reactive nitrogen species scavenger

4-Dimethylamino-2,3-dimethyl-1-phenyl-3-pyrazolin-5-one, Aminopyrine
Empirical Formula (Hill Notation):
CAS Number:
Molecular Weight:
EC Number:
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PubChem Substance ID:
Pricing and availability is not currently available.

Quality Level


107-109 °C (lit.)

SMILES string




InChI key


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Oxidation by Fe(VI) has potential to remove N-nitrosodiumethylamine precursors, including 4-dimethylaminoantipyrine, from drinking water. 4-Dimethylaminoantipyrine is itself an effective scavenger of reactive nitrogen compounds nitric oxide and peroxynitrite, important in the inflammatory response.


25, 100 g in glass bottle

Biochem/physiol Actions

Antipyrine was found to be nonmutagenic when screened against Salmonella typhimurium tester strains TA100, TA98, TA97, TA102 and TA104.


Skull and crossbonesSkull and crossbones

Signal Word


Target Organs

Respiratory system

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves

Hazard Codes


Risk Statement


Safety Statement



UN 2811 6.1 / PGIII

WGK Germany


Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Giacomo Russo et al.
European journal of pharmaceutics and biopharmaceutics : official journal of Arbeitsgemeinschaft fur Pharmazeutische Verfahrenstechnik e.V, 127, 72-84 (2018-02-11)
The Blood-Brain Barrier (BBB) plays an essential role in protecting the brain tissues against possible injurious substances. In the present work, 79 neutral, basic, acidic and amphoteric structurally unrelated analytes were considered and their chromatographic retention coefficients on immobilized artificial...
Alba Rocco et al.
Journal of hepatology, 56(4), 782-787 (2011-12-17)
Although numerous non-invasive tests are currently available to explore liver function and disease activity in patients with HCV-related chronic diseases, none of these indicate the likelihood of disease progression in the individual patient. We aimed at assessing the prognostic ability...
Syeda Sadia Fatima et al.
PloS one, 8(2), e57113-e57113 (2013-03-08)
Chemerin is a novel protein linked to adipocyte differentiation and the development of metabolic imbalances. We sought to examine the relationship of chemerin with metabolic syndrome disturbances including body fat percentage, serum lipid, glucose, insulin levels and body fat percentage...
Arthur G Roberts et al.
Biochemistry, 50(12), 2123-2134 (2011-03-08)
To understand the molecular basis of sequential N-dealkylation by cytochrome P450 2B enzymes, we studied the binding of amidopyrine (AP) as well as the metabolites of this reaction, desmethylamidopyrine (DMAP) and aminoantipyrine (AAP), using the X-ray crystal structure of rabbit...
Jayaraman Dessingou et al.
The Journal of organic chemistry, 77(3), 1406-1413 (2012-01-24)
The structurally characterized lower rim 1,3-di{4-antipyrine}amide conjugate of calix[4]arene (L) exhibits high selectivity toward Hg(2+) among other biologically important metal ions, viz., Na(+), K(+), Ca(2+), Mg(2+), Mn(2+), Fe(2+), Co(2+), Ni(2+), Cu(2+), Zn(2+), Cd(2+), Hg(2+), Pb(2+), and Ag(+) as studied by...

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