Tamsulosin EP Impurity I with CAS No: 3259-03-8. is an impurity standard of Tamsulosin. Tamsulosin is a medication primarily used to treat the symptoms of an enlarged prostate a condition known as benign prostatic hyperplasia (BPH). Tamsulosin is classified as an alpha-1 adrenergic receptor antagonist and works by relaxing the muscles in the prostate and the neck of the bladder.Tamsulosin is typically taken orally in the form of capsules or tablets. Buy high quality Tamsulosin EP Impurity I from Molsyns Research. Molsyns Research is one of the leading manufacturer and exporter of Tamsulosin EP Impurity I