Methylene Blue, methylthionine chloride or 3,7-bis(dimethylamino)phenothiazin-5-ium chloride is a chemical compound used as a dye and medication for Gram's stain, Wright stain[?], and the treatment of metoxyhemoglobinemia.
... intention of proposing to Kitty. He first meets Stiva who encourages him in this plan, but, later that evening, Kitty rejects him in the expectation that Vronsky is about ...