Substituted 4-Acyl-5-methyl-2-phenyl-pyrazol-3-one-phenylhydrazones with Antioxidant Properties: X-Ray Crystal and Spectroscopic Studies

Table 2

Antioxidant scavenging activity data of Empp-Ph and Prmpp-Ph (%).

Test compounds	Percentage antioxidant activity %					IC50 μg/ml
	100 μg/ml	200 μg/ml	300 μg/ml	400 μg/ml	500 μg/ml
Empp-Ph	0.29	31.65	79.52	80.36	82.00	193.90	0.82
Prmpp-Ph	3.61	16.15	77.78	77.87	78.8	175.66	0.79
Vit. C	0.26	10.71	34.22	84.51	82.67	87.54	0.91