Antimicrobial, antioxidant, and sun protection potential of the isolated compounds from Spermacoce princeae (K. Schum)

Table 2 DPPH percentage scavenging activity of the compounds 2 and 3

Compounds	Percentage scavenging activity (%), IC₅₀ (µg/ml) in brackets)
Compound 2	83.87 ± 0.01 (64.81)
Compound 3	58.58 ± 0.02 (666.85)
Ascorbic acid	95.90 ± 0.05 (2.59 × 10^–16)

2, kaempferol-3-O-rutinoside; 3, rutin; IC_50, concentration of the compound required to scavenge DPPH by 50%

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