English name:Pirfenidone CAS:53179-13-8 Molecular formula:C12H11NO Molecular weight:185.22 Specification:25kg/barrel Registration number:Y20220001113 Registration state:I Pirfenidone can reduce the accumulation of inflammatory cells in response to various stimuli, and reduce cell proliferation, fibrosis-related protein and cytokine production, and extracellular matrix synthesis and accumulation in fibroblasts stimulated by cell . It is used for mild and moderate idiopathic pulmonary interstitial fibrosis.