Title: Potassium Guaiacolsulfonate

CAS Registry Number: 1321-14-8

CAS Name: 3-Hydroxy-4-methoxybenzenesulfonic acid monopotassium salt mixt with monopotassium 4-hydroxy-3-methoxybenzenesulfonate

Additional Names: sulfogaiacol

Trademarks: Thiocol (Roche); Orthocoll

Molecular Formula: C7H7KO5S

Molecular Weight: 242.29

Percent Composition: C 34.70%, H 2.91%, K 16.14%, O 33.02%, S 13.23%

Literature References: A mixture of the potassium salts of 4- and 5-guaiacolsulfonic acid.

Properties: White, odorless crystals or cryst powder; faint bitter taste. Gradually turns pink on exposure to air and light. Soluble in 7.5 parts water. Almost insol in alcohol. Insol in ether. The aq soln is neutral to litmus. Keep well closed and protected from light.

Therap-Cat: Expectorant.

Keywords: Expectorant.