A1
Pyrrole, Monopyrrole

A2
Porphyrines

A3
Porphyrines

A4
Porphyrines

A5
Pyrrole, Monopyrrole

A6
Pyrrole, Monopyrrole

A7
Porphyrines

A8
Pyrrole, Monopyrrole

A9
Pyrrole, Monopyrrole, N-substituted

A10
Porphyrines