Identification | Back Directory | [Name]
Methylene Blue | [CAS]
61-73-4 | [Synonyms]
CI 52015 S NO 1038 SWISS BLUE Chromosmon Nsc 617593 CI NO 52015 D&CBLUENO.1 BASIC BLUE 9 Schultz 1038 Urolene Blue METHYLENE BLUE MethyleneBlueGr CI BASIC BLUE 9 External Blue 1 Maxilon Blue Sg Conbasic Blue N Methylene Blue A Methylene Blue D Methylene Blue G Methylene Blue Gz Methylene Blue Mb Methylene Blue Nf Methylene Blue Nz Methylene Blue Sg Methylene Blue Sp Methylene Blue Zx Methylene Blue Bd Methylene Blue Bp Methylene Blue Bz Methylene Blue FZ METHYLENE BLUE 2B CALCOZINE BLUE ZF METHYLENE BLUE ZF METHYLENE BLUE BX Methylene Blue Bpc Methylene Blue Bba Methylene Blue 2bf Methylene Blue 2bn Methylene Blue 2bp Methylene Blue Hgg Methylene Blue Iad Methylene Blue Jfa Tetramethylthionine Methylene Blue p.a. Methylene Blue  SANDOCRYL BLUE B-RL METHYLENE BLUE STAIN METHYLENE BLUE-ALPHA abcolmethyleneblue2b METHYLENE BLUE 3 H2O Leather pure blue hb Methylenium Ceruleum Mitsui Methylene Blue METHYLENE BLUE POWDER METHYLENE BLUE: 98.5% EHRLICH'S REAGENT III NEISSER'S SOLUTION IA METHYLENE BLUE REAGENT DNA-DYE METHYLENE BLUE BORON 1,000PPM FOR ICP Ext D And C Blue No. 1 Basovict Methylene Blue Duasyn Basic Blue IAD01 METHYLENEBLUE,ANHYDROUS METHYLENE BLUE SOLUTION METHYLTHIONINE CHLORIDE METHYLTHIONINI CHLORIDUM NEISSER'S METHYLENE BLUE METHYLENE BLUE, CHLORIDE METHYLENE BLUE INDICATOR METHYLENE BLUE, LOEFFLER Basicblue9=Methyleneblue Ravi Methylene Blue Z.F. FUCHSIN BASIC MICROSCOPY MethylthioniniuM choride Methylene Blue, HARLECO? Yamamoto Methylene Blue B METHYLENE BLUE POLYCHROME METHYLENE BLUE LOEFFLER'S LOEFFLER'S METHYLENE BLUE METHYLTHIONINIUM CHLORIDE METHYLENE BLUE, ZINC-FREE abcolmethyleneblue2bznfree Yamamoto Methylene Blue Zf Methylene blue (CI x 52015) Dycosbasic Methylene Blue BB TETRAMETHYLTHIONINE CHLORIDE Methylene Blue,pure,certified Basic Blue 9,METHYLENE BLUE BB METHYLENE BLUE, CHLORIDE, KOCH METHYLENE BLUE, LOEFFER FORMULA Methylene Blue, certified, pure Methylene Blue 2B, Basic blue 9 Hidaco methylene blue salt free LISTERIA ENRICHMENT SUPLEM. 24ML METHYLENE BLUE, LOEFFLER FORMULA METHYLENE BLUE ALKALINE LOEFFLER VISIBLELIGHT-EXCITEDMETHYLENEBLUE METHYLENE BLUE ACCORDING TO EHRLICH METHYLENE BLUE ACCORDING TO LOFFLER Methylene Blue, certified, pure 25GR Methylene blue, C.I. 52015, extra pure METHYLENE BLUE POLYCRHOME (MCFADYEN'S) METHYLENE BLUE SOLUTION 0.05% SOLUTION METHYLENE BLUE SOLUTION, 0.5% IN WATER METHYLENE BLUE TABLETS FOR MILK TESTING METHYLENE