Zopiclone impurity-1 (RP 29307) is an impurity and degradation product in the production process of zopiclone[1].
References:
[1].Han X, et al. Identification and characterization of new impurities in zopiclone tablets by LC-QTOF-MS. J Pharm Biomed Anal. 2021 May 30;199:114056.
















