ACTA CRYSTALLOGRAPHICA SECTION C-CRYSTAL STRUCTURE COMMUNICATIONS, cilt.51, ss.139-141, 1995 (SCI-Expanded)
The X-ray structure determination of the title compound, C21H26N4O5S, shows that it crystallizes as the hydrazone tautomer and that the H atom of the hydrazone group and that of the CONH group both take part in intramolecular hydrogen bonding typical of this type of azo pigment.