hazard criteria for 99.7% (1567 of 1572) of all reports. Source: European Chemicals Agency (ECHA)
  • GHS Hazard Statements: Not Classified; Reported as not meeting GHS hazard criteria by 1567 of 1572 companies (only 0.3% 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 1572 reports by companies from 5 notifications to the ECHA C&L Inventory.; Reported as not meeting GHS hazard criteria per 1567 of 1572 reports by companies.; There are 3 notifications provided by 5 of 1572 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 104-20-1

0 total
No records found for this CAS number.

How CAS 104-20-1 is used on this site

CAS 104-20-1 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 104-20-1 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.