Methylene blue, also known as methylthioninium chloride, is a medication and dye. As a medication, it is mainly used to treat methemoglobinemia. Specifically, it is used to treat methemoglobin levels that are greater than 30% or in which there are symptoms despite oxygen therapy. It has previously been used for cyanide poisoning and urinary tract infections, but this use is no longer recommended.

Global methylene blue market was valued at 67.1 Million US$ in 2018 and is projected to reach 83.8 Million US$ by 2024, at a CAGR of 3.78% during the forecast period.

Methylene blue is mainly used for dyeing agent, medicine and chemical reagents, Key players in global Methylene blue market include: Macsen Laboratories, Tocris Bioscience, Ricca Chemical, Fisher Chemical, J.T.Baker, Sakshi Dyes & Chemicals, Vanshi Chemicals, Maikun Chemical, 3s Corporation, EMD Millipore, LabChem, MP Biomedicals, TCI America, Hach.