Table 3.

Comparison of the DPPH assay results of chalcones (17–31) and dihydropyrazoles (32–46) (IC₅₀ values in µg/mL).

Compound	IC50	Compound	IC50
17	33 ± 1	32	44 ± 1
18	38 ± 2	33	51 ± 2
19	32 ± 2	34	38 ± 2
20	24 ± 1	35	32 ± 1
21	18 ±2	36	25 ± 2
22	26 ±2	37	39 ± 2
23	16 ±1	38	28 ± 1
24	29 ±1	39	49 ± 1
25	9 ± 1	40	12 ± 1
26	6 ± 1	41	8 ± 1
27	7 ± 2	42	10 ± 2
28	5 ± 1	43	6 ± 1
29	8 ± 2	44	12 ± 2
30	45 ± 2	45	55 ± 2
31	48 ± 1	46	62 ± 1
Gallic acid 5 ± 1