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Terephthaloyl Chloride (CAS 100-20-9), also known as 1,4-Benzenedicarbonyl chloride, is a high-performance diacid chloride. In Elemental Derivatives hierarchy, it serves as a critical "Bifunctional Acylating Agent." TCL's symmetric, para-substituted aromatic structure allows for the creation of exceptionally rigid and thermally stable polymer backbones. While globally recognised as the backbone of "Aramid" fibers (like Kevlar), 1,4-Phthaloyl chloride is an indispensable Agrochemical Intermediate for synthesising advanced herbicides and fungicides that require specific aromatic orientations for biological activity. We are a globally established bulk TCL supplier for competitive Terephthaloyl chloride prices and various other agrochemical intermediates from sourcing, r&d to manufacturing scaling through comprehensive regulatory documentation (CoA), manufacturing compliances, traceability, and consistent worldwide supply capabilities, ensuring reliable lead times and quality assurance across all grades.
Terephthaloyl Chloride (CAS 100-20-9), also known as 1,4-Benzenedicarbonyl chloride, is a high-performance diacid chloride. In Elemental Derivatives hierarchy, it serves as a critical "Bifunctional Acylating Agent." TCL's symmetric, para-substituted aromatic structure allows for the creation of exceptionally rigid and thermally stable polymer backbones. While globally recognised as the backbone of "Aramid" fibers (like Kevlar), 1,4-Phthaloyl chloride is an indispensable Agrochemical Intermediate for synthesising advanced herbicides and fungicides that require specific aromatic orientations for biological activity. We are a globally established bulk TCL supplier for competitive Terephthaloyl ...
Chemical Properties & Specifications
Corrosive to Metals (Cat 1)
Skin Corrosion (Cat 1B); Serious Eye Damage (Cat 1); STOT SE (Cat3) (Respiratory Irritation)
P260, P261, P264, P271, P280, P301+P330+P331, P302+P361+P354, P304+P340, P305+P354+P338, P316, P321, P363, P403+P233, P405, and P501
Coupling agent for synthesising complex Aromatic Herbicides and Fungicides. The para-linkage provided by TCL is essential for the molecular docking of certain agro-actives into plant enzyme sites
Primary monomer for Poly-p-phenylene terephthalamide (Aramid fibers). It is reacted with p-phenylenediamine to produce fibers with extreme tensile strength and heat resistance used in protective gear and aerospace
Synthesis of specialised drug delivery systems and cross-linked pharmaceutical polymers. It acts as a bridge for creating multi-functionalised aromatic drug precursors.
Storage under a Dry Nitrogen Blanket is mandatory to prevent moisture-induced degradation and pressure buildup from HCl gas release
Store in a cool, dry area (< 30°C). If supplied as a fused solid, heating for discharge must be controlled to prevent thermal decomposition
Use moisture-proof, polyethylene-lined steel drums or specialized ISO tanks for bulk liquid (molten) transport
Keep away from water, alcohols, strong bases, and amines (with which it reacts violently to form polyamides)