Pyrocatechol violet
Order Pyrocatechol violet (CAS 115-41-3) online at Zemixal. Request a quote with price, lead time and documents. Packs from 1 g.
About Pyrocatechol violet
Zemixal supplies Pyrocatechol violet within its laboratory Chemicals & Reagents portfolio. For your records, the material is defined by CAS 115-41-3, formula C19H14O7S and molar mass 386.4 g/mol.
Use cases we see most often
- Titration end-point detection
- pH determination
- Analytical testing
Storage and safety notes
It carries the GHS signal word Warning (H315, H319 and H335), so wear gloves and eye protection and work with good ventilation.
Order it in 1 g and 5 g packs or ask for a bulk quotation. Each lot travels with a batch certificate of analysis and a 16-section SDS. Request pricing online and we confirm availability, documentation and freight to your country.
Typical uses
- Titration end-point detection
- pH determination
- Analytical testing
Applications
Specifications and identifiers
| Product name | Pyrocatechol violet |
|---|---|
| Catalogue number | ZX-037458 |
| CAS number | 115-41-3 |
| IUPAC name | 4-[3-(3,4-dihydroxyphenyl)-1,1-dioxo-2,1lambda6-benzoxathiol-3-yl]benzene-1,2-diol |
| Molecular formula | C19H14O7S |
| Molar mass | 386.4 g/mol |
| Exact mass | 386.046 |
| XLogP3 | 2.3 |
| H-bond donors / acceptors | 4 / 7 |
| Topological polar surface area | 133 Ų |
| HS code | 29072990 |
| InChIKey | RRRCKIRSVQAAAS-UHFFFAOYSA-N |
| SMILES | C1=CC=C2C(=C1)C(OS2(=O)=O)(C3=CC(=C(C=C3)O)O)C4=CC(=C(C=C4)O)O |
| PubChem CID | 66993 |
| Synonyms | 1,2-Benzenediol, 4,4'-(1,1-dioxido-3H-2,1-benzoxathiol-3-ylidene)bis-, Catechol violet, Pyrocatechinsulfonephthalein, Pyrocatecholsulfonphthalein, Pyrocatechol sulfonphthalein, 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 indicator, 3H-2,1-Benzoxathiole, 3,3-bis(3,4-dihydroxyphenyl)-, 1,1-dioxide, 1,2-Benzenediol, 4,4'-(3H-2,1-benzoxathiol-3-ylidene)bis-, S,S-dioxide, 4-[3-(3,4-dihydroxyphenyl)-1,1-dioxo-2,1$l^{6}-benzoxathiol-3-yl]benzene-1,2-diol, 3H-2, 3,3-bis(3,4-dihydroxyphenyl)-, 1,1-dioxide |
Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.
Safety and GHS hazards
Signal word Warning
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements P261, P264, P264 + P265, P271, P280, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, P332 + P317, P337 + P317, P362 + P364, P403 + P233, P405, P501
Classification summarised from public GHS notifications. It can vary with grade and concentration, so always follow the SDS supplied with your lot.
Pack sizes
| 1 g | Quoted on request | |
| 5 g | Quoted on request |
Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.
Questions about Pyrocatechol violet
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Other grades with CAS 115-41-3
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