Description

Phthaloyl Dichloride is a high-purity, reactive organic compound widely used as a key building block in chemical synthesis. Its primary value lies in its dual acid chloride functionality, making it an essential intermediate for the production of pharmaceuticals, agrochemicals, and advanced polymers. This product is critical for research and industrial applications requiring precise and reliable chemical intermediates, particularly in the synthesis of active pharmaceutical ingredients (APIs), dyes, and specialty polymers.

Application

• Pharmaceutical Intermediate: A crucial building block for synthesizing active pharmaceutical ingredients (APIs), particularly those containing phthalimide or phthalamic acid structures.
• Polymer Chemistry: Used in the production of polyimides, polyamides, and other high-performance polymers known for their thermal stability and mechanical strength.
• Agrochemical Synthesis: Serves as an intermediate in the manufacture of certain herbicides, fungicides, and plant growth regulators.
• Dye and Pigment Manufacturing: Acts as a precursor in the synthesis of phthalocyanine dyes and other organic colorants.
• Organic Synthesis Reagent: Employed in laboratories and pilot plants for introducing the phthaloyl protecting group or for acylating reactions.
• Specialty Chemicals: Used in the production of plasticizers, corrosion inhibitors, and other functional chemical additives.

Basic Information

Product Name	Phthaloyl Dichloride
CAS No.	88-95-9
Molecular Formula	C8H4Cl2O2
Molecular Weight	203.02 g/mol
Synonyms	Phthaloyl Chloride; Isophthaloyl Dichloride; Isophthalic Acid Dichloride; 1,3-Benzenedicarbonyl Dichloride; m-Phthaloyl Dichloride; Isophthaloyl Chloride; Benzene-1,3-dicarbonyl Chloride; m-Phthaloyl Chloride
EINECS	201-873-5

Quality Control

Our Phthaloyl Dichloride is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes rigorous analytical testing, including assay, impurity profiling, and identity confirmation. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee compliance with your specifications and industry standards.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials such as strong bases, alcohols, and amines. Due to its hygroscopic (moisture-sensitive) nature, containers should be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) to prevent hydrolysis. Recommended storage temperature is 2-8°C for long-term stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid / crystals
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Free Chloride	≤ 0.1%
Related Substances (HPLC)	Total impurities ≤ 2.0%

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