Description

4-Chlorophthalic Acid Monosodium Salt is a key organic intermediate and salt derivative of chlorinated phthalic acid. This compound matters for its role as a versatile building block in the synthesis of complex molecules, offering a balance of reactivity and stability. It is primarily needed by manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries for applications in research, development, and production.

Application

• Pharmaceutical Intermediate: Serves as a crucial precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly those with complex aromatic structures.
• Agrochemical Synthesis: Used in the production of advanced herbicides, fungicides, and plant growth regulators.
• Dye and Pigment Manufacturing: Acts as an intermediate for producing high-performance organic dyes and colorants.
• Polymer Modification: Employed in the synthesis of specialty polymers and resins, such as polyimides, to impart specific thermal or chemical resistance properties.
• Liquid Crystal & OLED Materials: Functions as a building block for advanced electronic materials used in displays and lighting.
• Chemical Research & Development: A valuable reagent for academic and industrial R&D in organic and medicinal chemistry.

Basic Information

Product Name	4-Chlorophthalic Acid Monosodium Salt
CAS No.	56047-23-5
Molecular Formula	C8H4ClNaO4
Molecular Weight	222.56 g/mol
Synonyms	Monosodium 4-Chlorophthalate; Sodium 4-Chlorophthalate; 4-Chlorophthalic Acid Sodium Salt; 4-Chloro-1,2-benzenedicarboxylic Acid Monosodium Salt; 4-Chlorobenzene-1,2-dicarboxylic Acid Monosodium Salt; 4-CPA Monosodium Salt
EINECS	Contact for details

Quality Control

Our 4-Chlorophthalic Acid Monosodium Salt is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including HPLC, IR, and titration methods, to ensure high purity and consistency. Certificates of Analysis (COA) detailing all specifications are available upon request to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and light-sensitive; containers must be kept tightly sealed after opening to minimize exposure to atmospheric moisture and light.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Heavy Metals (as Pb)	≤ 20 ppm
Residue on Ignition	≤ 0.1%

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