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Methylene Blue trihydrate

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Methylene Blue trihydrate Basic information
Methylene Blue trihydrate Chemical Properties
  • Melting point:190 °C (dec.)(lit.)
  • Density 0.98 g/mL at 25 °C
  • Flash point:14 °C
  • storage temp. Store at RT.
  • solubility Soluble in water, chloroform; sparingly soluble in ethanol
  • form Solid
  • Colour Index  52015
  • pka2.6, 11.2(at 25℃)
  • color Green
  • Water Solubility 4 g/100 mL
  • λmax668 nm, 609 nm
  • Merck 13,6085
  • Stability:Stable. Incompatible with bases, reducing agents, strong oxidizing agents.
  • Biological ApplicationsDiagnosis of tauopathy,Alzheimer’s disease (AD),Pick’s disease; treating prophylaxis; dental materials
  • CAS DataBase Reference7220-79-3(CAS DataBase Reference)
  • IARC3 (Vol. 108) 2016
  • EPA Substance Registry SystemMethylene blue trihydrate (7220-79-3)
Safety Information
  • Hazard Codes Xn,F
  • Risk Statements 22-36/37/38-11
  • Safety Statements 26-36-24/25-16-7
  • RIDADR UN 1170 3/PG 2
  • WGK Germany 3
  • RTECS SP5740000
  • TSCA Yes
  • HS Code 32129000
Methylene Blue trihydrate Usage And Synthesis
  • Chemical PropertiesDark green crystalline powder
  • Usesantibacterial
  • UsesStain in bacteriology; reagent for several chemicals; as mixed indicator; as redox colorimetric agent. Targeting agent for melanoma.
  • General DescriptionOdorless or almost odorless dark green crystals with bronze luster or dark green crystalline powder. pH (1% solution in water) 3 to 4.5 .
  • Air & Water ReactionsHygroscopic. Water soluble. Gives a blue solution in water.
  • Reactivity ProfileMethylene Blue trihydrate is incompatible with strong oxidizing agents, caustics, alkali metal iodides and reducing agents. Also incompatible with dichromates. Methylene Blue trihydrate forms double salts with many inorganic salts. Is bleached reversibly by (zinc + hydrochloric acid) or sodium hydrosulfite. In aqueous solution, Methylene Blue trihydrate is decolorized by zinc dust and dilute sulfuric acid, but the color is restored upon exposure to air and more rapidly upon addition of ammonium hydroxide.
  • Fire HazardFlash point data for Methylene Blue trihydrate are not available; however, Methylene Blue trihydrate is probably combustible.
Methylene Blue trihydrate Preparation Products And Raw materials
Methylene Blue trihydrate(7220-79-3)Related Product Information
Methylene Blue trihydrateSupplierMore
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