Methylene Blue (Aqueous) is supplied by Micromaster. It is available in the form of a blue coloured solution, which is clear without any particles. It is advisable to store this product below 30°C in tightly closed container and away from bright light.

• Quantity provided: 500ml/bottle

Methylene Blue (aqueous) is used for capsule staining and simple staining. Methylene Blue was earlier recognized as a good nuclear stain, the staining solutions are always either aged or alkalized, if not both. More importantly it is an excellent stain for ribonucleic acid, which is the important stainable constituent of bacterial bodies, of lymphocyte and hemoprotoal cytoplasm, and of nerve cell tigroid granules. Capsules are composed of mucoid polysaccharides of polypeptides. These are detected by capsule staining. The capsule stain is a differential stain used to detect cells capable of producing an extra cellular capsule. The capsule stain begins as a negative stain. Cells are spread in a film of the acidic stain and are not heat-fixed. Heat-fixing causes shrinkage of the cells, leaving an artefactual white halo around them that might be falsely interpreted as a capsule.