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4-Aminoantipyrine

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

Synonym(s):

4-Amino-2,3-dimethyl-1-phenyl-3-pyrazolin-5-one, Ampyrone

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About This Item

Empirical Formula (Hill Notation):
C11H13N3O
CAS Number:
Molecular Weight:
203.24
Beilstein:
181635
EC Number:
MDL number:
UNSPSC Code:
41116105
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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Application


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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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4-Aminoantipyrine as an inhibitor of mild steel corrosion in HCl solution
El-Rehim, SS Abd, Magdy AM Ibrahim, and K. F. Khaled
J. Appl. Electrochem., 29 (5), 593-599 (1999)
Michael Crone et al.
Wellcome open research, 6, 268-268 (2021-11-20)
Background: Diagnostic laboratories are currently required to provide routine testing of asymptomatic staff and patients as a part of their clinical screening for SARS-CoV-2 infection. However, these cohorts display very different disease prevalence from symptomatic individuals and testing capacity for
Y Saito et al.
Talanta, 34(7), 667-669 (1987-07-01)
Amberlite IRA 900 anion-exchange resin modified with manganese-tetrakis(sulphophenyl)-porphine has been used as a catalyst instead of peroxidase for the determination of hydrogen peroxide by the reaction 2H(2)O(2) + N,N-diethylaniline + 4-aminoantipyrine (catalyst)--> quinonoid dye (lambda(max) 550 nm) + 4H(2)O. The
Alireza Radmanesh et al.
Radiology, 297(1), E223-E227 (2020-05-22)
Diffuse leukoencephalopathy and juxtacortical and/or callosal microhemorrhages were brain imaging features in critically ill patients with coronavirus disease 2019. Coronavirus disease 2019 (COVID-19) has been reported in association with a variety of brain imaging findings such as ischemic infarct, hemorrhage
Biphasic Variation Over Time in Presenting Features of Patients With COVID-19.
Nazreen Jamal et al.
Pediatrics, 146(5) (2020-09-05)

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