Pyrogallol Red
Pyrogallol Red (CAS: 32638-88-3), with the molecular formula C19H12O8S and a molecular weight of 400.36 g/mol, is a specialised analytical reagent. It is predominantly utilised as a complexometric indicator in various titration procedures. Its distinctive colour change properties are essential for accurately determining the endpoint in metal ion titrations, making it a valuable tool in chemical analysis and quality control laboratories.
- IUPAC
- Pyrogallolsulfonephthalein
- Synonyms
- Pyrogallolsulfonephthalein
Complexometric Indicator
Pyrogallol Red serves as an effective indicator in complexometric titrations. It forms distinct coloured complexes with metal ions, allowing for precise endpoint detection during the quantitative analysis of metal concentrations.
Analytical Chemistry Reagent
As a high-purity analytical reagent, Pyrogallol Red is employed in laboratory settings for various analytical procedures. Its application is crucial for accurate chemical measurements and research involving metal ion determination.
Metal Titration Indicator
This compound is specifically recommended for the titration of metals. The sharp colour transition of Pyrogallol Red signifies the completion of the reaction, ensuring reliable and reproducible titration results.
| Molecular weight | 400.36 |
|---|---|
| Empirical formula | C19H12O8S |
| Application | Complexometric indicator |
| Melting point | ≥300 °C(lit.) |
| Protective equipment | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
|---|---|
| Water hazard class (WGK, DE) | 3 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Pyrogallol Red used for?
+
Pyrogallol Red (CAS: 32638-88-3) is primarily used as a complexometric indicator in analytical chemistry, particularly for metal titrations.
What are the CAS number and formula for Pyrogallol Red?
+
The CAS number for Pyrogallol Red is 32638-88-3, and its empirical formula is C19H12O8S.
What grade and purity does Tech Serve Solutions supply?
+
Tech Serve Solutions supplies Pyrogallol Red as a technical/research grade chemical. We do not represent this product as meeting USP, BP, EP, or any other pharmacopoeia standards.
How should Pyrogallol Red be handled safely?
+
Handle Pyrogallol Red with appropriate personal protective equipment, including eyeshields and gloves. A type N95 (US) or type P1 (EN143) respirator filter should be used if airborne exposure is possible. It is classified under WGK Germany 3, indicating a high hazard to water.
Is Pyrogallol Red a controlled substance?
+
The provided data does not indicate that Pyrogallol Red is a controlled substance.
How are Tech Serve Solutions products packed and shipped?
+
Tech Serve Solutions ensures secure and compliant packaging for all chemicals, adhering to international shipping regulations for export. Specific packaging details are confirmed upon order.
How can I request a sample or a quote for Pyrogallol Red?
+
To request a sample or a quote for Pyrogallol Red, please contact our sales team through the website or by telephone, providing your specific requirements.
▶ Related products
(−)-Curcumol
C15H24O2
Cell Biology
(±) Clopidogrel hydrogensulfate
Cell Biology
(±)-L-Alliin
C6H11NO3S
Cell Biology
(±)-2-Amino-4-phosphonobutyric acid
C4H10NO5P
Cell Biology
(±)-2-Methylarachidonoyl-2′-fluoroethylamide
C23H38NOF
Cell Biology
(±)-3,4-Methylenedioxy-N-ethylamphetamine hydrochloride
Cell Biology
(±)-3,4-Methylenedioxyamphetamine hydrochloride
Cell Biology
(±)-3,4-Methylenedioxymethamphetamine hydrochloride
Cell Biology
▶ Explore more
3-Methyl-1,5-di-p-tolyl-1,4-pentazadiene
Chemical Synthesis
3-Methyl-1,5-pentanediol
Chemical Synthesis
3-Methyl-1-(2-methylphenyl)-1H-pyrazol-5-amine
C11H13N3
Chemical Synthesis
3-Methyl-1-(3′-sulfoamidophenyl)-5-pyrazolone
C10H11N3O3S
Chemical Synthesis