Description

4-Dichloromethylbenzoic Acid is a versatile halogenated aromatic carboxylic acid derivative, serving as a critical building block in advanced organic synthesis. Its value lies in the reactive dichloromethyl group, which allows for further functionalization to create complex molecular architectures. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries, where it is used to develop active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly those with benzyl or benzoic acid backbones.
• Agrochemical Synthesis: Building block for creating herbicides, fungicides, and plant growth regulators.
• Ligand and Catalyst Development: Used in the preparation of specialized ligands for metal-catalyzed coupling reactions.
• Polymer Chemistry: Monomer or modifier for producing high-performance polymers and resins with specific functional properties.
• Organic Synthesis Research: Valuable reagent for introducing the dichloromethylbenzoate moiety into more complex molecules in academic and industrial R&D.
• Dyestuff and Pigment Manufacturing: Intermediate in the production of specialized dyes and organic pigments.

Basic Information

Product Name	4-Dichloromethylbenzoic Acid
CAS No.	5278-91-1
Molecular Formula	C8H6Cl2O2
Molecular Weight	205.04 g/mol
Synonyms	4-(Dichloromethyl)benzoic Acid; α,α-Dichloro-p-toluic Acid; p-(Dichloromethyl)benzoic Acid; Benzoic acid, 4-(dichloromethyl)-; 4-Carboxybenzal Chloride; 5278-91-1; p-Carboxybenzal chloride
EINECS	226-099-9

Quality Control

Our 4-Dichloromethylbenzoic Acid is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation by IR and NMR spectroscopy, to ensure it meets the high standards required for synthetic applications. Certificates of Analysis (COA) documenting all critical parameters are available upon request to support your quality assurance and regulatory needs.

Storage

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

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%
Heavy Metals	< 10 ppm

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