Reference  Materials

Eszopiclone-d8

(R)-Zopiclone-d8

*Zopiclone

Zopiclone-d3

Zopiclone-d4

Zopiclone-d8

Zopiclone Impurity 1 (Zopiclone EP Impurity A)

Zopiclone Impurity 2 (Zopiclone EP Impurity B)

Zopiclone Impurity 3 (Zopiclone EP Impurity C)

Zopiclone Impurity 4 ((R)-Zopiclone)

Zopiclone Impurity 5

Zopiclone Impurity 6

Zopiclone Impurity 7

Zopiclone Impurity 8

Zopiclone Impurity 9

Zopiclone Impurity 10

Zopiclone Impurity 11

Zopiclone Impurity 12(Mixture of Diastereomers)

Zopiclone Impurity 13

Zopiclone Impurity 14

Zopiclone Impurity 15

Zopiclone Impurity 16

Zopiclone Impurity 17

Zopiclone Impurity 18

Zopiclone Impurity 19

Zopiclone Impurity 20

Zopiclone Impurity 21

Zopiclone Impurity 22

Zopiclone Impurity 23

Zopiclone Impurity 24

Zopiclone Impurity 25

Zopiclone Impurity 26

Zopiclone Impurity 27

Zopiclone Impurity 28

*Zopiclone Impurity 29(Eszopiclone)

Zopiclone Impurity 30

Zopiclone Impurity 31

Zopiclone Impurity 32

Zopiclone Impurity 33

Zopiclone Impurity 34

Zopiclone Impurity 35

Zopiclone Impurity 35-d8

Zopiclone Impurity 36

Zopiclone Impurity 36-d8

Zopiclone Impurity 37

Zopiclone Impurity 37-d8

Zopiclone Impurity 38

Zopiclone Impurity 39

Zopiclone Impurity 40