A new monoclinic polymorph of methyl p‐amino­benzoate

Single crystals of methyl‐p‐amino­benzoate (MAB), C₈H₉NO₂, were obtained during the synthesis of 4‐amino‐N′‐(5‐nitro‐2‐thienylmethylene)benzohydrazide. A P2₁/c polymorph a = 8.5969 (4) Å, b = 5.6053 (2) Å, c = 15.5397 (7) Å and β = 96.172 (2)°] of MAB was found and the intra‐ and intermolecular geometries were compared with those of the pre­viously known C2/c structure a = 16.242 (2) Å, b = 8.113 (2) Å, c = 12.724 (2) Å and β = 69.17 (1)°; Xianti (1983). Jiegou Huaxue, 2 , 219–221].