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109428 Sigma-Aldrich

4-Hydroxyantipyrine

99%

Synonym: 4-Hydroxy-2,3-dimethyl-1-phenyl-3-pyrazolin-5-one, NSC 174055

  • CAS Number 1672-63-5

  • Empirical Formula (Hill Notation) C11H12N2O2

  • Molecular Weight 204.23

  •  MDL number MFCD00003143

  •  PubChem Substance ID 24846917

  •  NACRES NA.22

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Properties

Related Categories Building Blocks, C11, Chemical Synthesis, Heterocyclic Building Blocks, Pyrazoles More...
assay   99%
mp   184-186 °C (lit.)
SMILES string   CN1N(c2ccccc2)C(=O)C(O)=C1C
InChI   1S/C11H12N2O2/c1-8-10(14)11(15)13(12(8)2)9-6-4-3-5-7-9/h3-7,14H,1-2H3
InChI key   SKVPTPMWXJSBTF-UHFFFAOYSA-N

Description

General description

4-Hydroxyantipyrine is formed during oxidative deamination of aminopyrine. It is a metabolite of antipyrine.

Application

4-Hydroxyantipyrine was used to study the relationships between the metabolism of antipyrine, hexobarbitone and theophylline in man. It was used in a study on flow injection analysis system for the characterisation of pharmaceutical compounds via combination of diode array UV, 1H NMR, FT-IR spectroscopy and time-of-flight mass spectrometry.

Packaging

5 g in glass bottle

Safety & Documentation

Safety Information

Symbol 
GHS07  GHS07
Signal word 
Warning
Hazard statements 
Precautionary statements 
Target organs 
Respiratory system
Personal Protective Equipment 
RIDADR 
NONH for all modes of transport
WGK Germany 
WGK 3
Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable
Protocols & Articles
Peer-Reviewed Papers
15

References

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