PYROCATECHOLSULFONEPHTHALEIN

Modify Date: 2026-07-05 15:06:39

PYROCATECHOLSULFONEPHTHALEIN Structure
PYROCATECHOLSULFONEPHTHALEIN structure
Common Name PYROCATECHOLSULFONEPHTHALEIN
CAS Number 115-41-3 Molecular Weight 386.375
Density 1.6±0.1 g/cm3 Boiling Point 659.5±55.0 °C at 760 mmHg
Molecular Formula C19H14O7S Melting Point 185 °C (dec.)(lit.)
MSDS Chinese USA Flash Point 352.7±31.5 °C

 Names

This table lists Chinese names, IUPAC names and various aliases of this chemical substance.

Name Pyrocatechol Violet
Synonym More Synonyms

 Chemical & Physical Properties

This table shows physicochemical parameters including melting point, boiling point, density, solubility and optical rotation. Missing data is marked as N/A.

Density 1.6±0.1 g/cm3
Boiling Point 659.5±55.0 °C at 760 mmHg
Melting Point 185 °C (dec.)(lit.)
Molecular Formula C19H14O7S
Molecular Weight 386.375
Flash Point 352.7±31.5 °C
Exact Mass 386.046021
PSA 132.67000
LogP 1.82
Vapour Pressure 0.0±2.1 mmHg at 25°C
Index of Refraction 1.740
InChIKey RRRCKIRSVQAAAS-UHFFFAOYSA-N
SMILES O=S1(=O)OC(c2ccc(O)c(O)c2)(c2ccc(O)c(O)c2)c2ccccc21
Stability Stable. Incompatible with strong oxidizing agents.
Water Solubility H2O: 1 mg/mL, clear, red

 MSDS

This table provides MSDS information including hazard classification, first‑aid, fire‑fighting, spill handling, operation and storage instructions.

 Safety Information

This table covers safety warnings, protective measures, incompatible substances and disposal guidelines for this compound.

Personal Protective Equipment Eyeshields;Gloves;type N95 (US);type P1 (EN143) respirator filter
Hazard Codes Xn
Risk Phrases R36/37/38
Safety Phrases S24/25
RIDADR NONH for all modes of transport
WGK Germany 3
HS Code 32041900

 Synthetic Route

This table presents publicly reported synthetic routes, reaction conditions, reactants and product information of the compound.

~%

PYROCATECHOLSULFONEPHTHALEIN Structure

PYROCATECHOLSUL...

CAS#:115-41-3

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Literature: Collection of Czechoslovak Chemical Communications, , vol. 19, p. 925,928 Chemicke Listy, , vol. 48, p. 552,554

~28%

PYROCATECHOLSULFONEPHTHALEIN Structure

PYROCATECHOLSUL...

CAS#:115-41-3

Learn More
Literature: Collection of Czechoslovak Chemical Communications, , vol. 67, # 12 p. 1779 - 1789

 Precursor & DownStream

This table lists upstream starting materials and downstream derivative products related to this chemical.

Precursor  2

DownStream  0

 Customs

This table shows customs‑related data including HS‑code, tariff and regulatory conditions for import and export.

HS Code 2934991000
Summary 2934991000. sultones and sultams. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

 Articles28

More Articles

This table lists relevant public references with title, journal and publication metadata for this compound.

Biological Activities and Chemical Composition of Methanolic Extracts of Selected Autochthonous Microalgae Strains from the Red Sea.

Mar. Drugs 13 , 3531-49, (2015)

Four lipid-rich microalgal species from the Red Sea belonging to three different genera (Nannochloris, Picochlorum and Desmochloris), previously isolated as novel biodiesel feedstocks, were bioprospec...

Biological evaluation, chelation, and molecular modeling studies of novel metal-chelating inhibitors of NF-kappaB-DNA binding: structure activity relationships.

J. Med. Chem. 49 , 3595-601, (2006)

Previously, we have reported that aurintricarboxylic acid (ATA) is one of the most potent inhibitors of the DNA binding of transcription factor NF-kappaB. We now report the NF-kappaB-DNA binding inhib...

Predicting the composition of red wine blends using an array of multicomponent Peptide-based sensors.

Molecules 20 , 9170-82, (2015)

Differential sensing using synthetic receptors as mimics of the mammalian senses of taste and smell is a powerful approach for the analysis of complex mixtures. Herein, we report on the effectiveness ...

 Synonyms

This table collects all English aliases, systematic names and CAS‑related synonyms of the compound.

4,4'-(1,1-Dioxido-3H-2,1-benzoxathiole-3,3-diyl)di(1,2-benzenediol)
CATECHOL VIOLET
PyrocatecholVioletGr
Pyrocatechol violet
3H-2,1-Benzoxathiole, 3,3-bis(3,4-dihydroxyphenyl)-, 1,1-dioxide
Pyrocatecholsulfonphthalein
3,3-bis-(3,4-dihydroxy-phenyl)-3H-benz[c][1,2]oxathiol-1,1-dioxide
PYROCATECHOLSULFONEPHTHALEIN
Brenzcatechinviolett
4,4'-(1,1-Dioxido-3H-2,1-benzoxathiole-3,3-diyl)dibenzene-1,2-diol
EINECS 204-088-3
3,3-Bis-(3,4-dihydroxy-phenyl)-3H-benz[c][1,2]oxathiol-1,1-dioxid
Pyrocatechimsulfonphthalein violed
PyrocatechinSulfonphthaleinViolet
MFCD00005868
PYROCATECHOL SULPHONPHTHALEIN
Catecholsulfonphthalein
CATECHOLSULFONAPHTHALEIN
1,2-Benzenediol, 4,4'-(3H-2,1-benzoxathiol-3-ylidene)bis-, S,S-dioxide (9CI)

 PYROCATECHOLSULFONEPHTHALEIN | FAQ

This section contains frequently‑asked‑questions about this compound, including basic parameters, properties, storage conditions and corresponding answers.

Q: What is the English name of Pyrocatechol Violet?
A: The English name of Pyrocatechol Violet is Pyrocatechol Violet.
Q: What is the CAS number of Pyrocatechol Violet?
A: CAS number of Pyrocatechol Violet is 115-41-3.
Q: How is the water solubility of Pyrocatechol Violet?
A: Water solubility of Pyrocatechol Violet: H2O: 1 mg/mL, clear, red.
Q: What is the melting point of Pyrocatechol Violet?
A: Melting point of Pyrocatechol Violet is 185 °C (dec.)(lit.).
Q: What is the LogP of Pyrocatechol Violet?
A: LogP of Pyrocatechol Violet is 1.82.
Q: What is the molecular formula of Pyrocatechol Violet?
A: Molecular formula of Pyrocatechol Violet is C19H14O7S.
Q: What is the molecular weight of Pyrocatechol Violet?
A: Molecular weight of Pyrocatechol Violet is 386.375.
Q: What is the InChIKey of Pyrocatechol Violet?
A: InChIKey of Pyrocatechol Violet is RRRCKIRSVQAAAS-UHFFFAOYSA-N.
Q: What are the upstream materials of Pyrocatechol Violet?
A: Related upstream materials(CAS) of Pyrocatechol Violet: 120-80-9;81-08-3.
Q: What is the polar surface area (PSA) of Pyrocatechol Violet?
A: Polar surface area (PSA) of Pyrocatechol Violet is 132.67000.

 PYROCATECHOLSULFONEPHTHALEINfactory

This table lists manufacturers and suppliers of this compound, including vendor names and product supply reference information.

Shanghai Nianxing Industrial Co., Ltd
Dayang Chem (Hangzhou) Co., Ltd.
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