BLUE, 1% W V AQUEOUS SOLUTION Methylene Blue, for biological staining METHYLENE BLUE (C.I. 52015) FOR MICROSCO METHYLENE BLUE (C.I. 52015) REAG. PH EUR Methylene Blue solution, 1% w/v in water 3,7-BIS(DIMETHYLAMINO)PHENAZATHIONIUMHCL METHYLENE BLUE 0.05 WT. % SOLUTION & METHYLENE BLUE WATER AND ALCOHOL SOLUBLE METHYLENE BLUE STAIN SOLUTION, LOEFFLER'S METHYLTHIONINIUM CHLORIDE(METHYLENE BLUE) METHYLENE BLUE TECHNICAL GRADE C.I. 52015 Methylene blue, C.I. 52015, for microscopy Methylene Blue Chloride (Certifiable Stain) Methylene Blue – potassium hydroxide solution METHYLENE BLUE SOLUTION ACCORDING TO LOEFFLER METHYLENE BLUE, 0.05 WT. % SOLUTION IN W ATER 3,7-BIS(DIMETHYLAMINO)PHENAZATHIONIUM CHLORIDE METHYLENE BLUE, 100X DNA STAIN ULTRA PURE GRADE Methylene blue, carbol solution, for microscopy lǒffler's alkaline methylene blue stain solution 3,7-BIS(DIMETHYLAMINO)-5-PHENOTHIAZINIUM CHLORIDE Loeffler’s alkaline methylene blue stain solution METHYLENE BLUE SOLUTION ALKALINE ACC. TO LOEFFLER Ehrlichs reagent III, Loefflers Methylene Blue methylene blue solution alkaline according to lǒffler Phenothiazin-5-ium, 3,7-bis(dimethylamino)-, chloride METHYLENE BLUE TRIHYDRATE HIGH PURITY BIOLOGICAL STAIN [Ion association reagent for spectrophotoMetric analysis] Phenothiazin-5-iuM,3,7-bis(diMethylaMino)-, chloride (1:1) METHYLENE BLUE CONCENTRATE ACC. TO EHR-L ICH, F. MICROSCOPY Methylene Blue solution alkaline according to Loeffler METHYLENE BLUE SOLUTION ACCORDING TO LOE FFLER FOR MICROSCOPY Methylene Blue Solution (Methanol Solution)[for Cell Staining] 3,7-Bis(dimethylamino)-5-phenothiazinium Chloride
Basic Blue 9 METHYLENE BLUE POLYCHROME (MCFADYEN'S) 1% AQUEOUS STAINING SOLUTION Methylene Blue [Ion association reagent for spectrophotometric analysis] METHYLENE BLUE CONCENTRATED, WATERY,ACCO RDING, TO EHRLICH FOR MICROSCOPY METHYLENE BLUE CERTIFIED (C.I. 52015) FOR STAINING AND REAGENT FOR SPECTROSCOPY USE Methylene Blue, An ethidium bromide alternative for the visualization of nucleic acids in gels Loefflers alkaline methylene blue stain solution, Methylene Blue - potassium hydroxide solution METHYLENE BLUE INDICATOR, HIGH PURITY BIOGICAL STAIN, SPECTROPHOTOMETRIC ANALYSIS & MICROBIOLOGY GRADE 98.5%, C.I.NO 52015 | [EINECS(EC#)]
200-515-2 | [Molecular Formula]
C16H18ClN3S | [MDL Number]
MFCD00012111 | [MOL File]
61-73-4.mol | [Molecular Weight]
319.85 |
Chemical Properties | Back Directory | [Appearance]
green fine crystalline powder | [Melting point ]
190 °C (dec.)(lit.)
