Which of the following statements is not true 

$0.2\%$ solution of phenol acts as an antiseptic and its $1\%$ solution is a disinfectant. Aspirin is analgesic as well as antipyretics. Pheromones is a chemical means of communication. Sulfadiazine is a synthetic chemotherapeutic agents which contain sulfonamide, $-\mathrm{S}{0}_2{\mathrm{NH}}_2$ group in their structure acts as an antibacterial drug