Description

Bromopyrogallol Red is a synthetic organic dye and a versatile analytical reagent belonging to the triphenylmethane family. Its primary value lies in its use as a sensitive and selective chromogenic agent for the spectrophotometric determination of various metal ions. This compound is essential for industries and research institutions requiring precise quantitative analysis, particularly in environmental monitoring, pharmaceutical quality control, and metallurgical testing.

Application

• Spectrophotometric Reagent: Used as a sensitive colorimetric indicator for the detection and quantification of metal ions such as aluminum, beryllium, and gallium in analytical chemistry.
• Environmental Analysis: Employed in water and soil testing protocols to measure trace metal contamination levels for environmental compliance and safety assessments.
• Pharmaceutical QC: Serves as a reagent in the analysis of active pharmaceutical ingredients (APIs) and excipients for residual metal catalyst content.
• Biochemical Research: Utilized in laboratory studies as a staining agent or a probe in various biochemical and histochemical assays.
• Industrial Process Control: Applied in metallurgical and mining industries for the rapid on-site analysis of ore samples and process streams.
• Dye Intermediate: Acts as a precursor or intermediate in the synthesis of more complex dyes and pigments for specialized applications.

Basic Information

Product Name	Bromopyrogallol Red
CAS No.	16574-43-9
Molecular Formula	C19H10Br2O8S
Molecular Weight	574.15 g/mol
Synonyms	Bromopyrogallol Red; 3',3'',5',5''-Tetrabromopyrogallolsulfonephthalein; BPR; Tetrabromopyrogallol Red; Pyrogallol Red, tetrabromo-; 2,7-Bis(2,4,6-tribromophenol)-1,8-dihydroxynaphthalene-3,6-disulfonic acid (related structure); C.I. 45405; Acid Red 285
EINECS	Contact for details

Quality Control

Our Bromopyrogallol Red is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure high purity, consistent performance, and compliance with relevant industry standards for analytical reagents. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment and is available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Keep away from incompatible materials. The product is light-sensitive (store away from light).

Specification

Item	Specification
Appearance	Dark red to brownish-red powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0 %
Residue on Ignition (Sulfated Ash)	≤ 0.5 %
Absorbance (Lambda max)	Conforms
Suitability Test (for Metal Ion Detection)	Passes test

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.