| [density ]
1.0 g/mL at 20 °C
| [refractive index ]
n20/D1.347 | [Fp ]
45 °C | [storage temp. ]
Store at RT | [solubility ]
Soluble in water, ethanol, ethylene glycol, methyl cellosolve | [Colour Index ]
52015 | [form ]
Liquid | [pka]
2.6, 11.2(at 25℃) | [color ]
Green | [Specific Gravity]
0.98 | [Odor]
Odorless | [Water Solubility ]
40 g/L (20 ºC) | [λmax]
661 nm | [Merck ]
14,6060 | [BRN ]
3641570 | [Biological Applications]
Detecting microorganisms; treating diabetic retinopathy,macular degeneration,malignant uveal melanomas,erysipelas,hidradenitis suppurativa,inflammation,skin diseases | [NIST Chemistry Reference]
Methylene blue(61-73-4) | [EPA Substance Registry System]
Phenothiazin-5-ium, 3,7-bis(dimethylamino)-, chloride(61-73-4) |
Hazard Information | Back Directory | [Chemical Properties]
green fine crystalline powder | [Uses]
A useful inhibitor of cGMP-mediated processes and a useful stain | [Definition]
ChEBI: 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. | [Hazard]
Toxic by ingestion. | [Biological Activity]
Biological stain and redox indicator. Inhibits tau filament formation (IC 50 = 1.9 μ M). Also inhibits soluble guanylyl cyclase. | [Preparation]
MethyleneBlue45,C.I. 52 015 [61-73-4], is obtained by oxidation of 4-aminodimethylaniline in the presence ofsodium thiosulfate to give the quinonediiminothiosulfonic acid, reaction with dimethylaniline, oxidation to the indamine, and cyclization to give the thiazine. | [General Description]
Methylene blue, also known as methylthioninium chloride, is a photoactive phenothiazine dye. It is a small molecular weight dye, which is effective against Gram positive and Gram negative bacteria. | [Biochem/physiol Actions]
Methylene blue (MB) is a highly recognized histological dye. It plays a vital role in microbiology and pharmacology. It has been employed in staining living organisms and in methemoglobinemia treatment. MB exhibits maximum absorption at 664nm. Exposure to methylene blue leads to various health hazards such as increased heart rate, vomiting, shock, Heinz body formation, cyanosis, jaundice, quadriplegia and tissue necrosis in humans | [Clinical Use]
Methylene blue is 3,7-bis(dimethylamino)-phenazathioniumchloride (Urised). The compound occurs as a dark greencrystalline powder with a metallic appearance that is solublein water (1:25) and alcohol (1:65). Methylene blue has weak antiseptic properties that makeit useful for the treatment of cystitis and urethritis. The actionof methylene blue is considered to be bacteriostatic.The compound colors the urine and stool blue green. | [Safety Profile]
Poison by ingestion,intraperitoneal, intravenous, and subcutaneous routes.Human systemic effects: cyanosis, blood changes.Experimental reproductive effects. Mutation datareported. When heated to decomposition it emits verytoxic fumes of NOx, SOx, and | [Veterinary Drugs and Treatments]
Methylene blue is used primarily for treating methemoglobinemia
secondary to oxidative agents (nitrates, chlorates) in ruminants. It
is also employed occasionally as adjunctive or alternative
therapy
for cyanide toxicity.
Intra-operative methylene blue is also being used to preferentially
stain islet-cell tumors of the pancreas
in dogs in order to aid in
their surgical removal or in determining the animal’s prognosis. | [storage]
Store at -20°C | [Purification Methods]
Crystallise the chloride from 0.1M 664 2HCl (16mL/g), the crystals are separated by centrifugation, washed with chilled EtOH and diethyl ether, and dried under vacuum. Crystallise it from 50% aqueous EtOH, wash it with absolute EtOH, and dry it at 50-55o for 24hours. It has also been crystallised from *benzene/MeOH (3:1). It has been salted out with NaCl from a commercial concentrated aqueous solution, then crystallised from water, and dried at 100o in an oven for 8-10hours. [Beilstein 27 III/IV 5152.] |
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