Tauroursodeoxycholate (sodium) (Standard) is the analytical standard of Tauroursodeoxycholate (sodium). This product is intended for research and analytical applications. Tauroursodeoxycholate (Tauroursodeoxycholic acid, TUDCA) sodium is an endoplasmic reticulum (ER) stress inhibitor. Tauroursodeoxycholate significantly reduces expression of apoptosis molecules, such as caspase-3 and caspase-12. Tauroursodeoxycholate also inhibits ERK.