(2-{[1,1-Bis(hydroxy-meth-yl)-2-oxidoeth-yl]imino-meth-yl}-4-chloro-phenolato-κN,O,O')dibutyl-tin(IV).

The Schiff base ligand in the title compound, [Sn(C(4)H(9))(2)(C(11)H(12)ClNO(4))], chelates to the Sn atom through the two deprotonated O atoms, as well as through the N atom, to confer an overall cis-C(2)SnNO(2) trigonal-bipyramidal geometry at tin [C-Sn-C = 130.3†(1)°]. The hydr-oxy groups engage in O-H⋯O hydrogen bonding with the O atoms of adjacent mol-ecules, generating a chain running along the c axis.