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P7884

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
NACRES:
NA.47
PubChem Substance ID:
24898883
UNSPSC Code:
12171500
EC Number:
204-088-3
MDL number:
MFCD00005868
Beilstein/REAXYS Number:
353938
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Product Name

Pyrocatechol Violet, suitable for indicator

form

powder

Quality Segment

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

General description

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

Application

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

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Codes

H315,H319

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2

Storage Class

11 - Combustible Solids

WGK

WGK 3

Flash Point (°F)

Not applicable

Flash Point (°C)

Not applicable

PPE (personal protective equipment)

Eyeshields, Gloves, type N95 (US)

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