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

CAS 950-81-2

CAS 950-81-2 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 950-81-2
CAS 950-81-2PubChem CID 70371

2,3-Dihydro-1,5-dimethyl-3-oxo-2-phenyl-1H-pyrazole-4-carbaldehyde

4-Formyl-antipyrine is a member of pyrazoles and a ring assembly. — ChEBI

IUPAC name
1,5-dimethyl-3-oxo-2-phenylpyrazole-4-carbaldehyde
Molecular formula
C12H12N2O2
Molecular weight
216.24 g/mol
Exact mass
216.089877630 Da
XLogP3
0.3
Topological polar surface area
40.6 Ų
Hydrogen-bond donors
0
Hydrogen-bond acceptors
3
Covalent units
1
Defined stereocentres
0

Also known as

4-Formylantipyrine4-Formyl-antipyrineEINECS 213-452-0NSC 60408RefChem:442191213-452-01,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazole-4-carbaldehyde4-Antipyrinecarboxaldehyde
16 more reported names
Antipyraldehyde1,5-Dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazole-4-carboxaldehyde4-Formyl Antipyrine1H-Pyrazole-4-carboxaldehyde, 2,3-dihydro-1,5-dimethyl-3-oxo-2-phenyl-NSC-604082,3-Dihydro-1,5-dimethyl-3-oxo-2-phenyl-1H-pyrazole-4-carboxaldehyde2,3-dimethyl-5-oxo-1-phenyl-3-pyrazoline-4-carbaldehyde4-Antipyrine carboxaldehydeY9E78M8HLW2,3-Dimethyl-5-oxo-1-phe4-Antipyrinecarboxaldehyde, 97%TPL0310CHEBI:177038HMS2590M05ALBB-021324PS-7929
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 950-81-2

0 total
No records found for this CAS number.

How CAS 950-81-2 is used on this site

CAS 950-81-2 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 950-81-2 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.