Crystal structure of 4-(benzo[d]thia-zol-2-yl)-1,2-dimethyl-1H-pyrazol-3(2H)-one.

Abstract

In the title compound, C12H11N3OS, the inter-planar angle between the pyrazole and benzo-thia-zole rings is 3.31 (7)°. In the three-dimensional mol-ecular packing, the carbonyl oxygen acts as acceptor to four C-H donors (with one H⋯O as short as 2.25 Å), while one methyl hydrogen is part of the three-centre system H⋯(S, O). A double layer structure parallel to (01) can be recognized as a subsection of the packing.