Pharmaceutical Reference Standards / Impurity Standards

Eszopiclone Impurity C
3-Formyl-2-pyrazinecarboxylic acid
N-Demethyl Eszopiclone Hydrochloride
N-Demethyl Eszopiclone
Zopiclone Impurity 13
Zopiclone Impurity 12
6-Cyanophthalide
2,3-Pyrazinedicarboxylic Acid
Eszopiclone N-Oxide
4-methylpiperazine-1-carboxylic acid
Eszopiclone Deschloro Impurity
N-Nitroso N-Demethyl Eszopiclone

Isotope Labelled Compounds

Eszopiclone-d8