“…4-Aminoantipyrine (4-AAP) is a metabolite of aminophenazone and barely administered as an analgesic, antipyretic, and nonsteroid anti-inflammatory drug because of its possible side effects. 4-AAP residues in the environment possess a potential threat to human health, such as the risk of agranulocytosis; its use as a drug is discouraged. , Moreover, 4-AAP is utilized as a reagent for biochemical reactions constructing peroxides or phenols. , It is also used in the calorimetric detection of phenolic compounds and pesticides in the aquatic environment. , Because schiff bases of 4-AAP and its metal complexes are extensively used in the pharmaceutical industry, biochemical research, catalysis, clinical applications, and environmental monitoring . The toxic effect of 4-AAP on experimental animals was reported by the Occupational Safety and Health Administration .…”