Identify antimicrobial compound from following.

Step-by-step solution

Cinnamaldehyde is the main active component of cinnamon oil and is widely recognized in chemistry for its strong antimicrobial properties against various bacteria and fungi. Curcumin is primarily known for its antioxidant properties. Methyl salicylate is an analgesic used for pain relief. Ascorbic acid is Vitamin C, which acts primarily as an antioxidant. Thus, cinnamaldehyde is the antimicrobial compound.