White crystal or crystalline powder,with acid taste and is stable in dry air,slowly hydrolyze into salicylic acid and acetic anhydride.Its solution shows and acid reaction.Sparingly soluble in alcohol,chloroform or ether,slightly soluble in water or absolute ether,it dissolves in alkali hydroxide or alkali carbonate solution and decomposes at the same time.
This product is an antipyretic ant rheumatic that is used to allay fever, headache,arthralgia, acticerheumatism,and rheumatoid arthritis.Toothache and dysmenorrhea and as raw material for making anti-carcinogen.
