In the title mol-ecule, C(11)H(11)ClO(3), the fused pyran ring adopts a half-chair conformation. In the crystal, inter-molecular O-H⋯O hydrogen bonds link mol-ecules into chains along [100]. These chains are inter-connected by weak inter-molecular C-H⋯O contacts which generate R(2) (2)(8) ring motifs, forming sheets parallel to (001). Tetra-gonal symmetry generates an equivalent motif along b. ...

In the title compound, C(34)H(18)Cl(2)F(6)O(6), one terminal trifluoro-methyl and one entire 2-chloro-4-(trifluoro-meth-yl)phenyl group are disordered with refined occupancy ratios of 0.715 (11):0.285 (11) and 0.517 (5):0.429 (5), respectively. In the crystal, weak inter-molecular C-H⋯O hydrogen bonds link the mol-ecules into ribbons propagating along the a-axis direction.

Mixed crystals of 1-(4-chlorophenylsulfonyl)-2,5-dimethyl-1 H -benzimidazole and 1-(4-chlorophenylsulfonyl)-2,6-dimethyl-1 (ratio 0.707:0.293; two molecules in the asymmetric unit), 0.707C 15 13 ClN 2 O S·0.293C S, ( I ), 2- n -butyl-1-(4- tert -butylphenylsulfonyl)-5-chloro-1 -butylphenylsulfonyl)-6-chloro-1 [ratio 0.731 (2):0.269 (2); one molecule unit], 0.731C 21 25 S·0.269C II were obtained...