10-(1,2,2-Trichloro­vin­yl)-10H-pheno­thia­zine 5,5-dioxide

The title compound, C(14)H(8)Cl(3)NO(2)S, forms a dimeric structure by inter-molecular Cl⋯O=S inter-actions. The dimers make a two-dimensional array parallel to (101) by other Cl⋯O=S inter-actions. The two-dimensional network is found to be kept unchanged, although the trichloro-vinyl group is disordered (relative occupancies 0.65:0.35).