zopiclone and its Impurities
Zopiclone is used for the short-term treatment of insomnia where sleep initiation or sleep maintenance are prominent symptoms. It is sold under the brand name Imovane.Reference standards of Zopiclone API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.
(R)-6-(5-Chloropyridin-2-yl)-7-oxo-6,7-dihydro-5H-pyrrolo[3,4-b]pyrazin-5-yl 4-methylpiperazine-1-carboxylate (S)-2-hydroxysuccinate
(R)-6-(5-Chloropyridin-2-yl)-7-oxo-6,7-dihydro-5H-pyrrolo[3,4-b]pyrazin-5-yl 4-methylpiperazine-1-carboxylate (S)-2-hydroxysuccinate
Catalogue No.:PAI 26 002210
CAS :
915038-31-2
Molecular Formula : C21H23ClN6O8
Molecular Weight : 522.9
7-Chloromethyloxy-carbonyloxy-6-(5-chloropyridin-2-yl)-6,7-dihydro-5H-pyrrolo[3,4-b]pyrazin-5-one
7-Chloromethyloxy-carbonyloxy-6-(5-chloropyridin-2-yl)-6,7-dihydro-5H-pyrrolo[3,4-b]pyrazin-5-one
Catalogue No.:PA 26 0091001
CAS :
508169-18-4
Molecular Formula : C13H8Cl2N4O4
Molecular Weight : 355.13
6-(5-Chloropyridin-2-yl)-7-oxo-6,7-dihydro-5H-pyrrolo[3,4-b]pyrazin-5-yl 4-nitrosopiperazine-1-carboxylate
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 26 0091002
CAS :
NA
Molecular Formula : C16H14ClN7O4
Molecular Weight : 403.78
N-(5-Chloropyridin-2-yl)-N-(3,4-dihydroxy-6-(hydroxymethyl)-5-(((3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)methoxy)methyl)tetrahydro-2H-pyran-2-yl)nitrous amide
N-(5-Chloropyridin-2-yl)-N-(3,4-dihydroxy-6-(hydroxymethyl)-5-(((3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)methoxy)methyl)tetrahydro-2H-pyran-2-yl)nitrous amide
Catalogue No.:PA 26 0091004
CAS :
NA
Molecular Formula : C19H28ClN3O11
Molecular Weight : 509.89
