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P7884

Sigma-Aldrich

Pyrocatechol Violet

Powder

Synonym(s):

Catechol violet, Pyrocatecholsulfonphthalein

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About This Item

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

product name

Pyrocatechol Violet, suitable for indicator

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

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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

signalword

Warning

hcodes

H315,H319

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

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’.

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Lei Zhu et al.
Journal of the American Chemical Society, 127(12), 4260-4269 (2005-03-24)
Enantioselective association events between boronic acid receptors and bifunctional substrates such as alpha-hydroxycarboxylates and vicinal diols were exploited to develop enantioselective indicator-displacement assays. It was found that the sensitivity of the assay could be tuned by using either colorimetric or
Colorimetric assay for ?-lactamase activity using cocktail of penicillin and 4-(2-pyridylazo)resorcinol (PAR)?2Hg2+ complex
Suji Lee
Dyes and Pigments, 137 (2017)
Yan Wang
Colloids and surfaces. B, Biointerfaces, 88(2), 614-621 (2011-08-23)
A sensitive and selective electrochemical method was developed for simultaneous determination of uric acid (UA), xanthine (XA) and hypoxanthine (HX) based on a poly (pyrocatechol violet)/carboxyl functionalized multi-walled carbon nanotubes composite film modified electrode. The preparation and basic electrochemical performance
Marina Fidelis et al.
Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association, 142, 111439-111439 (2020-05-26)
The aim of this study was to evaluate the effects of different solvents and maximize the extraction of bioactive compounds from jabuticaba (Myrciaria cauliflora) seeds. In general, the solvent system composed of water and propanone (52:48 v/v) modified the extract
Thu Hang Nguyen et al.
Antioxidants (Basel, Switzerland), 9(3) (2020-02-29)
Oxidative stress and inflammation are commonly present in many chronic diseases. These responses are closely related to pathophysiological processes. The inflammatory process can induce oxidative stress and vice versa through the activation of multiple pathways. Therefore, agents with antioxidant and/or
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