6-Hydroxy Chlorzoxazone-13C6

6-Hydroxy Chlorzoxazone-13C6 is a the 13C-labeled 6-Hydroxy Chlorzoxazone (HY-W016221). 6-Hydroxy Chlorzoxazone is a metabolite of Chlorzoxazone (HY-B1462). Chlorzoxazone is a centrally acting muscle relaxant used to treat muscle spasm and the resulting pain or discomfort.