1,12-Bis-(N-naphthalamido)-4,9-bis-(2,4,6-trimethylbenzenesulfonyl)-4,9-diaza-dodecane 1 was obtained from 1,8-naphthalic anhydride on successive reactions with 3-aminopropanol, 4-methylbenzenesulfonyl chloride and 1,4-bis-(2,4,6-trimethylbenzenesulfonamido)butane. The molecular structure of 1 was investigated by X-ray crystallograehy, NMR, and mass spectrometry. The molecule crystallizes in the triclinic space group,
. The cell parameters are a 8.1548(12), b = 15.878(3), c = 18.005(3) Angstrom, alpha = 97.685(10), beta = 93.260(15), and gamma = 101.754(11)degrees. The asymmetric unit consists of the halves of two independent molecules, with Z = 2.