Ursocholic acid-d4 (UCA-d4) is intended for use as an internal standard for the quantification of UCA by GC- or LC-MS. UCA is a bile acid and the 7β-hydroxyepimer of cholic acid .1 Dietary administration of UCA (0.25%) decreases gallbladder cholesterol, phospholipid, and bile acid levels and the occurrence of gallstones in male mice fed a lithogenic diet.
1.Uchida, K., Akiyoshi, T., Igmi, H., et al.Differential effects of ursodeoxycholic acid and ursocholic acid on the formation of biliary cholesterol crystals in miceLipids26(7)526-530(1991)
















