Description

3,4,5,6-Tetrabromophenolsulfonephthalein is a halogenated derivative of phenolsulfonephthalein, a compound class known for its utility as a pH indicator and in analytical chemistry. This specific tetrabromo derivative is valued for its enhanced properties, making it a critical reagent in specialized chemical synthesis and research applications. It is primarily sought by manufacturers and R&D laboratories in the fine chemicals, pharmaceutical intermediates, and advanced material science sectors for its role as a building block or analytical standard.

Application

• Chemical Synthesis Intermediate: Serves as a key precursor in the synthesis of more complex brominated organic compounds and specialty dyes.
• Analytical Chemistry Reagent: Used as a pH indicator or a colorimetric reagent in specific titration methods and laboratory analyses.
• Research & Development: Employed in academic and industrial R&D for studying bromination reactions, dye chemistry, and material properties.
• Fine Chemical Production: Acts as a building block in the manufacture of high-value fine chemicals and functional materials.
• Pharmaceutical Intermediates: Potentially used in the research phase for developing novel active pharmaceutical ingredients (APIs) with specific bromine functionalities.

Basic Information

Product Name	3,4,5,6-Tetrabromophenolsulfonephthalein
CAS No.	77172-72-6
Molecular Formula	C19H8Br4O5S
Molecular Weight	691.85 g/mol
Synonyms	3,4,5,6-Tetrabromophenolsulfonphthalein; Tetrabromophenol Red; Bromophenol Red Tetrabromo Derivative; Phenol, 4,4'-(3H-2,1-benzoxathiol-3-ylidene)bis[2,3,5,6-tetrabromo-, S,S-dioxide; 3',3'',5',5''-Tetrabromophenolsulfonephthalein; TBPSP
EINECS	Contact for details

Quality Control

Our 3,4,5,6-Tetrabromophenolsulfonephthalein is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing specific results for assay, impurities, and physical properties are provided and available upon request to support your quality assurance processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This product is light-sensitive and should be handled accordingly to maintain stability.

Specification

Item	Specification
Appearance	Reddish-brown to dark brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Residue on Ignition	≤ 0.5%

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