CHEMICAL AND PHYSICAL PROPERTIES
| Physical Description | Dark green crystals or powder with a bronze-like luster; Solutions in water or alcohol are deep blue; [ChemIDplus] |
|---|---|
| Color/Form | Dark green crystals or powder from chloroform-ethyl ether |
| Odor | Slight odor |
| Melting Point | 100 to 110 °C (with decomposition) |
| Solubility | In water, 43,600 mg/L at 25 °C. |
| Vapor Pressure | 0.00000013 [mmHg] |
| Stability/Shelf Life | Stable under recommended storage conditions. |
| Decomposition | When heated to decomposition it emits very toxic fumes of /nitrogen oxides, sulfur oxides and chloride/. |
| Other Experimental Properties | Dark green crystals or crystalline powder with bronze luster. Odorless; stable in air. Absorption max: 668, 609 nm. Soluble in water and chloroform; sparingly soluble in alcohol. Deep blue solution in water or alcohol. Forms double salts. /Methylene blue trihydrate/ |
| Chemical Classes | Dyes -> Azine Dyes |
COMPUTED DESCRIPTORS
| Molecular Weight | 319.9 g/mol |
|---|---|
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 4 |
| Rotatable Bond Count | 1 |
| Exact Mass | 319.0909965 g/mol |
| Monoisotopic Mass | 319.0909965 g/mol |
| Topological Polar Surface Area | 43.9 Ų |
| Heavy Atom Count | 21 |
| Formal Charge | 0 |
| Complexity | 483 |
| Isotope Atom Count | 0 |
| Defined Atom Stereocenter Count | 0 |
| Undefined Atom Stereocenter Count | 0 |
| Defined Bond Stereocenter Count | 0 |
| Undefined Bond Stereocenter Count | 0 |
| Covalently-Bonded Unit Count | 2 |
| Compound Is Canonicalized | Yes |
PRODUCT INTRODUCTION
description
Methylene blue is an organic chloride salt having 3,7-bis(dimethylamino)phenothiazin-5-ium as the counterion. A commonly used dye that also exhibits antioxidant, antimalarial, antidepressant and cardioprotective properties. It has a role as an EC 1.4.3.4 (monoamine oxidase) inhibitor, an acid-base indicator, a fluorochrome, an antidepressant, a cardioprotective agent, an EC 3.1.1.8 (cholinesterase) inhibitor, a histological dye, an EC 4.6.1.2 (guanylate cyclase) inhibitor, an antioxidant, an antimicrobial agent, a neuroprotective agent, a physical tracer and an antimalarial. It contains a 3,7-bis(dimethylamino)phenothiazin-5-ium.