6-(5-Chloropyrid-2yl) 5-hydroxy-7-oxo-5,6-dihydropyrrolo-[3,4-b]-pyrazine

BGC Id:	523142934285
CAS No:	43200-81-3
Synonyms:	rp 29307 ; zopii ; eszopiclone impurity b ; eszopiclone imp.b ; [eszoplicone impurity b] ; 6-(5-chloro-2-pyridyl)-6,7-dihydro-7-hydroxy-5h-pyrrolo[3,4-b] ; zopiclone intermediate ii ; 6-(5-chloro-pyridin-2-yl)-7-hydroxy-6,7-dihydro-pyrrolo3,4-bpyrazin-5-one ; intermediate for zopiclone ii ; 6-(5-chloropyridin-2-yl)-5-hydroxy-7-oxo-5,6-dihydroprolo(3,4b)pyrazine
Molecular Formula:	C11H7ClN4O2
Molecular Weight:	262.65
EINECS:	256-139-4

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Country: Germany

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The last intensive check and update was carried out on 2025/10/30.

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Synonyms:

rp 29307 ; zopii ; eszopiclone impurity b ; eszopiclone imp.b ; [eszoplicone impurity b] ; 6-(5-chloro-2-pyridyl)-6,7-dihydro-7-hydroxy-5h-pyrrolo[3,4-b] ; zopiclone intermediate ii ; 6-(5-chloro-pyridin-2-yl)-7-hydroxy-6,7-dihydro-pyrrolo3,4-bpyrazin-5-one ; intermediate for zopiclone ii ; 6-(5-chloropyridin-2-yl)-5-hydroxy-7-oxo-5,6-dihydroprolo(3,4b)pyrazine

CAS:

43200-81-3

EINECS:

256-139-4

Molecular Formula:

C11H7ClN4O2

MDL:

MFCD02684321

Properties

Molecular Weight:

262.65 g·mol−1

Density:

1.65 g/cm³ (Predicted)

Melting point:

240.5-241.50C

Boiling point:

525.24° C at 760 mmHg (Predicted)

Safety Information

Hazard Classes:

Storage temperature:

-20 °C Freezer

What other providers are available for CAS 43200-81-3?

In addition to the providers presented here for 6-(5-Chloropyrid-2yl) 5-hydroxy-7-oxo-5,6-dihydropyrrolo-[3,4-b]-pyrazine with the CAS number 43200-81-3, there are other 58 providers with slightly different product names available for this CAS number.

Eszopiclone Impurity B

AK Scientific, Inc. +1 additional providers that we know from the past

Zopiclone EP Impurity B

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

+2 additional providers that we know from the past

6-(5-Chloro-2-pyridyl)-6,7-dihydro-7-hydroxy-5H-pyrrolo(3,4-b)pyrazin-5-one

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

BLD Pharmatech Ltd +1 additional providers that we know from the past