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Acylhydrazide Schiff Bases: DPPH Radical and Superoxide Anion Scavengers

[ Vol. 8 , Issue. 4 ]


Khalid Mohammed Khan, Muhammad Taha, Farzana Naz, Salman Siddiqui, Sajjad Ali, Fazal Rahim, Shahnaz Perveen and M. Iqbal Choudhary   Pages 705 - 710 ( 6 )


Acylhydrazide Schiff bases 1-27 were evaluated for their in vitro DPPH radical and superoxide anion scavenging activity. They showed a varying degree of DPPH radical scavenging activity with IC50 values between 31.25 - 473.59 µM. Compounds 8, 2, and 10 have IC50 values 31.25 ± 1.32, 34.40 ± 0.66, and 37.24 ± 0.4 µM, respectively. Standard npropylgallate showed an IC50 value 30.12 ± 0.27 µM. Acylhydrazides 1-27 exhibited in vitro superoxide anion scavenging activities with IC50 values in the range of 175.6 - 450.89 µM. Results demonstrated that acylhyrazides 8, 2, and 10 have DPPH scavenging activity, comparable to standard n-propyl gallate while acylhyrazides 1-27 were found to be less superoxide anion scavenging active than the standard n-propyl gallate (IC50 = 106.34 ± 1.6 µM).


Acylhyrazide Schiff bases, DPPH scavenger, superoxide anion scavenger, antioxidant, chemotherapeutic agents, antifungal, antiproliferative properties, anticonvulsant, analgesic


H. E. J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University Karachi, Karachi-75270, Pakistan.

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