methylthioniniumklorid

Methylthioniniumklorid, commonly known as methylene blue chloride, is a chemical compound with the formula C16H18ClN3S. It is a salt derived from methylene blue, a phenothiazine dye. In its pure form, it appears as dark green or brown crystals or powder. It is soluble in water and alcohol.

Historically, methylthioniniumklorid has found applications in various fields. It was one of the first synthetic dyes discovered and was initially used for dyeing textiles. Its antiseptic properties were also recognized, leading to its use in some medical contexts. More recently, it has been investigated for its potential in treating certain neurological conditions, including Alzheimer's disease, due to its ability to act as a redox cycler and potentially mitigate oxidative stress. It has also been explored as a potential agent for methemoglobinemia.

The synthesis of methylthioniniumklorid typically involves the oxidation of dimethylaniline and sodium thiosulfate, followed by purification steps. It is important to handle this compound with care, as with any chemical substance, and follow appropriate safety guidelines. Its use in medical applications is subject to strict regulatory approval and is administered under medical supervision.