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M4159

Sigma-Aldrich

Methylene Blue hydrate

suitable for nucleic acid staining, BioReagent

Synonym(s):

3,7-Bis(dimethylamino)phenothiazin-5-ium chloride xhydrate, Methylene Blue monohydrate, Methylene blue, Nucleic acid staining reagent

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About This Item

Empirical Formula (Hill Notation):
C16H18ClN3S · xH2O
CAS Number:
Molecular Weight:
319.85 (anhydrous basis)
Beilstein:
3599847
EC Number:
MDL number:
UNSPSC Code:
12352200
PubChem Substance ID:
NACRES:
NA.52

grade

for molecular biology

Quality Level

product line

BioReagent

form

powder

technique(s)

nucleic acid detection: suitable

solubility

water: 1 mg/mL (dark blue)

suitability

suitable for nucleic acid staining

storage temp.

room temp

SMILES string

O.[Cl-].CN(C)c1ccc2N=C3C=C\C(C=C3Sc2c1)=[N+](/C)C

InChI

1S/C16H18N3S.ClH.H2O/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;1H2/q+1;;/p-1

InChI key

WQVSELLRAGBDLX-UHFFFAOYSA-M

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General description

Methylene blue is a heterocyclic aromatic chemical, appearing as a dark green solid powder, changing to blue in aqueous solution. It is used as a stain in many different histology procedures, as well as in molecular biology laboratories.

Application

Methylene Blue hydrate is suitable for use as a nucleic acid stain for agarose and polyacrylamide gel electrophoresis (PAGE). It was used to stain 4T1 tumor cells to study metastasis of tumor cells using clonogenic assay. Methylene blue hydrate crystals were encapsulated in apoferritin nanocages for photodynamic therapy against tumor cells.

Features and Benefits

  • Less hazardous than staining with ethidium bromide
  • Viewable in visible light
  • Fast and easy to use

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Hazard Classifications

Acute Tox. 4 Oral

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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