Thiamazole EP Impurity B with CAS No: 616-47-7 is an impurity standard of Thiamazole. Thiamazole is also known as methimazole in its most common for is a medication used in the treatment of hyperthyroidism a condition characterized by an overactive thyroid gland that produces excessive amounts of thyroid hormones. Thiamazole is a thioureylene derivative and belongs to a class of drugs called antithyroid agents. Thiamazole is typically taken orally in tablet or liquid form. Buy high quality Thiamazole EP Impurity B from Molsyns Research. Molsyns Research is one of the leading manufacturer and exporter of Thiamazole EP Impurity B