Date published: 2025-10-19

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Pyrocatechol Violet (CAS 115-41-3)

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Alternate Names:
Catechol violet; Pyrocatecholsulfonphthalein
Application:
Pyrocatechol Violet is a complexometric indicator
CAS Number:
115-41-3
Molecular Weight:
386.38
Molecular Formula:
C19H14O7S
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data.

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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.

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

Pyrocatechol Violet, 5 g

sc-215764
5 g
$56.00

Pyrocatechol Violet, 10 g

sc-215764A
10 g
$97.00