Mesalazine EP Impurity B with CAS No: 591-27-5 is an impurity standard of Mesalazine. Mesalazine is classified as an anti-inflammatory drug. It is used to reduce inflammation in the lining of the digestive tract in individuals with IBD.Mesalazine, also known as mesalamine, is a medication used to treat inflammatory bowel diseases (IBD) particularly ulcerative colitis and Crohns disease. Buy high quality Mesalazine EP Impurity B from Molsyns Research. Molsyns Research is one of the leading manufacturer and exporter of Mesalazine EP Impurity B