P7884
Pyrocatechol Violet
Powder
Synonym(s):
Catechol violet, Pyrocatecholsulfonphthalein
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About This Item
Empirical Formula (Hill Notation):
C19H14O7S
CAS Number:
Molecular Weight:
386.38
NACRES:
NA.47
PubChem Substance ID:
UNSPSC Code:
12171500
EC Number:
204-088-3
MDL number:
Beilstein/REAXYS Number:
353938
Product Name
Pyrocatechol Violet, suitable for indicator
form
powder
Quality Level
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
signalword
Warning
hcodes
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
Eyeshields, Gloves, type N95 (US)
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