Molekula

Catechol Violet (Pyrocatechol Violet)- SNA

SKU 90038262 CAS 115-41-3 C19H14O7S MW 386.38 Available on enquiry

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ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Certificate of Analysis with every batch

Catechol Violet (Pyrocatechol Violet) is a synthetic organic dye and pH indicator, widely used in analytical chemistry for titrations, complexometric assays, and as a visual indicator in acid-base reactions due to its distinct color changes. It appears as a dark green to black powder, soluble in water and alcohol; it is red in strongly acidic solution, turns yellow above about pH 1.5–2, and changes from yellow to violet near neutral pH (about pH 6–7). CAS 115-41-3, molecular formula C19H14O7S with a molecular weight of 386.38 g/mol. Stable at ambient conditions with no signal word required. Molekula supplies Catechol Violet from research to bulk quantities with full documentation and ISO 9001:2015 traceability.

This substance is available from Molekula on enquiry. Full specification, Safety Data Sheet and Certificate of Analysis documentation are provided with your quotation once our team confirms the grade and pack size you need.

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Overview

SKU: 90038262
CAS Number: 115-41-3
IUPAC Name: 4-[3-(3,4-dihydroxyphenyl)-1,1-dioxo-2,1lambda6-benzoxathiol-3-yl]benzene-1,2-diol
EC Number: 204-088-3
Molecular Formula: C19H14O7S
Molecular Weight: 386.38
Exact Mass: 386.046
SMILES: C1=CC=C2C(=C1)C(OS2(=O)=O)(C3=CC(=C(C=C3)O)O)C4=CC(=C(C=C4)O)O
InChIKey: RRRCKIRSVQAAAS-UHFFFAOYSA-N
InChI: 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)26-19/h1-10,20-23H
PubChem CID: 66993

Synonyms

1,2-Benzenediol, 4,4'-(1,1-dioxido-3H-2,1-benzoxathiol-3-ylidene)bis-
3,3-bis(3,4-dihydroxyphenyl)-3H-benzo[c][1,2]oxathiole 1,1-dioxide
4,4'-(1,1-Dioxido-3H-2,1-benzoxathiol-3-ylidene)bis[1,2-benzenediol]
Catechol violet
Catechol violet indicator
PKF
Pyrocatechinsulfonephthalein
Pyrocatechol violet
Pyrocatecholsulfonphthalein
starbld0016674

See the other grade of CAS 115-41-3 →

Frequently asked questions

What is Catechol Violet (Pyrocatechol Violet) used for?

Catechol Violet is primarily used as a pH indicator in analytical chemistry. It is red in strongly acidic solution, turns yellow above about pH 1.5–2, and changes from yellow to violet near neutral pH (about pH 6–7). It is also employed in some biochemical assays and as a stain in microscopy.

What is the chemical formula and molecular weight of Catechol Violet?

The chemical formula is C19H14O7S, and the molecular weight is 386.38 g/mol.

How should Catechol Violet be stored?

Store Catechol Violet at ambient temperature in a tightly sealed container, away from moisture and direct sunlight.

What grades or purities of Catechol Violet does Molekula supply?

Molekula supplies analytical grade Catechol Violet, suitable for laboratory and research applications requiring high purity.

Can Molekula supply Catechol Violet in bulk quantities?

Yes, Molekula can provide Catechol Violet in bulk quantities upon request, subject to availability and order specifications.

What documentation comes with an order of Catechol Violet?

Each order includes a Certificate of Analysis (CoA), Material Safety Data Sheet (MSDS), and batch-specific documentation for traceability.

Related products

Molekula has supplied fine chemicals and biochemicals since 2000 from ISO 9001:2015 and ISO 14001:2015 certified facilities. Every dispatched batch is logged with a batch number and matched to a Certificate of Analysis, and Safety Data Sheets are available in five languages.