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    Zopiclone Impurity (3-Formyl-2-Pyrazinecarboxylic Acid)

    Zopiclone Impurity (3-Formyl-2-Pyrazinecarboxylic Acid)

    Synonym

    3-formylpyrazine-2-carboxylic acid

    Molecular Formula

    C6H4N2O3

    Molecular Weight

    152.11

    Catalogue Number

    AR-Z01175

    Parent Drug

    ZOPICLONE

    CAS Number

    N/A

    Common Package:10,25,50,100 mg

    Collections: ZOPICLONE

    Category: AR-Z01175 C6H4N2O3 N/A ZOPICLONE

    RELATED PRODUCTS
    3-(dihydroxymethyl)pyrazine-2-carboxylic acid

    Synonym

    3-(dihydroxymethyl)pyrazine-2-carboxylic acid

    Molecular Formula

    C6H6N2O4

    Molecular Weight

    170.12

    Catalogue Number

    AR-Z01179

    Parent Drug

    ZOPICLONE
    6-(5-chloropyridin-2-yl)-5H-pyrrolo[3,4-b]pyrazine-5,7(6H)-dione

    Synonym

    6-(5-chloropyridin-2-yl)-5H-pyrrolo[3,4-b]pyrazine-5,7(6H)-dione

    Molecular Formula

    C11H5ClN4O2

    Molecular Weight

    260.64

    Catalogue Number

    AR-Z01178

    Parent Drug

    ZOPICLONE

    CAS Number

    43200-82-4
    Deschloro-Zopiclone

    Synonym

    7-oxo-6-(pyridin-2-yl)-6,7-dihydro-5H-pyrrolo[3,4-b]pyrazin-5-yl 4-methylpiperazine-1-carboxylate

    Molecular Formula

    C17H18N6O3

    Molecular Weight

    354.37

    Catalogue Number

    AR-Z01177

    Parent Drug

    ZOPICLONE

    CAS Number

    1348046-61-6
    N-Desmethyl Eszopiclone HCl

    Synonym

    (S)-6-(5-chloropyridin-2-yl)-7-oxo-6,7-dihydro-5H-pyrrolo[3,4-b]pyrazin-5-yl piperazine-1-carboxylate hydrochloride

    Molecular Formula

    C16H15ClN6O3. HCl

    Molecular Weight

    374.79 36.46

    Catalogue Number

    AR-Z01176

    Parent Drug

    ZOPICLONE

    CAS Number

    300701-71-7
    Zopiclone impurity (5-(Chloropyridine-2-yl-carbamoyl)pyrazine)

    Synonym

    N-(5-chloropyridin-2-yl)pyrazine-2-carboxamide

    Molecular Formula

    C10H7ClN4O

    Molecular Weight

    234.65

    Catalogue Number

    AR-Z01174

    Parent Drug

    ZOPICLONE
    Eszopiclone Impurity B

    Synonym

    6-(5-chloropyridin-2-yl)-7-hydroxy-6,7-dihydro-5H-pyrrolo[3,4-b]pyrazin-5-one

    Molecular Formula

    C11H7ClN4O2

    Molecular Weight

    262.66

    Catalogue Number

    AR-Z01173

    Parent Drug

    ZOPICLONE

    CAS Number

    43200-81-3
    Zopiclone EP Impurity A (Zopiclone N-Oxide)

    Synonym

    4-(((6-(5-chloropyridin-2-yl)-7-oxo-6,7-dihydro-5H-pyrrolo[3,4-b]pyrazin-5-yl)oxy)carbonyl)-1-methylpiperazine 1-oxide

    Molecular Formula

    C17H17ClN6O4

    Molecular Weight

    404.82

    Catalogue Number

    AR-Z01172

    Parent Drug

    ZOPICLONE

    CAS Number

    43200-96-0
    Eszopiclone (S-Zopiclone)

    Synonym

    (S)-6-(5-chloropyridin-2-yl)-7-oxo-6,7-dihydro-5H-pyrrolo[3,4-b]pyrazin-5-yl 4-methylpiperazine-1-carboxylate

    Molecular Formula

    C17H17ClN6O3

    Molecular Weight

    388.81

    Catalogue Number

    AR-Z01171

    Parent Drug

    ZOPICLONE

    CAS Number

    138729-47-2
    Eszopiclone-d8

    Synonym

    [(7S)-6-(5-chloropyridin-2-yl)-5-oxo-7H-pyrrolo[3,4-b]pyrazin-7-yl] 2,2,3,3,5,5,6,6-octadeuterio-4-methylpiperazine-1-carboxylate

    Molecular Formula

    C17H9ClN6O3D8

    Molecular Weight

    396.86

    Catalogue Number

    AR-Z01170

    Parent Drug

    ZOPICLONE

    CAS Number

    1093385-24-0
    Zopiclone EP Impurity C

    Synonym

    6-(5-chloropyridin-2-yl)-6,7-dihydro-5H-pyrrolo[3,4-b]pyrazin-5-one

    Molecular Formula

    C11H7ClN4O

    Molecular Weight

    246.65

    Catalogue Number

    AR-Z01169

    Parent Drug

    ZOPICLONE

    CAS Number

    148891-53-6
    (R)-Zopiclone

    Synonym

    (R)-6-(5-chloropyridin-2-yl)-7-oxo-6,7-dihydro-5H-pyrrolo[3,4-b]pyrazin-5-yl 4-methylpiperazine-1-carboxylate

    Molecular Formula

    C17H17ClN6O3

    Molecular Weight

    388.81

    Catalogue Number

    AR-Z01168

    Parent Drug

    ZOPICLONE

    CAS Number

    138680-08-7
    Zopiclone-d8

    Synonym

    [6-(5-chloropyridin-2-yl)-5-oxo-7H-pyrrolo[3,4-b]pyrazin-7-yl] 2,2,3,3,5,5,6,6-octadeuterio-4-methylpiperazine-1-carboxylate

    Molecular Formula

    C17H9ClN6O3D8

    Molecular Weight

    396.86

    Catalogue Number

    AR-Z01167

    Parent Drug

    ZOPICLONE

    CAS Number

    1215518-83-4
    N-Desmethyl zopiclone-d8

    Molecular Formula

    C16H7ClN6O3D8

    Molecular Weight

    382.84

    Catalogue Number

    AR-Z01166

    Parent Drug

    ZOPICLONE

    CAS Number

    59878-63-6 (non-d)
    N-Desmethyl Zopiclone HCl

    Synonym

    6-(5-chloropyridin-2-yl)-7-oxo-6,7-dihydro-5H-pyrrolo[3,4-b]pyrazin-5-yl piperazine-1-carboxylate hydrochloride

    Molecular Formula

    C16H15ClN6O3. HCl

    Molecular Weight

    374.79 36.46

    Catalogue Number

    AR-Z01165

    Parent Drug

    ZOPICLONE

    CAS Number

    1216659-29-8
    Zopiclone-d4

    Molecular Formula

    C17H13D4ClN6O3

    Molecular Weight

    392.84

    Catalogue Number

    AR-Z01164

    Parent Drug

    ZOPICLONE

    CAS Number

    43200-80-2