Gabapentin-lactum-chloranilic acid (1/1).

In the title compound, C(9)H(15)NO·C(6)H(2)Cl(2)O(4) [sytematic name: 2-aza-spiro-[4.5]decan-3-one-chloranilic acid (1/1)], the cyclo-hexane ring of the lactam molecule adopts a slightly distorted normal chair conformation and the five-membered 3-aza-spiro ring is in a slightly distorted chair conformation. The dihedral angle between the least-squares planes of the cyclohexane and 3-azaspiro rings is 84.0 (3)°. In the crystal, the chloranilic acid mol-ecule and the gabapentin-lactum mol-ecules are held together by strong inter-molecular N-H⋯O and O-H⋯O hydrogen bonds with two bifurcated O acceptor atoms on the chloranilic acid mol-ecule and one on the gabapentin-lactum mol-ecule, each bonding with an inter- and intra-molecular hydrogen bond. The molecules are linked into chains parallel to (011) and propagating along the b axis.