Methylene blue is a heterocyclic aromatic chemical compound with molecular formula : C 16 H 18 Cl N 3 S . It has many uses in a range of different fields, such as biology and chemistry . At room temperature it appears as a solid, odorless, dark green powder, that yields a blue solution when dissolved in water . mehr

Methylene blue is a heterocyclic aromatic chemical compound with molecular formula : C 16 H 18 Cl N 3 S . It has many uses in a range of different fields, such as biology and chemistry . At room temperature it appears as a solid, odorless, dark green powder, that yields a blue solution when dissolved in water . The hydrated form has 3 molecules of water per molecule of MB. [ 1 ] Methylene blue should not be confused with methyl blue , another histology stain, new methylene blue , nor with the methyl violets often used as pH indicators . less