Aminopyrine

Aminophenazone

Clinical data
AHFS/Drugs.com	International Drug Names
ATC code	N02BB03 (WHO)
Pharmacokinetic data
Metabolism	N-demethylation
Identifiers
IUPAC name 4-Dimethylamino-1,5-dimethyl-2-phenylpyrazol-3-one
CAS Number	58-15-1 Y
PubChem CID	6009
DrugBank	DB01424 Y
ChemSpider	5787 Y
UNII	01704YP3MO
KEGG	D00556 Y
ChEBI	CHEBI:160246 Y
ChEMBL	CHEMBL288470 Y
ECHA InfoCard	100.000.332
Chemical and physical data
Formula	C13H17N3O
Molar mass	231.29358
3D model (Jmol)	Interactive image
SMILES O=C2\C(=C(/N(N2c1ccccc1)C)C)N(C)C
InChI InChI=1S/C13H17N3O/c1-10-12(14(2)3)13(17)16(15(10)4)11-8-6-5-7-9-11/h5-9H,1-4H3 Y Key:RMMXTBMQSGEXHJ-UHFFFAOYSA-N Y

Aminophenazone (or aminopyrine) is a pyrazolone with analgesic, anti-inflammatory, and antipyretic properties but has risk of agranulocytosis. A breath test with ¹³C-labeled aminopyrine has been used as a non-invasive measure of P-450 metabolic activity in liver function tests. It is also used in measuring the total body water in the human body system.