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
1293489-74-3(free base)
Alternate CAS Number
1293342-97-8(HCl salt)
CAS Number
1429908-35-9(free base)
Alternate CAS Number
2228086-73-3(HBr Salt)
CAS Number
129-06-6
Alternate CAS Number
67430-45-9(Na Clathrate Salt);81-81-2(Freebase)
CAS Number
65-19-0
Alternate CAS Number
146-48-5(free base)
CAS Number
146-48-5
Alternate CAS Number
65-19-0(HCl)
CAS Number
87691-87-0
Alternate CAS Number
87691-88-1(HCl Salt)
CAS Number
146939-27-7
Alternate CAS Number
138982-67-9(HCl Monohydrate salt)
CAS Number
118072-93-8
Alternate CAS Number
165800-06-6(Monohydrate Salt)
CAS Number
82626-48-0
Alternate CAS Number
99294-93-6(Tartrate salt)