eszopiclone and its Impurities
Eszopiclone is used to treat a certain sleep problem. It may help you fall asleep faster, stay asleep longer, and lessen how often you wake up during the night, so you can get a better night's rest. Eszopiclone, sold under the brand-name Lunesta. Reference standards of Eszopiclone API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.


Eszopiclone Related Compound A (6-(5-Chloropyridin-2-yl)-7-oxo-6,7-dihydro-5H-pyrrolo [3,4,b] pyraz (1255861)
Eszopiclone Related Compound A (6-(5-Chloropyridin-2-yl)-7-oxo-6,7-dihydro-5H-pyrrolo [3,4,b] pyraz (1255861)
Catalogue No.:PA USP1255861
CAS :
43200-96-0
Molecular Formula : NA
Molecular Weight : NA


6-(3,5-Dichloropyridin-2-yl)-7-oxo-6,7-dihydro-5H-pyrrolo[3,4-b]pyrazin-5-yl 4-methylpiperazine-1-carboxylate
6-(3,5-Dichloropyridin-2-yl)-7-oxo-6,7-dihydro-5H-pyrrolo[3,4-b]pyrazin-5-yl 4-methylpiperazine-1-carboxylate
Catalogue No.:PA 32 0291003
CAS :
NA
Molecular Formula : C17H16Cl2N6O3
Molecular Weight : 423.25


bis(6-(5-Chloropyridin-2-yl)-7-oxo-6,7-dihydro-5H-pyrrolo[3,4-b]pyrazin-5-yl) piperazine-1,4-dicarboxylate
bis(6-(5-Chloropyridin-2-yl)-7-oxo-6,7-dihydro-5H-pyrrolo[3,4-b]pyrazin-5-yl) piperazine-1,4-dicarboxylate
Catalogue No.:PA 32 0291006
CAS :
NA
Molecular Formula : C28H20Cl2N10O6
Molecular Weight : 663.43


6-(5-Methylpyridin-2-yl)-6,7-dihydro-5H-pyrrolo[3,4-b]pyrazine-5,7-diyl bis(4-methylpiperazine-1-carboxylate)
6-(5-Methylpyridin-2-yl)-6,7-dihydro-5H-pyrrolo[3,4-b]pyrazine-5,7-diyl bis(4-methylpiperazine-1-carboxylate)
Catalogue No.:PA 32 0291007
CAS :
NA
Molecular Formula : C24H32N8O4
Molecular Weight : 496.57


(6-(5-Chloropyridin-2-yl)-7-oxo-6,7-dihydro-5H-pyrrolo [3,4,b] pyrazin-5-yl 4-methylpiperazine-1-carboxylate 4-oxide)
(6-(5-Chloropyridin-2-Yl)-7-Oxo-6,7-Dihydro-5H-Pyrrolo [3,4,B] Pyrazin-5-Yl 4-Methylpiperazine-1-Carboxylate 4-Oxide)
Catalogue No.:PA 32 0291009
CAS :
43200-96-0
Molecular Formula : C17H17ClN6O4
Molecular Weight : 404.81


(S)-6-(5-Chloropyridin-2-yl)-7-oxo-6,7-dihydro-5H-pyrrolo[3,4-b]pyrazin-5-yl 4-nitrosopiperazine-1-carboxylate
(S)-6-(5-Chloropyridin-2-yl)-7-oxo-6,7-dihydro-5H-pyrrolo[3,4-b]pyrazin-5-yl 4-nitrosopiperazine-1-carboxylate
Catalogue No.:PA 32 0291011
CAS :
NA
Molecular Formula : C16H14ClN7O4
Molecular Weight : 403.78