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The cruciferous vegetables are richest sources of isothiocyanates and among them, allyl isothiocyanate (AITC) is one of the major constituents. It has been known to possess various activities of therapeutic interest. Keeping this in view, the present study was planned to investigate antioxidant capacity of AITC using Cupric Reducing Antioxidant Capacity (CUPRAC) Assay, 2, 2'-azino-bis (3-ethylbenzothiazoline-6-sulphonic acid (ABTS) assay, β-Carotene bleaching (BCB) assay and superoxide anion scavenging assay. The antimutagenic potency of AITC was determined by modifying Vibrio harveyi bioluminescence assay against direct acting mutagen 4-nitro-o-phenylenediamine (NPD) and indirect acting mutagens 2-acetylaminofluorene (2-AAF), 7,12-Dimethylbenz[a]anthracene (DMBA) in presence and absence of S9. Furthermore, the antihemolytic activity was evaluated using hemolysis assay. Among the different activities carried out, it was observed that AITC exhibited efficient antimutagenic potential against direct acting mutagen NPD and indirect acting mutagens 2-AAF and DMBA in the presence as well as absence of S9 fraction in Vibrio harveyi bioluminescence assay. Overall, our results established the efficiency of AITC to act as strong antimutagenic agent, efficient anti-hemolytic agent and mild antioxidant agent thus, making AITC an interesting candidate to be further explored for drug discovery. [ABSTRACT FROM AUTHOR]