Zopiclone int.

Product Name: 6-(5-chloropyrid-2-yl)-5-hydroxy-7-oxo-5,6-dihydropyrrolo[3,4-b]pyrazine
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Assay; 98% Min
Appearance: light yellow crystalline powder
M.P.: 230 C min
Los son drying: 0.5% Max
Residue on ignition: 0.1% Max
Heavy metal: 20PPM Max
Usage: Zopiclone Intermediate