Methylene Blue trihydrate - Biological Stain, Purifed, ≥90%(HPLC) , CAS No.7220-79-3

CAS: 7220-79-3 Cat. No.: M102717 Summenformel: C16H18ClN3S·3H2O Molekulargewicht: 373.9 Beilstein Registry Number: 3599847 EG-Nummer: 615-731-6
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GRADE & PURITY Biological Stain ? Biological stain grade — dyes characterized for staining cells and tissues. Use in histology and microscopy where staining consistency matters. Purifed ? Purified grade — refined to remove major impurities for cleaner results. Use when crude material would introduce unwanted interference. ≥90%(HPLC)
Synonyms
[7-(dimethylamino)phenothiazin-3-ylidene]-dimethylazanium;chloride;trihydrate | METHYLENE BLUE [IARC] | Methylene blue (USP) | methylthioninium chloride trihydrate | Basic Blue 9 trihydrate | DTXSID0025600 | AKOS005167162 | E76384 | C16H18ClN3S | METHYLTH
Storage
Room temperature
Shipped In
Normal
★
Size
Deutschland (EU)
USA*
Price
Qty
1g
M102717-1g
—
9 Auf Lager
8,59€
5g
M102717-5g
—
Auf Lager ≥10
9,46€
25g
M102717-25g
—
Auf Lager ≥10
20,74€
100g
M102717-100g
—
9 Auf Lager
69,33€
500g
M102717-500g
1 Auf Lager
1 Auf Lager
294,94€
Enter a quantity for the sizes you want to add.
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Why this grade

Biological Stain, Purifed, ≥90%(HPLC) Biological Stain,Purifed for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Room temperature Ships Normal Check lot-specific COA for exact specifications.

📋

Quality documents

SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.

📚

Literature proof

Cited in 1414 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Übersicht

Methylene Blue acts as a GCS (guanylyl cyclase) inhibitor, biological stain and redox indicator. Methylene Blue inhibits tau filament formation. Additionally, Methylene Blue is also reported to inhibit NOSs (nitric oxide synthase). Methylene Blue is widely used to inhibit cGMP-mediated processes. Methylene Blue has been observed to dose-dependently induce cytotoxicity in U-373 MG human astrocytoma and SK-N-MC human neuroblastoma cells. Furthermore Methylene Blue is reported to bind to the M2 subtype of muscarinic receptors in rat cardiac myocytes, and thus exhibit antimuscarinic effects on IK, ACh and ICa. Methylene Blue has also been reported to inhibit endothelium-dependent relaxation of isolated blood vessels.
An inhibitor of cGMP-mediated processes and guanylyl cyclase, a useful stain, and a redox indicator

Specifications

Synonyme
[7-(dimethylamino)phenothiazin-3-ylidene]-dimethylazanium;chloride;trihydrate | METHYLENE BLUE [IARC] | Methylene blue (USP) | methylthioninium chloride trihydrate | Basic Blue 9 trihydrate | DTXSID0025600 | AKOS005167162 | E76384 | C16H18ClN3S | METHYLTH
Spezifikationen & Reinheit
Biological Stain, Purifed, ≥90%(HPLC)
Storage
Room temperature
Verschickt in
Normal
Note
Biological Stain, Purifed
Aktionsart
INHIBITOR
Reinheit
≥90%(HPLC)
Namen und Kennungen
Pubchem Sid
Pubchem Sid Url
https://pubchem.ncbi.nlm.nih.gov/substance/488187373
Kanonisches Lächeln
CN(C)C1=CC2=C(C=C1)N=C3C=CC(=[N+](C)C)C=C3S2.O.O.O.[Cl-]
IUPAC Name
[7-(dimethylamino)phenothiazin-3-ylidene]-dimethylazanium;chloride;trihydrate
InChIKey
XQAXGZLFSSPBMK-UHFFFAOYSA-M
INCHI
1S/C16H18N3S.ClH.3H2O/c1-18(2)11-5-7-13-15(9-11)20-16-10-12(19(3)4)6-8-14(16)17-13;;;;/h5-10H,1-4H3;1H;3*1H2/q+1;;;;/p-1
Isomere SMILES
CN(C)C1=CC2=C(C=C1)N=C3C=CC(=[N+](C)C)C=C3S2.O.O.O.[Cl-]
WGK Deutschland
2
Molekulargewicht
373.9
Beilstein
3599847
Reaxy-Rn
16692608
Reaxys-RN_link_address
https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=16692608&ln=

Documentation

📋 Safety Data Sheet (SDS)

Comprehensive hazard, handling, storage, and regulatory compliance document.

Download SDS →

✅ Certificate of Analysis (COA)

Lot-specific quality data. Enter your lot number to retrieve the exact COA.

