Definition: A compound consisting of dark green crystals or crystalline powder, having a bronze-like luster. Solutions in water or alcohol have a deep blue color. Methylene blue is used as a bacteriologic stain and as an indicator. It inhibits GUANYLATE CYCLASE, and has been used to treat cyanide poisoning and to lower levels of METHEMOGLOBIN.
Other names Swiss Blue; Methylthionine Chloride; N, Methylene Blue; Blue, Swiss; Blue, Methylene; Blue N, Methylene; Urolene Blue; Methylthioninium Chloride; Methylene Blue N; Chromosmon