Pyrocatechol violet
: Catechol violet, Pyrocatecholsulfonphthalein
: Pyrocatechol Violet is a complexometric indicator dye. This phthalein dye chelates metals to form blue to blue-violet complexs. It is also a pH indicator with a transition interval from 0 - 8 (red to violet). It is known to be unstable when alkaline. The stability is improved at a neutral pH. When the pH is between 2-7 the color may be yellow.
: P 2767 (OTTO) Pyrocatechol violet Cas 115-41-3 - used in a rapid and sensitive method for tin.
Properties
: Purple to dark purple to violet
Safety Information
WGK Germany 3
PubChem CID: 40467765
MDL Number: MFCD00005868
EC Number: 204-088-3
Beilstein Registry: 353938
SMILES: C1=CC=C(C(=C1)/C(=C/2\C=CC(=O)C(=C2)O)/C3=CC(=C(C=C3)O)O)S(=O)(=O)O
| Packings | Price (INR) |
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1 gm
|
1170.00
|
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5 gm
|
4905.00
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25 gm
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POR
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1 kg
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POR
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