Zopiclone N-Oxide (Eszopiclone Impurity A)

Name	6-(5-chloropyridin-2-yl)-7-oxo-6,7-dihydro-5H-pyrrolo[3,4-b]pyrazin-5-yl 4-methylpiperazine-1-carboxylate 4-oxide
Synonyms	RP 2975 RP 29753 ZOPICLONE N-OXIDE Zopiclone N-Oxide (Eszopiclone Impurity A) Zopiclone N-Oxide(Mixture of diastereomers) Zopiclone N-Oxide (Eszopiclone Impurity A)(Mixture of Diastereomers) 6-(5-Chloro-2-pyridyl)-7-((4-oxo-4-methyl-1-piperazinyl)carbonyloxy)-6,7-dihydro(5H)pyrrolo(3,4-b)pyrazin-5-one 6-(5-chloropyridin-2-yl)-7-oxo-6,7-dihydro-5H-pyrrolo[3,4-b]pyrazin-5-yl 4-methylpiperazine-1-carboxylate 4-oxide 4-Methyl-1-piperazinecarboxylic acid 6-(5-chloro-2-pyridinyl)-6,7-dihydro-7-oxo-5H-pyrrolo[3,4-b]pyrazin-5-yl ester 4-oxide 1-Piperazine-carboxylic Acid 4-Methyl-4-oxide 6-(5-Chloro-pyridin-2-yl)-7-oxo-6,7-dihydro-5H-pyrrolo[3,4-b]pyrazin-5yl Ester 1-Piperazinecarboxylic acid, 4-methyl-, 6-(5-chloro-2-pyridinyl)-6,7-dihydro-7-oxo-5H-pyrrolo(3,4-b)pyrazin-5-yl ester, 4-oxide
CAS	43200-96-0
EINECS	641-896-9
InChI	InChI=1/C17H17ClN6O4/c1-24(27)8-6-22(7-9-24)17(26)28-16-14-13(19-4-5-20-14)15(25)23(16)12-3-2-11(18)10-21-12/h2-5,10,16H,6-9H2,1H3

Molecular Formula	C17H17ClN6O4
Molar Mass	404.81
Melting Point	>140°C (dec.)
Flash Point	9℃
Solubility	Chloroform (Slightly, Heated), DMSO (Slightly), Methanol (Slightly, Heated, Soni
Appearance	neat
Color	White to Light Brown
pKa	4.92±0.20(Predicted)
Storage Condition	2-8°C

Risk Codes	R11 - Highly Flammable R23/24/25 - Toxic by inhalation, in contact with skin and if swallowed. R39/23/24/25 -
Safety Description	S7 - Keep container tightly closed. S16 - Keep away from sources of ignition. S36/37 - Wear suitable protective clothing and gloves. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)
UN IDs	UN1230 - class 3 - PG 2 - Methanol
WGK Germany	1
HS Code	2933790002

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CAS: 43200-96-0
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