Pyrocatechol violet
Also known as: Catechol violet, Catecholsulfonphthalein, Pyrocatecholsulfonephthalein, Pyrocatechol sulfonphthalein, 3,3-Bis(3,4-dihydroxyphenyl)-3H-2,1-benzoxathiole 1,1-dioxide, 4,4'-(1,1-Dioxido-3H-2,1-benzoxathiol-3-ylidene)bis(1,2-benzenediol)
Pyrocatechol violet (CAS 115-41-3) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C19H14O7S and a molecular weight of 386.375 g/mol. Key properties include a melting point of 185 °C (dec.)(lit.), a boiling point of 659.5±55.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 352.7±31.5 °C. It is listed by 1 supplier, from 15.40 to 18.40 CNY. Record last updated Aug 21, 2026.
- CAS No.
- 115-41-3
- Jingsj CID
- J-46641-1
- Molecular Formula
- C19H14O7S
- Molecular Weight
- 386.375 g/mol
- Category
- Alcohols
- Last updated
- 8/21/2026
| Supplier | Purity / Pack | Base Price | Unit Price | Origin | |
|---|---|---|---|---|---|
In Stock | IND 25g | ¥385.00 | $2.3 /gBest ¥15.40/g CNY | CN China MOQ 25g | |
In Stock | IND 5g | ¥92.00 | $2.75 /g ¥18.40/g CNY | CN China MOQ 5g |
Physicochemical Properties
| Melting Point | 185 °C (dec.)(lit.) |
|---|---|
| Boiling Point | 659.5±55.0 °C at 760 mmHg |
| Density | 1.6±0.1 g/cm3 |
| Flash Point | 352.7±31.5 °C |
| Exact Mass | 386.046021 |
| PSA | 132.67000 |
| LogP | 1.82 |
| Vapor Pressure | 0.0±2.1 mmHg at 25°C |
| Refractive Index | 1.740 |
| Additional Property | H2O: 1 mg/mL, clear, red |
Customs & Trade Information
| HS Code | 2934991000 |
|---|---|
| Summary | 2934991000. sultones and sultams. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of Pyrocatechol violet?
The CAS number of Pyrocatechol violet is 115-41-3.
What are the molecular formula and molecular weight of Pyrocatechol violet?
Pyrocatechol violet has molecular formula C19H14O7S and molecular weight 386.375 g/mol.
Which suppliers offer Pyrocatechol violet?
1 supplier(s) listed; reference unit price ¥15.40–18.40 /g.
What are the upstream and downstream products of Pyrocatechol violet?
For Pyrocatechol violet, Upstream Products: Catechol, 2-Sulfobenzoic anhydride.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Pyrocatechol violet (CAS 115-41-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-46641-1 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.