Acta Cryst. (2002). E58, o708-o709  [ doi:10.1107/S1600536802009674 ]

Monoclinic form of ethyl 4-aminobenzoate (benzocaine)

D. E. Lynch and I. McClenaghan

Abstract: The structure of the title compound, C₉H₁₁NO₂, (I), comprises a flat molecule arranged, head-to-tail, in linear ribbon arrays via a N-HO=C association. These ribbons end-on form a herring-bone structure interconnected via N-HN association. The structure was first determined in 1987 [Sinha & Pattabhi (1987). Proc. Indian Acad. Sci. Chem. Sci. 98, 229-234] in the orthorhombic space group P2₁2₁2₁, with R = 0.120, whereas similar cell dimensions and an increased angle in the present study resulted in monoclinic space group P2₁/c, with R = 0.065.

Online 8 June 2002

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