Taurocholic acid

Taurocholic acid, known also as cholaic acid, cholyltaurine, or acidum cholatauricum, is a deliquescent yellowish crystalline bile acid involved in the emulsification of fats. It occurs as a sodium salt in the bile of mammals. It is a conjugate of cholic acid with taurine. In medical use, it is administered as a cholagogue and choleretic.^[1]

Taurocholic acid

Taurocholic acid
Names
IUPAC name 2-(3α,7α,12α-Trihydroxy-5β-cholan-24-amido)ethane-1-sulfonic acid
Systematic IUPAC name 2-{(4R)-4-[(1R,3aS,3bR,4R,5aS,7R,9aS,9bS,11S,11aR)-4,7,11-Trihydroxy-9a,11a-dimethylhexadecahydro-1H-cyclopenta[a]phenanthren-1-yl]pentanamido}ethane-1-sulfonic acid
Identifiers
CAS Number	81-24-3 Y
3D model (JSmol)	Interactive image
ChEBI	CHEBI:28865 Y
ChEMBL	ChEMBL224867 Y
ChemSpider	6423 Y
ECHA InfoCard	100.001.216
IUPHAR/BPS	4547
PubChem CID	6675
UNII	5E090O0G3Z Y
CompTox Dashboard (EPA)	DTXSID00883259
InChI InChI=1S/C26H45NO7S/c1-15(4-7-23(31)27-10-11-35(32,33)34)18-5-6-19-24-20(14-22(30)26(18,19)3)25(2)9-8-17(28)12-16(25)13-21(24)29/h15-22,24,28-30H,4-14H2,1-3H3,(H,27,31)(H,32,33,34)/t15-,16+,17-,18-,19+,20+,21-,22+,24+,25+,26-/m1/s1 Y Key: WBWWGRHZICKQGZ-HZAMXZRMSA-N Y InChI=1/C26H45NO7S/c1-15(4-7-23(31)27-10-11-35(32,33)34)18-5-6-19-24-20(14-22(30)26(18,19)3)25(2)9-8-17(28)12-16(25)13-21(24)29/h15-22,24,28-30H,4-14H2,1-3H3,(H,27,31)(H,32,33,34)/t15-,16+,17-,18-,19+,20+,21-,22+,24+,25+,26-/m1/s1 Key: WBWWGRHZICKQGZ-HZAMXZRMBW
SMILES C[C@H](CCC(=O)NCCS(=O)(=O)O)[C@H]1CC[C@@H]2[C@@]1([C@H](C[C@H]3[C@H]2[C@@H](C[C@H]4[C@@]3(CC[C@H](C4)O)C)O)O)C
Properties
Chemical formula	C26H45NO7S
Molar mass	515.7058 g/mol
Melting point	125.0 °C (257.0 °F; 398.1 K)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Y verify (what is YN ?) Infobox references

Hydrolysis of taurocholic acid yields taurine.

For commercial use, taurocholic acid is manufactured from cattle bile, a byproduct of the meat-processing industry.^[2]

This acid is also one of the many molecules in the body that has cholesterol as its precursor.^{[citation needed]}

In a large prospective study (involving 569 incident colon cancer cases and 569 matched controls) it was found that prediagnostic concentrations of circulating taurocholic acid, as well as six other bile acids, were statistically significantly associated with increased colon cancer risk.^[3]

Toxicity

The median lethal dose of taurocholic acid in newborn rats is 380 mg/kg.^{[citation needed]}

See also

• Deoxycholic acid