The complete molecule of the title compound, C10H4Cl6N2, is generated by crystallographic twofold symmetry, with Ice Buckets two C atoms lying on the rotation axis; the 1,8-naphthyridine ring is almost planar with an r.m.s.
deviation of 0.0002 Å.In the crystal structure, the molecules are stacked in an antiparallel manner along [001].
Short Cl.Cl [3.3502 (4)] and Cl.
N [3.2004 (11)–3.2220 (10) Å] contacts are Plastic Plates observed in the crystal structure.