CAS Number: 120-57-0

Alternate CAS#:

Chemical Name: Tadalafil Impurity 43 (Piperonal)

Molecular Formula: C8H6O3

Molecular Weight: 150.13

CAS Number: 1598416-03-5

Alternate CAS#:

Chemical Name: Tadalafil Impurity 42

Molecular Formula: C38H28N4O6

Molecular Weight: 636.66

CAS Number: 2058231-15-3

Alternate CAS#:

Chemical Name: Tadalafil Impurity 41

Molecular Formula: C22H21N3O5

Molecular Weight: 407.43

CAS Number: N/A

Alternate CAS#:

Chemical Name: Tadalafil Impurity 40 HCl

Molecular Formula: C23H23N3O5. HCl

Molecular Weight: 421.45 36.46

CAS Number: 1598416-05-7

Alternate CAS#:

Chemical Name: Tadalafil Impurity 4

Molecular Formula: C22H20N2O5

Molecular Weight: 392.41

CAS Number: 2058231-08-4

Alternate CAS#:

Chemical Name: Tadalafil Impurity 39

Molecular Formula: C21H17ClN2O5

Molecular Weight: 412.83

CAS Number: 185750-07-6

Alternate CAS#:

Chemical Name: Tadalafil Impurity 38

Molecular Formula: C14H15ClN2O3

Molecular Weight: 294.74

CAS Number: N/A

Alternate CAS#:

Chemical Name: Tadalafil Impurity 37

Molecular Formula: C24H23N3O5

Molecular Weight: 433.46

CAS Number: 158945-78-8

Alternate CAS#:

Chemical Name: Tadalafil Impurity 36

Molecular Formula: C21H20N2O4

Molecular Weight: 364.4

CAS Number: 749864-17-3

Alternate CAS#:

Chemical Name: Tadalafil Impurity 35

Molecular Formula: C20H18N2O4

Molecular Weight: 350.37

CAS Number: N/A

Alternate CAS#:

Chemical Name: Tadalafil Impurity 34

Molecular Formula: C24H26N4O4

Molecular Weight: 434.5

CAS Number: 2170575-40-1

Alternate CAS#:

Chemical Name: Tadalafil Impurity 33

Molecular Formula: C46H43N5O10

Molecular Weight: 825.88