CAS 7220-79-3|Methylene Blue trihydrate

Introduction:Basic information about CAS 7220-79-3|Methylene Blue trihydrate, including its chemical name, molecular formula, synonyms, physicochemical properties, and safety information, etc.
Common NameMethylene Blue trihydrate
CAS Number7220-79-3Molecular Weight373.898
Density0.98 g/mL at 25 °CBoiling Point/
Molecular FormulaC16H24ClN3O3SMelting Point190 °C (dec.)(lit.)
MSDS/Flash Point14 °C
Symbol
GHS02, GHS07
Signal WordDanger

Names

NameMethylene Blue trihydrate
SynonymMore Synonyms

Methylene Blue trihydrate BiologicalActivity

DescriptionMethylene blue trihydrate (C.I. Basic Blue 9 trihydrate) is a guanylyl cyclase (sGC), monoamine oxidase A (MAO-A) and NO synthase (NOS) inhibitor. Methylene blue trihydrate is a vasopressor and is often used as a dye in several medical procedures. Methylene blue trihydrate has antinociception, antimalarial, antidepressant and anxiolytic activity effects. Methylene Blue trihydrate has the potential for methemoglobinemias, neurodegenerative disorders and ifosfamide-induced encephalopathytreatment[1][2][3].
Related CatalogResearch Areas >>CancerResearch Areas >>InfectionSignaling Pathways >>Immunology/Inflammation >>NO SynthaseSignaling Pathways >>Neuronal Signaling >>Monoamine OxidaseResearch Areas >>Neurological DiseaseSignaling Pathways >>GPCR/G Protein >>Guanylate Cyclase
Target

Guanylyl cyclase (sGC)[1]. Monoamine oxidase A (MAO-A)[1]. NO synthase (NOS)[1]

In VitroBy acting as an alternative electron acceptor/donor Methylene blue restores mitochondrial function, improves neuronal energy production and inhibits the formation of superoxide[1]. Methylene blue inhibits cytochrome P450 (CYP) isozymes. Methylene blue is an odorless, water soluble, dark blue-green crystalline powder, which turns blue whenever mixed in solution. Methylene blue is a vasopressor that impacts the NO synthetic pathway by inhibiting inducible NOS and inhibiting the subsequent activation of sGC. In addition, by binding to the iron heme moiety of sGC and causing enzyme inhibition, Methylene blue blocks accumulation of cyclic GMP (cGMP), competing directly with NO in its ability to activate soluble guanylyl cyclase[3].
In VivoMethylene Blue (1, 5, and 25 μg/rat) significantly decreases sevoflurane minimum alveolar anesthetic concentration (MAC) and brain cyclic guanosine monophosphate (cGMP) content in a dose-dependent manner in male Sprague-Dawley rats (7-week-old, 200-250 g)[2]. Methylene blue is used as a dye in chromoendoscopy, and is sprayed onto the mucosa of the gastrointestinal tract in order to identify dysplasia, or pre-cancerous lesions[2]. Methylene blue is able to restore vascular tone, normalize mean arterial pressures (MAP), and reduce vasopressor usage[3].
References

[1]. Delport A, et al. Methylene blue and its analogues as antidepressant compounds. Metab Brain Dis. 2017 Oct;32(5):1357-1382.

[2]. Masaki E, et al. Methylene blue, a soluble guanylyl cyclase inhibitor, reduces the sevoflurane minimum alveolar anesthetic concentration and decreases the brain cyclic guanosine monophosphate content in rats. Anesth Analg. 1999 Aug;89(2):484-9.

[3]. McCartney SL, et al. Intraoperative vasoplegia: methylene blue to the rescue! Curr Opin Anaesthesiol. 2018 Feb;31(1):43-49.

Chemical & Physical Properties

Density0.98 g/mL at 25 °C
Melting Point190 °C (dec.)(lit.)
Molecular FormulaC16H24ClN3O3S
Molecular Weight373.898
Flash Point14 °C
Exact Mass373.122681
PSA75.07000
InChIKeyXQAXGZLFSSPBMK-UHFFFAOYSA-M
SMILESCN(C)c1ccc2nc3ccc(=[N+](C)C)cc-3sc2c1.O.O.O.[Cl-]
Storage conditionStore at RT.
StabilityStable. Incompatible with bases, reducing agents, strong oxidizing agents.
Water Solubility4 g/100 mL

Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
SP5740000
CHEMICAL NAME :
Phenothiazin-5-ium, 3,7-bis(dimethylamino)-, chloride, trihydrate
CAS REGISTRY NUMBER :
7220-79-3
LAST UPDATED :
199712
DATA ITEMS CITED :
2
MOLECULAR FORMULA :
C16-H18-N3-S.Cl.3H2-O
MOLECULAR WEIGHT :
373.94

Safety Information

Symbol
GHS02, GHS07
Signal WordDanger
Hazard StatementsH225-H319
Precautionary StatementsP210-P280-P305 + P351 + P338-P337 + P313-P403 + P235
Personal Protective EquipmentEyeshields;Faceshields;full-face respirator (US);Gloves;multi-purpose combination respirator cartridge (US);type ABEK (EN14387) respirator filter
Hazard CodesXn:Harmful;
Risk PhrasesR22
Safety PhrasesS26-S36-S24/25-S16-S7
RIDADRUN 1170 3/PG 2
WGK Germany3
RTECSSP5740000
Hazard Class6.1

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Synonyms

Phenothiazinium, 3,7-bis(dimethylamino)-, chloride, hydrate (1:1:3)
BASIC BLUE 9 HYDRATE
METHYLENE BLUE TS
Methylene Blue trihy
MFCD00150008
EINECS 200-515-2
3,7-Bis(dimethylamino)phenothiazin-5-ium chloride hydrate (1:1:3)
3,7-bis(dimethylamino)phenothiazin-5-ium chloride hydrate(1:1:3)
METHYLENE BLUE HYDRATE
Methylene Blue
3,7-bis(dimethylamino)phenazathionium chloride trihydrate
Methylene Blue BB
3,7-Bis(dimethylamino)phenothiazin-5-ium chloride trihydrate
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