Skip to Content
Merck
All Photos(3)

Key Documents

More Documents

P7884

Sigma-Aldrich

Pyrocatechol Violet

suitable for indicator

Synonym(s):

Catechol violet, Pyrocatecholsulfonphthalein

Sign Into View Organizational & Contract Pricing
All Photos(3)

About This Item

Empirical Formula (Hill Notation):
C19H14O7S
CAS Number:
115-41-3
Molecular Weight:
386.38
Beilstein:
353938
EC Number:
204-088-3
MDL number:
MFCD00005868
UNSPSC Code:
12171500
PubChem Substance ID:
24898883
NACRES:
NA.47

form

powder

Quality Level

200

technique(s)

titration: suitable

mp

185 °C (dec.) (lit.)

solubility

water: 1 mg/mL

suitability

suitable for indicator

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

SMILES string

Oc1ccc(cc1O)C(=C2\C=CC(=O)C(O)=C2)\c3ccccc3S(O)(=O)=O

InChI

1S/C19H14O7S/c20-14-7-5-11(9-16(14)22)19(12-6-8-15(21)17(23)10-12)13-3-1-2-4-18(13)27(24,25)26/h1-10,20,22-23H,(H,24,25,26)/b19-12+

InChI key

HGPSVOAVAYJEIJ-XDHOZWIPSA-N

Looking for similar products? Visit Product Comparison Guide

Related Categories

General description

Pyrocatechol Violet (PV) is a sulfone phthalein dye. It chelates metal ions. The metal-PV complex is bluish-violet in color.

Application

Complexometric indicator
Pyrocatechol Violet has been used in the formation of dye-metal complexes. It has also been used to determine Cu2+ chelating activity.

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H315 - H319

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2

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’.

Already Own This Product?

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

Visit the Document Library

Jing Su et al.
The Analyst, 135(11), 2918-2923 (2010-09-30)
A novel strategy for the determination of oxalate anions was successfully established using a copper ion and pyrocatechol violet (PV) ensemble. The sensor ensemble can discriminate oxalate over other common anions including F(-), Cl(-), I(-), Br(-), HPO(4)(2-), PO(4)(3-), AcO(-), CO(3)(2-)
A K Flaten et al.
The Science of the total environment, 207(1), 21-28 (1997-12-16)
Aluminium-organic species in tea infusions were studied by size exclusion chromatography, using a Superose 12 HR column, a mobile phase of 0.12 mol l-1 tris(hydroxymethyl)aminomethane adjusted to pH 5.5 and detection by UV-visible spectrophotometry. Aluminium was detected after post-column reaction
Berrin Buke et al.
Journal of hazardous materials, 163(2-3), 1298-1302 (2008-09-03)
An on-line solid phase extraction method for the preconcentration and determination of Cu(II) by flame atomic absorption spectrometry (FAAS) has been described. It is based on the adsorption of copper(II) ion onto a home made mini column of Chromosorb 105
Qingling Xu et al.
Chemical communications (Cambridge, England), 47(46), 12497-12499 (2011-10-25)
In this study, the ensemble of pyrocatechol violet and Sn(4+) was used for dopamine detection in a neutral aqueous solution with high selectivity and sensitivity. The detection course showed three color changes, which could be observed by the naked eye.
Colorimetric assay for ?-lactamase activity using cocktail of penicillin and 4-(2-pyridylazo)resorcinol (PAR)?2Hg2+ complex
Suji Lee
Dyes and Pigments, 137 (2017)
View All Related Papers

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