Description: Ursodeoxycholic Acid-d4 (Ursodeoxycholic acid-2,2,4,4-d4) is the deuterium substitute of Ursodeoxycholic acid, and is an internal standard for the quantitative determination of Ursodeoxycholic Acid (UDCA) levels by LC/MS or GC/MS.
CAS Number: 347841-46-7
Formula: C24H40O4
Molecular Weight: 396,6
References: Russak EM, et al. Impact of Deuterium Substitution on the Pharmacokinetics of Pharmaceuticals. Ann Pharmacother. 2019;53(2):211-216.