CAS 122965-43-9|METHYLENE BLUE

Introduction:Basic information about CAS 122965-43-9|METHYLENE BLUE, including its chemical name, molecular formula, synonyms, physicochemical properties, and safety information, etc.
Common NameMETHYLENE BLUE
CAS Number122965-43-9Molecular Weight337.86800
Density0.6600g/mlBoiling Point/
Molecular FormulaC16H20ClN3OSMelting Point190ºC
MSDSChineseUSAFlash Point/
Symbol
GHS07
Signal WordWarning

Names

Namemethylene blue
SynonymMore Synonyms

METHYLENE BLUE BiologicalActivity

DescriptionMethylene blue (Basic Blue 9) hydrate is a guanylyl cyclase (sGC), monoamine oxidase A (MAO-A) and NO synthase (NOS) inhibitor. Methylene blue is a vasopressor and is often used as a dye in several medical procedures. Methylene blue hydrate through the nitric oxide syntase/guanylate cyclase signalling pathway to reduce prepulse inhibition. Methylene blue hydrate is a REDOX cycling compound and able to cross the blood-brain barrier. Methylene blue hydrate is a Tau aggregation inhibitor. Methylene blue hydrate reduces cerebral edema, attenuated microglial activation and reduced neuroinflammation[1][2][3].
Related CatalogResearch Areas >>CancerResearch Areas >>InfectionSignaling Pathways >>Cell Cycle/DNA Damage >>Microtubule/TubulinSignaling Pathways >>Immunology/Inflammation >>NO SynthaseSignaling Pathways >>Neuronal Signaling >>Monoamine OxidaseResearch Areas >>Inflammation/ImmunologySignaling Pathways >>Cytoskeleton >>Microtubule/TubulinSignaling Pathways >>GPCR/G Protein >>Guanylate Cyclase
In VitroMethylene blue (Basic Blue 9) hydrate (4.5 μM; BV2 microglia) alters the immune profile of LPS-activated BV2 microglia and decreased the level of CD14, IL-1β, TNF-α, and CCL2 mRNA[3].
In VivoMethylene blue (Basic Blue 9) hydrate (50 and 100 mg/kg; i.p.; once, for 25 min; male NMRI mice) reduces absent prepulse inhibition[1]. Methylene blue (Basic Blue 9) hydrate (20 and 40 mg/kg; p.o.; daily, for 6 months; CaMKIIα-tTA transactivator mice) preserves cognition in mice expressing full-length pro-aggregant human Tau[2]. Methylene blue (Basic Blue 9) hydrate (2 mg/kg; i.v.; once, for 1 d; TBI-treated male BALB/c mice) reduces TBI-induced edema and neuroinflammation and reduces acute depression-like behavior[3]. Methylene blue (Basic Blue 9) hydrate (2 mg/kg; i.v.; once, for 1 d; TBI-treated male BALB/c mice) reduces the percentage of inflammatory factor[3]. Animal Model: Male NMRI mice[1] Dosage: 50 and 100 mg/kg Administration: Intraperitoneal injection; once, for 25 minutes Result: Reduced the prepulse inhibition and reduced the increase in locomotor activity caused by phencyclidine (PCP). Animal Model: CaMKIIα-tTA transactivator mice[2] Dosage: 20 and 40 mg/kg Administration: Oral administration; daily, for 6 months Result: Inhibited Tau aggregation in CaMKIIα-tTA transactivator mice. Animal Model: TBI-treated male BALB/c mice[3] Dosage: 2 mg/kg Administration: Intravenous injection; once, for 1 day Result: Decreased the level of CD14, IL-1β, TNF-α, and CCL2 mRNA. Animal Model: TBI-treated male BALB/c mice[3] Dosage: 2 mg/kg Administration: Intravenous injection; once, for 1 day Result: Reduced the percentage of myeloid (CD11b+/GR1+) cells, reduced IL-1β and enhanced IL-10 expression in microglia.
References

[1]. Klamer D, et, al. Phencyclidine-induced behaviour in mice prevented by methylene blue. Basic Clin Pharmacol Toxicol. 2004 Feb;94(2):65-72.

[2]. Hochgräfe K, et, al. Preventive methylene blue treatment preserves cognition in mice expressing full-length pro-aggregant human Tau. Acta Neuropathol Commun. 2015 May 10;3:25.

[3]. Fenn AM, et, al. Methylene blue attenuates traumatic brain injury-associated neuroinflammation and acute depressive-like behavior in mice. J Neurotrauma. 2015 Jan 15;32(2):127-38.

Chemical & Physical Properties

Density0.6600g/ml
Melting Point190ºC
Molecular FormulaC16H20ClN3OS
Molecular Weight337.86800
Exact Mass337.10200
PSA56.61000
Appearance of CharactersFine Crystalline Powder | Green
Storage conditionroom temp
Water SolubilityH2O: soluble4mg/4ml | Soluble in water, alcohol, acetic acid, glycerol and chloroform. Insoluble in ether.

Safety Information

Symbol
GHS07
Signal WordWarning
Hazard StatementsH302
Precautionary StatementsP301 + P312 + P330
Personal Protective Equipmentdust mask type N95 (US);Eyeshields;Gloves
Hazard CodesXn:Harmful
Risk PhrasesR22
Safety Phrases26-39-61
RIDADRUN 2811 6.1/PG 3
WGK Germany3
RTECSSO5600000

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Synonyms

Methylene Blue hydrate,high purity biological stain
MFCD00150006
Methylene Blue,high purity
Methylene Blue
MethyleneblueHydrat
Methylene Blue hydrate
Methylthioninium chloride
EINECS 200-515-2
Methylene Blue hydrate,Methylthionini chloridum
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