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Merck
CN

94820

Variamine blue B salt

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
UNSPSC Code:
12352200
NACRES:
NA.25
PubChem Substance ID:
57653642
EC Number:
202-967-6
Colour Index Number:
37255
MDL number:
MFCD00031684

Key Documents

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InChI key

AAXAHUUIRLOQMB-UHFFFAOYSA-M

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

SMILES string

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

form

powder

suitability

suitable for microscopy

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

signalword

Danger

hcodes

H301,H318

Hazard Classifications

Acute Tox. 3 Oral - Eye Dam. 1

Storage Class

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

wgk

WGK 3

ppe

Eyeshields, Gloves, type N95 (US)

Regulatory Information

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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
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
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
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

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