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Cerilliant now offers a stable-labeled internal standard of the nonbenzodiazepine metabolite, Zopiclone-N-Oxide-D4.

Zopiclone-N-Oxide-D4, Z-014
100 µg/mL in Methanol with 1% 1 M HCl

A stable-labeled internal standard suitable for quantitation of zopiclone N-oxide levels in urine, serum, or plasma by LC/MS or GC/MS for urine drug testing, clinical toxicology, or forensic analysis. Zopiclone N-oxide is a primary, active metabolite of zopiclone in urine as well as a major pharmaceutical impurity of zopiclone known as Eszopiclone Impurity A. The parent drug, zopiclone, is a non-benzodiazepine hypnotic sold under the trade names Imovane® and Zimovane® and is used in the treatment of insomnia.

Coming soon - Cerilliant will introduce Certified Spiking Solutions® of  N-Desmethylzopiclone (D-111) and N-Desmethylzopiclone-D4 (D-112).                

Cerilliant Certified Solution Standards and Certified Spiking Solutions are manufactured to the highest industry standards. We are accredited to ISO 17034 and ISO/IEC 17025 & certified ISO 9001.

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