Tiopronin

Tiopronin
Names
IUPAC name
2-(2-sulfanylpropanoylamino)acetic acid
Other names
2-mercaptopropionylglycine
Identifiers
ATC code R05CB12
QG04BC90
1859822
1953-02-2 Yes
29335-92-0 R Yes
ChEMBL ChEMBL1314 Yes
ChemSpider 5283 Yes
180938 R Yes
643292 S Yes
EC number 217-778-4
Jmol-3D images Image
Image
KEGG D01430 Yes
MeSH Tiopronin
PubChem 5483
208825 R
736152 S
RTECS number MC0596500
UNII C5W04GO61S Yes
Properties
Molecular formula
C5H9NO3S
Molar mass 163.19 g·mol−1
Appearance White, opaque crystals
Melting point 93 °C (199 °F; 366 K)
log P −0.674
Acidity (pKa) 3.356
Basicity (pKb) 10.641
Pharmacology
Legal status
  • US: C (Risk not ruled out)
Hazards
GHS pictograms
GHS signal word WARNING
H302
EU classification Xn
R-phrases R22
S-phrases S36/37
1,300 mg kg−1 (oral, rat)
Related compounds
Related alkanoic acids
Related compounds
Except where noted otherwise, data is given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
 Yes verify (what is: Yes/?)
Infobox references

Tiopronin (trade name Thiola) is a prescription thiol drug used to control the rate of cystine precipitation and excretion in the disease cystinuria.[1][2] Due to the rarity of the disorder, tiopronin falls under the classification of an orphan drug.

Uses

Tiopronin is used primarily for cystinuria and is well known in the cystinuric community. Depending on the severity of a person's cystinuria, tiopronin may be taken for life, possibly starting in early childhood.

It may also be used for Wilson's disease (an overload of copper in the body), and certain rare types of arthritis, though tiopronin is not an anti-inflammatory.

Tiopronin is also sometimes used as a stabilizing agent for metal nanoparticles. The thiol group binds to the nanoparticles, preventing coagulation.[3]

Side effects

Tiopronin may present a wide variety of side effects, but side effects are usually limited and subside over time with continued usage. Due to the rarity of the disease cystinuria, tiopronin has not been studied substantially.

References

  1. Lindell, Å.; Denneberg, T.; Hellgren, E.; Jeppsson, J. -O.; Tiselius, H. -G. "Clinical course and cystine stone formation during tiopronin treatment". Urological Research 23 (2): 111–117. doi:10.1007/BF00307941.
  2. Coe, Fredric L.; Parks, Joan H.; Asplin, John R. (15 October 1992). "The Pathogenesis and Treatment of Kidney Stones". New England Journal of Medicine 327 (16): 1141–1152. doi:10.1056/NEJM199210153271607.
  3. Jennifer A. Dahl, Bettye L. S. Maddux, and James E. Hutchison (2007). "Toward Greener Nanosynthesis". Chemical Reviews 107 (6): 2228–2269. doi:10.1021/cr050943k. PMID 17564480.

External links