Methyl blue - AR , CAS No.28983-56-4

CAS: 28983-56-4 Cat. No.: M100199 Formula: C37H27N3Na2O9S3 Molecular Weight: 799.8 EC Number: 249-352-9
AVAILABLE TO ORDER
GRADE & PURITY AR ? Analytical Reagent grade — high-purity chemicals meeting strict assay limits for lab analysis. Use when accuracy matters and trace impurities could skew results.
Synonyms
Sodium 4-((4-((4-((4-sulfonatophenyl)amino)phenyl)(4-((4-sulfophenyl)amino)phenyl)methylene)cyclohexa-2,5-dien-1-ylidene)amino)benzenesulfonate | C.I. Acid Blue 93 | SY102209 | disodium 4-{[(4Z)-4-({4-[(4-sulfonatophenyl)amino]phenyl}({4-[(4-sulfophenyl)a
Storage
Desiccated
Shipped In
Normal
★
Size
USA
Germany (EU)*
Price
Qty
1g
M100199-1g
2 In stock
—
$10.90
5g
M100199-5g
2 In stock
—
$16.90
25g
M100199-25g
2 In stock
—
$46.90
Enter a quantity for the sizes you want to add.
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Why this grade

AR AR for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

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Storage & shipping

Desiccated Ships Normal Check lot-specific COA for exact specifications.

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Quality documents

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

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Literature proof

Cited in 358 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Overview

Methyl Blue is a histology dye commonly used to stain collagen blue in tissue sections. The compound has been determined useful as a vital dye for interocular observations. Methyl Blue has been incorporated in Sabouraud agar for the identification of Candida albicans strains. The compound has also been incorporated in other histology staining procedures such as Mallory’s connective tissue stain.
A histology stain for collagen in tissue sections

Specifications

Synonyms
Sodium 4-((4-((4-((4-sulfonatophenyl)amino)phenyl)(4-((4-sulfophenyl)amino)phenyl)methylene)cyclohexa-2,5-dien-1-ylidene)amino)benzenesulfonate | C.I. Acid Blue 93 | SY102209 | disodium 4-{[(4Z)-4-({4-[(4-sulfonatophenyl)amino]phenyl}({4-[(4-sulfophenyl)a
Specifications & Purity
AR
Biochemical and Physiological Mechanisms
Methyl Blue is considered as a xenobiotic compound and has antiseptic property. It is useful in polychrome staining. Methyl blue is mostly used for staining samples in histology and microbiology. It is also useful as a model to reveal the role of catalyst
Storage
Desiccated
Shipped In
Normal
Grade
AR
Note
Wherever possible, you should prepare and use solutions on the same day. However, if you need to make up stock solutions in advance, we recommend that you store the solution as aliquots in tightly sealed vials at -20°C. Generally, these will be useable for up to one month. Before use, and prior to opening the vial we recommend that you allow your product to equilibrate to room temperature for at least 1 hour. Need more advice on solubility, usage and handling? Please visit our frequently asked questions (FAQ) page for more details.
Names and Identifiers
Canonical Smiles
C1=CC(=NC2=CC=C(C=C2)S(=O)(=O)[O-])C=CC1=C(C3=CC=C(C=C3)NC4=CC=C(C=C4)S(=O)(=O)O)C5=CC=C(C=C5)NC6=CC=C(C=C6)S(=O)(=O)[O-].[Na+].[Na+]
IUPAC Name
disodium;4-[4-[[4-(4-sulfoanilino)phenyl]-[4-(4-sulfonatophenyl)iminocyclohexa-2,5-dien-1-ylidene]methyl]anilino]benzenesulfonate
InChIKey
MCPLVIGCWWTHFH-UHFFFAOYSA-L
INCHI
1S/C37H29N3O9S3.2Na/c41-50(42,43)34-19-13-31(14-20-34)38-28-7-1-25(2-8-28)37(26-3-9-29(10-4-26)39-32-15-21-35(22-16-32)51(44,45)46)27-5-11-30(12-6-27)40-33-17-23-36(24-18-33)52(47,48)49;;/h1-24,38-39H,(H,41,42,43)(H,44,45,46)(H,47,48,49);;/q;2*+1/p-2
Isomeric SMILES
C1=CC(=NC2=CC=C(C=C2)S(=O)(=O)[O-])C=CC1=C(C3=CC=C(C=C3)NC4=CC=C(C=C4)S(=O)(=O)O)C5=CC=C(C=C5)NC6=CC=C(C=C6)S(=O)(=O)[O-].[Na+].[Na+]
WGK Germany
3
Molecular Weight
799.8
Reaxy-Rn
11050090
Reaxys-RN_link_address
https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=11050090&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.

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📊 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
SuperclassBenzenoids
ClassBenzene and substituted derivatives
SubclassDiphenylmethanes
Intermediate Tree Nodes Not available
Direct ParentDiphenylmethanes
Alternative Parents Benzenesulfonic acids and derivatives  Benzenesulfonyl compounds  1-sulfo,2-unsubstituted aromatic compounds  Aniline and substituted anilines  Sulfonyls  Secondary ketimines  Organosulfonic acids  Azomethines  Secondary amines  Propargyl-type 1,3-dipolar organic compounds  Organopnictogen compounds  Organic sodium salts  Organic oxides  Hydrocarbon derivatives  Carbonyl compounds  
Molecular FrameworkAromatic homomonocyclic compounds
Substituents Diphenylmethane - Benzenesulfonate - Arylsulfonic acid or derivatives - Benzenesulfonyl group - 1-sulfo,2-unsubstituted aromatic compound - Aniline or substituted anilines - Azomethine - Secondary ketimine - Organic sulfonic acid or derivatives - Organosulfonic acid or derivatives - Organosulfonic acid - Sulfonyl - Secondary amine - Organic alkali metal salt - Organic 1,3-dipolar compound - Propargyl-type 1,3-dipolar organic compound - Hydrocarbon derivative - Organic oxide - Amine - Organosulfur compound - Organonitrogen compound - Organopnictogen compound - Carbonyl group - Organic sodium salt - Organic salt - Organic nitrogen compound - Organic oxygen compound - Aromatic homomonocyclic compound
DescriptionThis compound belongs to the class of organic compounds known as diphenylmethanes. These are compounds containing a diphenylmethane moiety, which consists of a methane wherein two hydrogen atoms are replaced by two phenyl groups.
External Descriptors organic sodium salt
3D Structure
Interactive Chemical Structure Model





Certificates(CoA,COO,BSE/TSE and Analysis Chart)
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.

7 results found

Lot NumberCertificate TypeDateItem
F2411071Certificate of AnalysisSep 18, 2023 M100199
J2318419Certificate of AnalysisSep 18, 2023 M100199
J2318467Certificate of AnalysisSep 18, 2023 M100199
J2318468Certificate of AnalysisSep 18, 2023 M100199
J2318469Certificate of AnalysisSep 18, 2023 M100199
J2318470Certificate of AnalysisSep 18, 2023 M100199
J2318471Certificate of AnalysisSep 18, 2023 M100199
Chemical and Physical Properties
SolubilitySoluble in water (1 mg/ml).
Molecular Weight799.800 g/mol
XLogP3
Hydrogen Bond Donor Count3
Hydrogen Bond Acceptor Count12
Rotatable Bond Count8
Exact Mass799.07 Da
Monoisotopic Mass799.07 Da
Topological Polar Surface Area230.000 Ų
Heavy Atom Count54
Formal Charge0
Complexity1620.000
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 Count3
Citations of This Product
Solution Calculators
Reviews

Customer Reviews

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