Acta Cryst. (2006). E62, o4969-o4971 [ doi:10.1107/S1600536806041808 ]
Abstract: The two independent molecules in the asymmetric unit of the title compound, C11H11NO3, show similar conformations. In both molecules, there is an intramolecular O-HO hydrogen bond and the ethoxycarbonyl substituent is almost coplanar with the indole ring system. C-HO and C-H interactions link the molecules into a ladder-like structure along the b axis.
Online 13 October 2006
Copyright © International Union of Crystallography