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Letrozole API and its Impurities
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Letrozole API

CAT No :   GS.14.LET.00

CAS No :   112809-51-5

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Letrozole EP Impurity A / Letrozole USP Related Co...

CAT No :   GS.14.LET.01

CAS No :   112809-52-6

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Letrozole EP Impurity B

CAT No :   GS.14.LET.02

CAS No :   113402-31-6

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Letrozole Inhouse Impurity 1 / 4,4',4'&#...

CAT No :   GS.14.LET.31

CAS No :   117678-96-3

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Letrozole Inhouse Impurity 10 / 4-Fluorobenzonitri...

CAT No :   GS.14.LET.40

CAS No :   1194-02-1

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Letrozole Inhouse Impurity 11 / Letrozole Mono-Ami...

CAT No :   GS.14.LET.41

CAS No :   2500927-47-7

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Letrozole Inhouse Impurity 2 / Tris(4-cyanophenyl)...

CAT No :   GS.14.LET.32

CAS No :   117678-98-5

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Letrozole Inhouse Impurity 3 / 4-((2H-1,2,3-Triazo...

CAT No :   GS.14.LET.33

CAS No :   112809-25-3

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Letrozole Inhouse Impurity 4 / Letrozole Diacid Im...

CAT No :   GS.14.LET.34

CAS No :   1644566-39-1

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Letrozole Inhouse Impurity 5 / Letrozole Monoacid ...

CAT No :   GS.14.LET.35

CAS No :   N/A

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Letrozole Inhouse Impurity 6 / Letrozole N-Oxide

CAT No :   GS.14.LET.36

CAS No :   N/A

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Letrozole Inhouse Impurity 7 / 4-Descyano-4-bromo-...

CAT No :   GS.14.LET.37

CAS No :   143030-54-0

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Letrozole Inhouse Impurity 8 / 4-Cyanobenzyl Bromi...

CAT No :   GS.14.LET.38

CAS No :   17201-43-3

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Letrozole Inhouse Impurity 9 / 1,2,4-Triazole

CAT No :   GS.14.LET.39

CAS No :   288-88-0