C1896910
Tadalafil Impurity 21
CAS No.:951661-85-1,Tadalafil Impurity 21
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C1896910

Tadalafil Impurity 21

951661-85-1

C20H19N3O3

349.38

CATO

C1896910

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witnessing note

witnessing note

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For research and laboratory use only. Not for human or veterinary use.

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O1C2=C(C=CC([C@@H]3N[C@@H](C(=O)NC)CC4C5C(NC3=4)=CC=CC=5)=C2)OC1

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