Tauroursodeoxycholic acid (TUDCA) is an ambiphilic bile acid. It is the taurine conjugate form of ursodeoxycholic acid (UDCA). Humans are found to have trace amounts of TUDCA. However, bears contain large amounts of TUDCA in their bile; UDCA and conjugates comprise about 47% of the bile in American black bears and up to 76% in Asiatic bears. TUDCA has been used in ancient Asian pharmacopoeias for its supposed beneficial effects. UDCA is produced in several countries for the treatment of gallstones and liver cirrhosis. It is not approved by the Food and Drug Administration, in the U.S. while UDCA is approved in the United States for the treatment of primary biliary cirrhosis Ongoing research is finding TUDCA has diminishing apoptotic effects, helping with cardiac function, Huntington's disease, Parkinson's Disease, and stroke. Recently, TUDCA has been found to have protective effects in the eye, especially concerning retinal degenerative disorders.

CAS：14605-22-2
中文别名：牛磺熊去氧胆酸;牛磺熊脱氧胆酸;牛磺雄去氧胆酸;牛熊去氧胆酸钠;牛磺酸熊脱氧胆酸;
英文别名：2-[[(4R)-4-[(3R,5S,7S,8R,9S,10S,13R,14S,17R)-3,7-dihydroxy-10,13-dimethyl-2,3,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl]pentanoyl]amino]ethanesulfonic acid;TAUROURSODEOXYCHOLIC ACID;3α,7β-Dihydroxy-5β-cholan-24-oic Acid N-(2-Sulfoethyl)amide Dihydrate;Tauroursodeoxycholic acid dihydrate;Tauroursodeoxycholic acid sodium salt;Sodium tauroursodeoxycholate;3α,7β-Dihydroxy-5β-cholan-24-oic acid N-(2-sulfoethyl)amide;
分子式：C26H45NO6S
分子量：499.704
精确质量：499.297
Psa：132.31
Logp：4.869

PubChem号：24899875
MDL号：MFCD00065451

外观与性状：白色固体
密度：1.216 g/cm3
沸点：496.4ºC at 760mmHg
熔点：173-175°C
闪点：214.2ºC
折射率：46 ° (C=1, EtOH)

RTECS号：KI7372500
安全说明：S22; S24/25
WGK Germany：2