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Merck

95290

Methyl Blue

suitable for microscopy

Synonym(s):

Acid blue 93, Aniline blue water soluble, Cotton blue, Poirriers blue, Water blue

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About This Item

Empirical Formula (Hill Notation):
C37H27N3Na2O9S3
CAS Number:
28983-56-4
Molecular Weight:
799.80
UNSPSC Code:
12171500
NACRES:
MA.02
PubChem Substance ID:
329770433
EC Number:
249-352-9
Colour Index Number:
42780
MDL number:
MFCD00058509

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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

InChI key

MCPLVIGCWWTHFH-UHFFFAOYSA-L

SMILES string

[Na+].[Na+].OS(=O)(=O)c1ccc(Nc2ccc(cc2)\C(c3ccc(Nc4ccc(cc4)S([O-])(=O)=O)cc3)=C5/C=CC(\C=C5)=N/c6ccc(cc6)S([O-])(=O)=O)cc1

form

powder or crystals

technique(s)

microbe id | staining: suitable

pH

9.4-14

solubility

water: 0.01 g/10 mL, blue to very deep blue

εmax

≥200 at 310-320 nm, ≥400 at 595-605 nm

suitability

suitable for microscopy

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

Quality Level

200

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General description

Methyl Blue (C.l. 42780) is a triaminotriphenylmethane dye with each amino group carrying a monosulfonated phenyl substituent. It is also known as Water blue, Acid blue 93, Cotton blue, Poirriers blue, and Aniline blue water soluble.

Application

Methyl Blue has been used:
  • to stain leaf disks for callose visualization within the cells
  • to incubate cells for 4′,6-diamidino-2-phenylindole (DAPI)/septa staining
  • as a marker for β-(1-3)-d-glucans or acidic phloroglucinol for the detection of callose and lignin
  • in Mann′s stain as it involves a methyl blue-eosin mixture

Storage Class

11 - Combustible Solids

wgk

WGK 2

flash_point_f

>572.0 °F - Pensky-Martens closed cup

flash_point_c

> 300 °C - Pensky-Martens closed cup

ppe

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
BCCP2732
BCCK8203
BCCB9353
BCBV2236
BCBR0621V

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Ja-An Annie Ho et al.
Analytical and bioanalytical chemistry, 391(2), 479-485 (2008-02-15)
Salmonellae are ubiquitous human pathogens, which pose a danger to the elderly and children. Due to the increased number of outbreaks of human illness associated with the consumption of contaminated products in the USA and many other countries, there is
C Sahoo et al.
Journal of hazardous materials, 215-216, 302-310 (2012-03-21)
Photocatalytic degradation of methyl blue (MYB) was studied using Ag(+) doped TiO(2) under UV irradiation in a batch reactor. Catalytic dose, initial concentration of dye and pH of the reaction mixture were found to influence the degradation process most. The
A Arunarani et al.
Colloids and surfaces. B, Biointerfaces, 102, 379-384 (2012-09-27)
Basic Violet 3 and Acid Blue 93 are the most important group of synthetic colourants extensively used in textile industries for dyeing cotton, wool, silk and nylon. Release of these dye pollutants in to the environment adversely affects the human
Christos Haritoglou et al.
Retina (Philadelphia, Pa.), 29(9), 1266-1273 (2009-11-26)
The purpose of this study was to investigate the biocompatibility of aniline and methyl blue in a well-established cell culture model and assess the staining properties of these dyes at the level of the internal limiting membrane (ILM) in human
Lijun Dong et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 66(4-5), 1317-1322 (2007-02-06)
A novel flow injection method with resonance light scattering detection was developed for the determination of total protein concentrations. This method is based on the enhancement of RLS signals from Methyl Blue (MB) by protein. The enhanced RLS intensities at
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