Darifenacin Impurity 1 with CAS No: 133099-09-9 is an impurity standard of Darifenacin. Darifenacin is an antimuscarinic medication primarily used for the treatment of overactive bladder (OAB). Structurally, it is a quinuclidine derivative. Darifenacin works by selectively blocking muscarinic M3 receptors in the bladder, leading to reduced bladder muscle contractions and increased bladder capacity. Administered orally, it helps alleviate symptoms associated with OAB, such as urgency, frequency, and urge incontinence. Buy high quality Darifenacin Impurity 1 from Molsyns Research. Molsyns Research is one of the leading manufacturer and exporter of Darifenacin Impurity 1