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Zopiclone impurity (5-(Chloropyridine-2-yl-carbamoyl)pyrazine)

  • CAS No:
  • Molecular formula: C10H7ClN4O
  • Molecular weight: 234.65

Eszopiclone ((S)-Zopiclone)

  • CAS No: 138729-47-2
  • Molecular formula: C17H17ClN6O3
  • Molecular weight: 388.81

Zopiclone EP Impurity A (Zopiclone N-Oxide)

  • CAS No: 43200-96-0
  • Molecular formula: C17H17ClN6O4
  • Molecular weight: 404.82

Eszopiclone Impurity B

  • CAS No: 43200-81-3
  • Molecular formula: C11H7ClN4O2
  • Molecular weight: 262.66

Reference material

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