Toluidine blue

Name: Toluidine blue
Brand: Vaqora Chemicals
SKU: VQ-000726

About Toluidine blue

Listed under CAS 92-31-9, Toluidine blue is a biological stain available from Vaqora Chemicals in Microscopy grade. With the molecular formula C15H16ClN3S, it has a molar mass of 305.8 g/mol. The IUPAC name is (7-amino-8-methylphenothiazin-3-ylidene)-dimethylazanium chloride. Common synonyms include Basic Blue 17 and Blutene chloride.

The product is provided as a powder. Keep the container tightly sealed and store it in a cool, dry area. Good laboratory practice and suitable PPE are recommended during handling.

Typical applications include histology and cytology staining, microscopy, clinical laboratories and biological staining. Typical end-use sectors are academic and industrial research, diagnostics and biotechnology and textiles and dyeing.

Vaqora Chemicals supplies Toluidine blue in 25 g, 100 g, 1 kg and 25 kg packs, each shipped with a Certificate of Analysis (COA), and exports worldwide.

Typical applications

Histology & cytology staining
Microscopy
Clinical laboratories
Biological staining

Industries

Specifications & identifiers

Chemical identifiers
Product name	Toluidine blue
Catalogue No.	VQ-000726
CAS Number	92-31-9
IUPAC name	(7-amino-8-methylphenothiazin-3-ylidene)-dimethylazanium chloride
Molecular formula	C₁₅H₁₆ClN₃S
Molecular weight	305.8 g/mol
Exact mass	305.0753
Grade	Microscopy
HSN code	32049000
InChIKey	GEDVVYWLPUPJJZ-UHFFFAOYSA-N
SMILES	CC1=CC2=C(C=C1N)SC3=CC(=[N+](C)C)C=CC3=N2.[Cl-]
PubChem CID	7083

Physical properties
Physical form	Powder
Appearance	Powder
H-bond donors / acceptors	1 / 4
TPSA	66.7 Å²
Synonyms	Basic Blue 17, Blutene chloride, Methylene Blue T50 or T extra, TBO, Tolonium chloride, Toluidine Blue O, Menodin, Gabilin, C.I. Basic Blue 17, Toluidine Blue OO, Toloni chloridum, F Klot

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Other grades of CAS 92-31-9

Toluidine blue solution

CAS: 92-31-9
Formula: C₁₅H₁₆ClN₃S
MW: 305.8 g/mol

VQ-003649

Frequently asked questions

What is the CAS number of Toluidine blue?

The CAS Registry Number of Toluidine blue is 92-31-9. It is also known as Basic Blue 17, Blutene chloride, Methylene Blue T50 or T extra.

What is the molecular formula and molecular weight of Toluidine blue?

Toluidine blue has the molecular formula C15H16ClN3S and a molecular weight of 305.8 g/mol. Its IUPAC name is (7-amino-8-methylphenothiazin-3-ylidene)-dimethylazanium chloride.

Which grade and pack sizes of Toluidine blue can I order?

We supply Toluidine blue in Microscopy grade, in 25 g, 100 g, 1 kg, 25 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Toluidine blue?

Yes. Every lot of Toluidine blue is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Toluidine blue be shipped internationally?

Yes. We export Toluidine blue worldwide by air and sea freight or express courier, on EXW, FOB, CIF, CFR or DAP Incoterms, with full export documentation.