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

CAS 943-27-1

CAS 943-27-1 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 943-27-1
CAS 943-27-1PubChem CID 13669

p-tert-Butylacetophenone

IUPAC name
1-(4-tert-butylphenyl)ethanone
Molecular formula
C12H16O
Molecular weight
176.25 g/mol
Exact mass
176.120115130 Da
XLogP3
3.4
Topological polar surface area
17.1 Ų
Hydrogen-bond donors
0
Hydrogen-bond acceptors
1
Covalent units
1
Defined stereocentres
0

Also known as

4'-tert-Butylacetophenone4-tert-ButylacetophenoneAcetophenone, 4'-tert-butyl-Ethanone, 1-[4-(1,1-dimethylethyl)phenyl]-4-TERT-BUTYLPHENYL METHYL KETONEJAH8J5D78YNSC 826NSC-826
16 more reported names
p-tert-ButylacetylbenzeneEthanone, 1-(4-(1,1-dimethylethyl)phenyl)-EINECS 213-399-31-((1,1-Dimethylethyl)phenyl)ethanoneEthanone, 1-((1,1-dimethylethyl)phenyl)-Ethanone, 1-[(1,1-dimethylethyl)phenyl]-RefChem:858186Acetophenone, 4'-tert-butyl-(8CI)213-399-31-(4-(tert-Butyl)phenyl)ethanoneEbastine EP Impurity B1-(4-tert-butylphenyl)ethan-1-one1-(4-tert-butyl-phenyl)-ethanone4 inverted exclamation marka-tert-Butylacetophenone1-[4-(1,1-Dimethylethyl)phenyl]ethanone4'-(tert-Butyl)acetophenone
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 943-27-1

0 total
No records found for this CAS number.

How CAS 943-27-1 is used on this site

CAS 943-27-1 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 943-27-1 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.