Chemical Properties White or yellowish crystalline powder. Melting point 158-162℃. Soluble in acetone, slightly soluble in ethanol, chloroform, ether, almost insoluble in water. Tasteless, almost odorless. Uses Indomethacin is anti-inflammatory and has obvious antipyretic effect. It is mainly used for rheumatic synganglitis, ankylosing photospondylitis and Chemicalbook osteoarthritis, which are not easy to tolerate or have no significant effect on salicylic acid drugs. It is used as a cyclooxygenase (COX) inhibitor for non-hormone anti-inflammatory analgesics and selectively inhibits COX-1. Blocking prostatic cord biosynthesis. The medicine is anti-inflammatory, antipyretic effect is obvious, mainly used for salicylic acid drugs are not easy to tolerate or the effect is not significant rheumatic synganglitis, ankylosing photospondylitis, osteoarthritis and so on.