Heterocyclic compound is a major class of organic chemical compounds characterized by some or all of the atoms in their molecules are joined in rings containing atleast one atom of an element other than carbon.

CAS Number
113740-61-7; 1000690-91-4(DiHCl Salt);113740-61-7(Freebase)
CAS Number
97743-99-2
Alternate CAS Number
62498-67-3(Freebase);1188264-72-3(HBr Salt);97743-99-2(HCl Salt);62498-68-4(oxalate salt)
CAS Number
62498-71-9(Salt)
Alternate CAS Number
63284-72-0(Freebase)