p-Toluoyl chloride is an aromatic compound used as a reagent to synthesize (+)-Yashabushitriol, a plant metabolite that is naturally found in the male flowers of Alnus sieboldiana matsum. p-Toluoyl chloride is also used as a reagent to prepare derivatives of Desloratadine (D290250). Desloratadine is a selective H1-receptor antagonist that has anti-inflammatory effects and is used to treat patients with allergic rhinitis. Molecular Formula: C8H7ClO Molecular Weight: 154.59