Skip to Content
Merck
All Photos(1)

Key Documents

89640

Sigma-Aldrich

Toluidine Blue

8.74% (ZN (THEORY)), for microscopy (Hist., Vit.)

Synonym(s):

Tolonium chloride; Basic Blue 17

Sign Into View Organizational & Contract Pricing


About This Item

Empirical Formula (Hill Notation):
C15H16ClN3S · 0.5ZnCl2
CAS Number:
Molecular Weight:
373.97
Colour Index Number:
52040
Beilstein:
4068052
MDL number:
UNSPSC Code:
12171500
PubChem Substance ID:
NACRES:
MA.02

grade

for microscopy (Hist., Vit.)

Quality Level

Assay

8.74% (ZN (THEORY))

form

powder or crystals

color

green to very dark green

solubility

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

εmax

≥800 at 621-636 nm in water

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

SMILES string

[Cl-].[Cl-].Cl[Zn]Cl.Cc1cc2N=C3C=CC(\C=C3Sc2cc1N)=[N+](\C)C.Cc4cc5N=C6C=CC(\C=C6Sc5cc4N)=[N+](\C)C

InChI

1S/2C15H15N3S.4ClH.Zn/c2*1-9-6-13-15(8-11(9)16)19-14-7-10(18(2)3)4-5-12(14)17-13;;;;;/h2*4-8,16H,1-3H3;4*1H;/q;;;;;;+2/p-2

InChI key

DAQXTSXITPUGRG-UHFFFAOYSA-L

General description

Toluidine blue (C.l. 52040) is a diaminothiazine dye.It is also known as TBO, tolonium chloride, and toluidine blue O.

Application

Toluidine Blue is suitable for use in the following applications:
  1. to demonstrate amyloid; DNA in plant material, mast cells, Nissl substance, nuclei, and sulfatides
  2. in metachromatic staining of sulfated mucins and related materials
  3. as staining agent to identify the development and accumulation of the cartilage matrix, proteoglycans for isolation and culture of mesenchymal stem cells from mouse compact bone.
  4. staining of mucins in water-miscible resins and of nucleic acids in epoxy resins(1)

Biochem/physiol Actions

Toluidine Blue is a basic thiazine metachromatic dye, which is used for selectively staining acidic tissue components such as carboxylates, sulfates, and phosphate radicals.It is found to have an affinity for nucleic acids and therefore binds to the nuclear material of tissues with a high DNA and RNA content.

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

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Newman Osafo et al.
The Turkish journal of gastroenterology : the official journal of Turkish Society of Gastroenterology, 30(8), 732-744 (2019-08-17)
Xylopic acid (XA) has been reported to exhibit analgesic activity, alleviate neuropathic pain in rodents, and demonstrate anti-inflammatory effects. Intrarectal challenge of rats with acetic acid induces colitis that bears resemblance in terms of its pathogenesis, histopathology, and inflammatory profile
Alessio Papini et al.
Plant science : an international journal of experimental plant biology, 286, 37-48 (2019-07-14)
In this work, a non-metallicolous and a metallicolous population of S. paradoxa were exposed to copper excess and fungal elicitation, and investigated for phytohormone production and cytological alterations. Under the stress applied separately and in combination, S. paradoxa plants varied
Yamuhanmode Alike et al.
Neural regeneration research, 14(12), 2173-2182 (2019-08-10)
The intermingling of regenerated nerve fibers inside nerve grafts is the main reason for mismatched nerve fibers. This is one of the key factors affecting limb function recovery after nerve injury. Previous research has shown that the accuracy of axon
Ulrike Kettenberger et al.
Journal of tissue engineering and regenerative medicine, 11(7), 1974-1985 (2015-11-10)
Locally applied bisphosphonates, such as zoledronate, have been shown in several studies to inhibit peri-implant bone resorption and recently to enhance peri-implant bone formation. Studies have also demonstrated positive effects of hydroxyapatite (HA) particles on peri-implant bone regeneration and an
Stephen H Schlecht et al.
Journal of orthopaedic research : official publication of the Orthopaedic Research Society, 37(9), 1910-1919 (2019-05-02)
Postnatal development and the physiological loading response of the anterior cruciate ligament (ACL) complex (ACL proper, entheses, and bony morphology) is not well understood. We tested whether the ACL-complex of two inbred mouse strains that collectively encompass the musculoskeletal variation

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service