Eszopiclone
C17H17ClN6O3
388.81
1-Piperazinecarboxylic acid, 4-methyl-, 6-(5-chloro-2-pyridinyl)-6,7-dihydro-7-oxo-5H-pyrrolo[3,4-b]pyrazin-5-yl ester, (5S)-;
(+)-(5S)-6-(5-Chloropyridin-2-yl)-7-oxo-6,7-dihydro-5H-pyrrolo[3,4-b]pyrazin-5-yl 4-methylpiperazine-1-carboxylate [138729-47-2]
1-Piperazinecarboxylic acid, 4-methyl-, 6-(5-chloro-2-pyridinyl)-6,7-dihydro-7-oxo-5H-pyrrolo[3,4-b]pyrazin-5-yl ester, (5S)-;
(+)-(5S)-6-(5-Chloropyridin-2-yl)-7-oxo-6,7-dihydro-5H-pyrrolo[3,4-b]pyrazin-5-yl 4-methylpiperazine-1-carboxylate [138729-47-2]
DEFINITION
Eszopiclone contains NLT 98.5% and NMT 101.0% of eszopiclone (C17H17ClN6O3), calculated on the dried basis.
USP REFERENCE STANDARDS FOR PURCHASE
USP Eszopiclone RSUSP Eszopiclone Related Compound A RS
USP Zopiclone R-Isomer RS