5-Chloro-2-methyl­sulfanyl-6-(naphtha­len-1-yl­oxy)-1H-benzimidazole methanol monosolvate

In the title compound, C₁₈H₁₃ClN₂OS·CH₃OH, the dihedral angle between the benzimidazole group and the naphth­yloxy moiety [82.89 (5)°] very near to orthogonality. The H atom in the five-membered ring is disordered with equal occupancies at the two N atoms and the H atom of the methano­lic hy­droxy group is disordered with equal occupancies over two sites at the O atom. The methanol mol­ecule acts as a hydrogen-bond acceptor for the amino H atom and donates a hydrogen bond to the nonprotonated ring N atom. As a result, chains are formed running along the a axis.