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
138786-67-1 (sel de sodium)
Alternate CAS Number
102625-70-7 (base libre) ; 164579-32-2 (sesquihydrate) ; 1022083-88-0 (sel hémimagnésien)
CAS Number
169905-10-6 (base)
Alternate CAS Number
72830-09-2 (sel HCl)
CAS Number
1007912-86-8(BASE)
Alternate CAS Number
1007871-86-4(Na Salt);NA(Ca Salt)
CAS Number
1715120-13-0(BASE)
Alternate CAS Number
1714147-47-3(Ca Salt);1714147-50-8(Na Salt)