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
118072-93-8
Alternate CAS Number
165800-06-6(Monohydrate Salt)
CAS Number
380843-75-4
Alternate CAS Number
918639-08-4(Monohydrate Salt)