Methylene blue is used as a dye in different staining procedures viz. Wright's stain and Jenner's stain. It also serves as an indicator and medicine. Further, it is used to examine RNA and DNA under the microscope or in a gel. It is widely used as a redox indicator in analytical chemistry. It acts as a photosensitizer utilized to generate singlet oxygen in order to make organic peroxides by a Diels-Alder reaction. It is also used in the sulfide analysis. It plays an important role in aquaculture to treat fungal infections.
Chowdhury, P. R.; Bhattacharyya, K. G. Ni/Ti layered double hydroxide: synthesis, characterization and application as a photocatalyst for visible light degradation of aqueous methylene blue. Dalton Trans. 2015, 44 (15), 6809-6824.
Das, M.; Bhattacharyya, K. G. Use of Raw and Acid-Treated MnO2 as Catalysts for Oxidation of Dyes in Water: A Case Study with Aqueous Methylene Blue. Chem. Eng. Commun. 2014, 202 (12), 1657-1667.
Hazard Statements: H302
Harmful if swallowed.
Precautionary Statements: P264-P270-P301+P312a-P330-P501a
Wash thoroughly after handling. Do not eat, drink or smoke when using this product. IF SWALLOWED: Call a POISON CENTER/doctor if you feel unwell. Rinse mouth. Dispose of contents/container in accordance with local/regional/national/international regulations.