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94820

Sigma-Aldrich

Variamine blue B salt

for microscopy (Hist.)

Synonym(s):

4-Amino-4′-methoxydiphenylamine-diazonium chloride, Diazo-4-amino-4′-methoxy-diphenylamine

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About This Item

Empirical Formula (Hill Notation):
C13H12ClN3O
CAS Number:
101-69-9
Molecular Weight:
261.71
Colour Index Number:
37255
EC Number:
202-967-6
MDL number:
MFCD00031684
UNSPSC Code:
12352200
PubChem Substance ID:
57653642
NACRES:
NA.25

grade

for microscopy (Hist.)

form

powder

SMILES string

[Cl-].COc1ccc(Nc2ccc(cc2)[N+]#N)cc1

InChI

1S/C13H12N3O.ClH/c1-17-13-8-6-11(7-9-13)15-10-2-4-12(16-14)5-3-10;/h2-9,15H,1H3;1H/q+1;/p-1

InChI key

AAXAHUUIRLOQMB-UHFFFAOYSA-M

Application

Variamine blue B salt is a chromogenic reagent/substrate used for assays that require the detection an oxidizing component.

Pictograms

Skull and crossbonesCorrosion
GHS06,GHS05

Signal Word

Danger

Hazard Statements

H301,H318

Hazard Classifications

Acute Tox. 3 Oral - Eye Dam. 1

WGK

WGK 3

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

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K Basavaiah et al.
Farmaco (Societa chimica italiana : 1989), 58(4), 285-292 (2003-05-03)
Four simple, selective, accurate and reproducible procedures are described for the assay of methdilazine in bulk form and in formulations. One titrimetric and three spectrophotometric methods are based on the oxidation of the drug with potassium iodate, and determination of
Demetrius G Themelis et al.
Talanta, 72(1), 277-281 (2007-04-15)
A highly selective and simple flow injection method is reported for the determination of Au(III) in jewel samples. The method is based on the catalytic effect of Au(III) on the oxidation of 4-amino-4'-methoxydiphenylamine hydrochloride (Variamine Blue B base, VB) by
H D Revanasiddappa et al.
Analytical sciences : the international journal of the Japan Society for Analytical Chemistry, 17(11), 1309-1312 (2002-01-05)
A rapid and sensitive spectrophotometric method is described for the determination of trace amounts of selenium using Variamine Blue (VB) as a chromogenic reagent. The proposed method is based on the reaction of selenium with potassium iodide in an acidic
Elmorsy Khaled et al.
Talanta, 83(5), 1538-1543 (2011-01-18)
Four sensitive catalytic potentiometric methods have been developed for trace levels determination of iodide based on its catalytic effects on the oxidation of four dyes: viz. variamine blue (VB), rhodamine B (RB), methylene blue (MB) and malachite green (MG), with

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