The molecule is built on a pyridine ring (six-membered aromatic ring with a nitrogen at position 1). Substituents are described using standard pyridine numbering (N = 1, numbered clockwise):
- C-2: A piperidine ring (six-membered saturated ring with one nitrogen atom), attached through its nitrogen atom.
- C-3: A chloro substituent (-Cl).
- C-5: A trifluoromethyl group (-CF3).

From the piperidine ring attached at C-2:
- At the para position relative to its ring nitrogen, there is a carbonyl group (C=O).
- This carbonyl carbon is bonded to the nitrogen of a second piperidine ring.

From the second piperidine ring:
- At the ortho position to its nitrogen, the ring bears a substituted carbon atom.
- This carbon carries a hydroxyl group (-OH) and is also double-bonded to a nitrogen atom (-C(OH)=N-), forming a carboximidic acid fragment.