Look up COA →

📊 Datasheet

Quick-reference summary of product specifications and applications.

View datasheet →

🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

View spec sheet →

Advanced Data

Taxonomic Classification

Taxonomy Tree

KingdomOrganic compounds
SuperclassOrganoheterocyclic compounds
KlasseBenzothiazines
SubclassNot available
Intermediate Tree Nodes Not available
Direct ParentBenzothiazines
Alternative Parents Dialkylarylamines  Benzenoids  Secondary ketimines  Heteroaromatic compounds  Azacyclic compounds  Organopnictogen compounds  Organic oxides  Organic chloride salts  Hydrocarbon derivatives  
Molecular FrameworkAromatic heteropolycyclic compounds
Substituents Benzothiazine - Tertiary aliphatic/aromatic amine - Dialkylarylamine - Benzenoid - Secondary ketimine - Heteroaromatic compound - Tertiary amine - Azacycle - Organic chloride salt - Organic oxide - Organic salt - Organopnictogen compound - Organic oxygen compound - Amine - Organonitrogen compound - Organic nitrogen compound - Hydrocarbon derivative - Aromatic heteropolycyclic compound
BeschreibungThis compound belongs to the class of organic compounds known as benzothiazines. These are organic compounds containing a benzene fused to a thiazine ring (a six-membered ring with four carbon atoms, one nitrogen atom and one sulfur atom).
External Descriptors Not available
3D-Struktur
Interaktives chemisches Strukturmodell





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Wirkungsmechanismen
Zertifikate (CoA, COO, BSE/TSE und Analyse-Diagramm)
C of A & Other Certificates(BSE/TSE, COO):
Analytical Chart:

Find and download the COA for your product by matching the lot number on the packaging.

32 results found

Lot NumberCertificate TypeDatumArtikel
F2622314Certificate of AnalysisJun 08, 2026 M102717
F2622313Certificate of AnalysisJun 08, 2026 M102717
F2622311Certificate of AnalysisJun 08, 2026 M102717
F2622310Certificate of AnalysisJun 08, 2026 M102717
E2614051Certificate of AnalysisJun 01, 2026 M102717
D23211398Certificate of AnalysisFeb 04, 2026 M102717
D23211055Certificate of AnalysisFeb 04, 2026 M102717
D23211056Certificate of AnalysisFeb 04, 2026 M102717
D23211413Certificate of AnalysisFeb 04, 2026 M102717
D23211335Certificate of AnalysisFeb 04, 2026 M102717
K2521168Certificate of AnalysisDec 02, 2025 M102717
D2628037Certificate of AnalysisSep 11, 2025 M102717
I2528417Certificate of AnalysisSep 11, 2025 M102717
I2528416Certificate of AnalysisSep 11, 2025 M102717
I2528415Certificate of AnalysisSep 11, 2025 M102717
I2528412Certificate of AnalysisSep 11, 2025 M102717
I2224447Certificate of AnalysisJul 10, 2025 M102717
I2224448Certificate of AnalysisJul 10, 2025 M102717
B2527462Certificate of AnalysisFeb 11, 2025 M102717
B2527463Certificate of AnalysisFeb 11, 2025 M102717
C2507716Certificate of AnalysisFeb 11, 2025 M102717
B2527461Certificate of AnalysisFeb 11, 2025 M102717
J2431405Certificate of AnalysisOct 19, 2024 M102717
K2124175Certificate of AnalysisSep 13, 2024 M102717
K2124180Certificate of AnalysisSep 13, 2024 M102717
K2124181Certificate of AnalysisSep 13, 2024 M102717
G2110313Certificate of AnalysisApr 07, 2024 M102717
C2112287Certificate of AnalysisDec 15, 2023 M102717
C2112288Certificate of AnalysisDec 15, 2023 M102717
D23211117Certificate of AnalysisFeb 03, 2023 M102717
I2224445Certificate of AnalysisJul 01, 2022 M102717
I2224446Certificate of AnalysisJul 01, 2022 M102717
Chemische und physikalische Eigenschaften
LöslichkeitSoluble in water (50 mg/ml), ethanol (70 mg/ml), alcohol, and chloroform. Insoluble in ether.
Schmelzpunkt (°C)235°C
Molekulargewicht373.900 g/mol
XLogP3
Hydrogen Bond Donor Count3
Hydrogen Bond Acceptor Count7
Rotatable Bond Count1
Exact Mass373.123 Da
Monoisotopic Mass373.123 Da
Topological Polar Surface Area46.900 Ų
Heavy Atom Count24
Formal Charge0
Complexity483.000
Isotope Atom Count0
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
The total count of all stereochemical bonds0
Covalently-Bonded Unit Count5
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