61-73-4
Product Name:
Methylene Blue
Formula:
C16H18ClN3S
Synonyms:
Methylene blue;Methylthioninium chloride;Basic Blue 9;Methylene Blue hydrate;Methylene Blue solution
Inquiry
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] |
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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 |
SAFETY INFORMATION
Signal word | Warning |
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Pictogram(s) |
Exclamation Mark Irritant GHS07 |
GHS Hazard Statements |
H302:Acute toxicity,oral |
Precautionary Statement Codes |
P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P270:Do not eat, drink or smoke when using this product. P301+P312:IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. P501:Dispose of contents/container to..… |
COMPUTED DESCRIPTORS
Molecular Weight | 319.9 g/mol |
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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.