AOAC Working Group Chair Orientation

N-Ethyl Tadalafil CAS No. N/A C23H21N3O4 M.W. 403.44 T-1013

6R,12S-Tadalafil CAS No. 171596-27-3 C22H19N3O4 M.W. 389.41 T-1014

Tadalafil Hydroxylactam Impurity C22H19N3O6 M.W. 421.41 T-1015

Tadalafil Aminohemiketal Impurity C22H19N3O6 M.W. 421.41 T-1016

Tadalafil Spiro-urethane Impurity C22H19N3O6 M.W. 421.41 T-1017

Tadalafil Hydroxyquinoline Impurity C22H17N3O5 M.W. 403.40 T-1018

Tadalafil Ketolactam Impurity CAS No. 1346605-38-6 C22H19N3O6 M.W. 421.41 T-1019

Tadalafil-d3 CAS No. 960226-55-5 C22H16N3O4D3 M.W. 392.43 T-102

Tadalafil Spiro-oxindole Impurity C22H19N3O5 M.W. 405.41 T-1020

Acetaminotadalafil CAS No. N/A C23H20N4O5 M.W. 432.44 T-1022

Tadalafil Oxo Impurity CAS No. 1346602-17-2 C22H17N3O5 M.W. 403.40 T-1023

Tadalafil EP Impurity B (ent- tadalafil) CAS No. 629652-72-8 C22H19N3O4 M.W. 389.41 T-1025

Tadalafil Related Compound CAS No. N/A C26H29N3O5 M.W. 463.54 T-1027

Tadalafil Related Compound 2 C24H25N3O5 M.W. 435.48 T-1028

2-Hydroxypropylnortadalafil C24H23N3O5 M.W. 433.47 T-1029

Tadalafil CAS No. 171596-29-5 C22H19N3O4 M.W. 389.41 T-103

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