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
1429908-35-9(free base)
Alternate CAS Number
2228086-73-3(HBr Salt)
CAS Number
1293489-74-3(free base)
Alternate CAS Number
1293342-97-8(HCl salt)
CAS Number
1293489-71-0(freebase)
Alternate CAS Number
1293342-91-2(HCl Salt); 1293343-91-5(HBr)
CAS Number
98-01-1(freebase)
Alternate CAS Number
721436-53-9 (hydrate)
CAS Number
721958-74-3
Alternate CAS Number
2202710-78-7(DiHCl Salt)
CAS Number
140171-66-0
Alternate CAS Number
400024-11-5(Maleate Salt)