Description

3,4-Dichlorobenzoic Anhydride is a high-purity, reactive chemical intermediate essential for advanced organic synthesis. This compound matters for its role as a key building block in the production of complex molecules, offering reliable reactivity for introducing the 3,4-dichlorobenzoyl moiety. It is primarily needed by manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries for developing active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Serves as a crucial precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly those requiring the 3,4-dichlorophenyl group.
• Agrochemical Synthesis: Used in the manufacturing of herbicides, fungicides, and insecticides where the dichlorinated aromatic structure imparts specific biological activity.
• Polymer & Material Science: Acts as a monomer or cross-linking agent in the production of high-performance polymers, resins, and liquid crystals.
• Dyestuff & Pigment Production: Employed in the synthesis of complex organic dyes and pigments, contributing to color fastness and stability.
• Chemical Research & Development: A valuable reagent in academic and industrial R&D labs for exploring new synthetic pathways and novel compounds.
• Specialty Chemical Manufacturing: Utilized in the production of corrosion inhibitors, plasticizers, and other performance chemicals.

Basic Information

Product Name	3,4-Dichlorobenzoic Anhydride
CAS No.	86866-14-0
Molecular Formula	C14H6Cl4O3
Molecular Weight	356.01 g/mol
Synonyms	3,4-Dichlorobenzoic Acid Anhydride; Benzoic Acid, 3,4-Dichloro-, Anhydride; 3,4-DCBA; 3,4-Dichlorobenzoyl Anhydride; 3,4-Dichlorobenzoic Anhydride; Bis(3,4-dichlorobenzoyl) Ether; 3,4-Dichlorobenzoic Acid Cyclic Anhydride
EINECS	Contact for details

Quality Control

Our 3,4-Dichlorobenzoic Anhydride is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure high purity and consistency that meets the stringent requirements of our industrial and research clients. Certificates of Analysis (COA) documenting identity, purity, and impurity profiles are available upon request 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 a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent degradation from atmospheric moisture. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	White to off-white crystalline 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%
Heavy Metals (as Pb)	≤ 10 ppm

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