Description

4-Chloro-3,5-Dimethylbenzoic Acid is a high-purity, synthetically versatile aromatic carboxylic acid derivative. This compound serves as a critical advanced pharmaceutical intermediate (API) and a valuable building block in organic synthesis, enabling the introduction of a sterically hindered, halogenated benzoic acid moiety. It is essential for research and production in the pharmaceutical, agrochemical, and specialty chemical industries, where precise molecular architecture is required.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for drugs targeting metabolic and inflammatory pathways.
• Agrochemical Synthesis: Building block for developing modern herbicides, fungicides, and plant growth regulators with enhanced efficacy.
• Liquid Crystal & Polymer Chemistry: Used in the production of monomers and additives for high-performance polymers and liquid crystal displays (LCDs).
• Organic Synthesis & Catalysis: Valuable reagent for constructing complex organic molecules and as a ligand or precursor in catalytic systems.
• Dyestuff & Pigment Manufacturing: Intermediate for creating specialized azo dyes and pigments with specific color fastness and stability properties.
• Research & Development: Standard for analytical methods and a starting material for novel compound libraries in medicinal chemistry research.

Basic Information

Product Name	4-Chloro-3,5-Dimethylbenzoic Acid
CAS No.	90649-78-8
Molecular Formula	C9H9ClO2
Molecular Weight	184.62 g/mol
Synonyms	3,5-Dimethyl-4-chlorobenzoic Acid; 4-Chloro-3,5-dimethylbenzoic acid; Benzoic acid, 4-chloro-3,5-dimethyl-; 4-Chloro-3,5-dimethyl-benzoic acid; 4-Chloro-3,5-dimethylbenzoic acid (CAS 90649-78-8); 4-Chloro-3,5-dimethyl-benzoic acid (1:1); 4-Chloro-3,5-dimethylbenzoic acid, 98%
EINECS	Contact for details

Quality Control

Our 4-Chloro-3,5-Dimethylbenzoic Acid is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure high purity and batch-to-batch consistency. A comprehensive Certificate of Analysis (COA) detailing identity, purity, 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 room temperature (15-25°C). Keep away from 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	168°C - 172°C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm

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