Description

4,5,6,7-Tetrabromophenolphthalein is a halogenated derivative of phenolphthalein, characterized by its high bromine content. This compound is valued for its role as a key intermediate and reagent in advanced organic synthesis and analytical chemistry. It is primarily sought by manufacturers and R&D laboratories in the pharmaceutical, fine chemical, and specialty dye sectors for developing novel compounds and analytical methods.

Application

• Chemical Synthesis Intermediate: Serves as a crucial building block for synthesizing more complex brominated organic compounds and specialty chemicals.
• Analytical Reagent: Used in specific colorimetric assays and as a pH indicator in specialized non-aqueous or harsh chemical environments.
• Flame Retardant Research: Investigated as a potential component or model compound in the development of novel brominated flame retardants for polymers and textiles.
• Pharmaceutical Research: Employed in medicinal chemistry research for the synthesis of drug candidates, particularly those requiring bromine atoms for bioactivity.
• Dye and Pigment Precursor: Acts as a precursor in the manufacture of specialized dyes and pigments where bromine substitution alters color properties and stability.
• Laboratory Standard: Utilized as a reference standard in chromatographic analysis and for calibrating analytical equipment in quality control laboratories.

Basic Information

Product Name	4,5,6,7-Tetrabromophenolphthalein
CAS No.	13027-28-6
Molecular Formula	C20H8Br4O4
Molecular Weight	647.90 g/mol
Synonyms	Phenolphthalein, 4,5,6,7-tetrabromo-; 3,3-Bis(3,5-dibromo-4-hydroxyphenyl)-1(3H)-isobenzofuranone; Tetrabromophenolphthalein; NSC 406916; 4,5,6,7-Tetrabromophenolphthalein (indicator grade); Bromophenolphthalein (unspecified)
EINECS	235-883-1

Quality Control

Our 4,5,6,7-Tetrabromophenolphthalein is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation via FT-IR and melting point determination, to ensure it meets exacting standards for research and industrial use. A Certificate of Analysis (COA) detailing all test results is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (15-25°C). Keep away from incompatible materials such as strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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