Description

Phenoltetrachlorophthalein CAS NO 639-44-1 is a specialized organic compound belonging to the phthalein dye family, characterized by its distinct molecular structure incorporating phenol and tetrachlorophthalein groups. This chemical serves as a critical intermediate and functional dye in advanced material synthesis and analytical chemistry. It is primarily utilized by research institutions and industrial manufacturers in the production of specialized pigments, pH indicators, and as a reagent in synthetic organic chemistry.

Application

• Chemical Synthesis Intermediate: Used in the production of complex organic molecules and specialized dyes.
• pH Indicator and Analytical Reagent: Functions as a colorimetric indicator in laboratory analysis and titration processes.
• Specialty Pigments and Dyes: A key component in the formulation of high-performance pigments for industrial applications.
• Research & Development: Employed in academic and industrial R&D for studying reaction mechanisms and developing new materials.
• Photographic and Imaging Chemicals: Used in the synthesis of chemicals for specialized photographic processes.

Basic Information

Item	Details
Product Name	Phenoltetrachlorophthalein
CAS No.	639-44-1
Molecular Formula	C26H12Cl4O4
Molecular Weight	530.18 g/mol
Synonyms	Phenol, 4,4'-(3H-2,1-benzoxathiol-3-ylidene)bis[2,3,5,6-tetrachloro-, S,S-dioxide; Tetrachlorophenolphthalein; 3',3'',5',5''-Tetrachlorophenolphthalein; Phenol, 4,4'-(3H-2,1-benzoxathiol-3-ylidene)bis[2,3,5,6-tetrachloro-, S,S-dioxide; NSC 403796; Phenoltetrachlorophthalein
EINECS	Contact for details

Quality Control

Our Phenoltetrachlorophthalein is manufactured under strict quality control protocols to ensure batch-to-batch consistency and high purity. The production process adheres to current industry best practices. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with each shipment to guarantee product integrity for your applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Light yellow to beige powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%

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