Description

1,2,4,5-Benzenetetrakis(Carbonyl Chloride) is a highly reactive aromatic tetraacyl chloride derivative, serving as a critical building block for the synthesis of complex organic frameworks. Its value lies in its ability to introduce four reactive carbonyl chloride groups into a single, symmetrical benzene core, enabling the creation of high-performance polymers and functional materials. This compound is essential for R&D chemists and process engineers in the advanced polymer, pharmaceutical intermediate, and specialty chemical industries.

Application

• Polymer Synthesis: Key monomer for producing high-performance polyamides, polyimides, and polyesters with exceptional thermal stability and mechanical properties.
• Pharmaceutical Intermediates: Used in the synthesis of complex drug molecules and active pharmaceutical ingredients (APIs) requiring symmetrical, multi-functional aromatic cores.
• Crosslinking Agent: Functions as a tetra-functional crosslinker in epoxy resins and other thermoset polymers to enhance network density and durability.
• Dendrimer & Hyperbranched Polymer Construction: Serves as a core or branching unit in the controlled synthesis of dendritic macromolecules for nanotechnology and drug delivery applications.
• Liquid Crystal & OLED Materials: A precursor for synthesizing star-shaped or cruciform organic semiconductors and liquid crystal compounds used in electronic displays.
• Metal-Organic Framework (MOF) Linker: Can be modified to create organic linkers for constructing porous coordination polymers with tailored pore sizes and surface areas.
• Surface Modification & Coatings: Used to functionalize material surfaces (e.g., silica, carbon nanotubes) to improve adhesion or introduce specific chemical properties.
• Specialty Chemical Synthesis: Intermediate for manufacturing dyes, pigments, and other fine chemicals requiring a symmetrical tetrasubstituted benzene structure.

Basic Information

Product Name	1,2,4,5-Benzenetetrakis(Carbonyl Chloride)
CAS No.	7710-20-5
Molecular Formula	C10Cl4O4
Molecular Weight	315.91 g/mol
Synonyms	Pyromellitic Tetrachloride; Pyromellitic Acid Tetrachloride; 1,2,4,5-Benzenetetracarboxylic Acid Tetrachloride; 1,2,4,5-Benzenetetracarboxylic Chloride; Tetrachloropyromellitic Acid; Benzene-1,2,4,5-tetracarbonyl Tetrachloride; PMTCl; PMTA-Cl
EINECS	231-729-4

Quality Control

Our 1,2,4,5-Benzenetetrakis(Carbonyl Chloride) is manufactured under stringent process controls to ensure batch-to-batch consistency and high purity. Quality is verified through a comprehensive suite of analytical techniques including HPLC, NMR, and titration methods. A Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with each shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at 15-25°C. This product is hygroscopic (moisture-sensitive) and reacts violently with water, alcohols, and bases. Containers must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) to prevent hydrolysis and degradation. Keep away from heat, open flames, and incompatible materials such as strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	255 - 265 °C
Water Content (KF)	≤ 0.5%
Chloride Content (Titration)	44.5 - 45.5%
Heavy Metals (as Pb)	≤ 10 ppm

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