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Supelco

4-Aminoantipyrine

for spectrophotometric det. of H2O2 and phenols, ≥98.0%

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Synonym(s):
4-Amino-2,3-dimethyl-1-phenyl-3-pyrazolin-5-one, Ampyrone
Empirical Formula (Hill Notation):
C11H13N3O
CAS Number:
Molecular Weight:
203.24
Beilstein:
181635
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.21

Quality Level

Assay

≥98.0% (NT)
≥98.0%

quality

for spectrophotometric det. of H2O2 and phenols

technique(s)

UV/Vis spectroscopy: suitable
photometry: suitable

mp

105-110 °C (lit.)
108-110 °C

solubility

H2O: 0.1 g/mL, clear to slightly hazy

SMILES string

CN1N(c2ccccc2)C(=O)C(N)=C1C

InChI

1S/C11H13N3O/c1-8-10(12)11(15)14(13(8)2)9-6-4-3-5-7-9/h3-7H,12H2,1-2H3

InChI key

RLFWWDJHLFCNIJ-UHFFFAOYSA-N

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Other Notes

4-Aminoantipyrine has been used as a corrosion inhibitor of mild steel in 2 M HCl solution using different techniques: electrochemical impedance spectroscopy (EIS), potentiodynamic polarization and weight loss.
Reagent for the determination of H2O2

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Precautionary Statements

Hazard Classifications

Acute Tox. 4 Oral

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Y Saito et al.
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