Description

Chloroacetic Anhydride is a highly reactive acylating agent and a key chemical intermediate in organic synthesis. Its primary value lies in its ability to efficiently introduce the chloroacetyl functional group, a critical building block for more complex molecules. This compound is essential for manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries seeking to produce active ingredients, herbicides, and polymers.

Application

• Pharmaceutical Intermediate: Synthesis of active pharmaceutical ingredients (APIs), particularly in the production of antibiotics and other chloracetamide-based drugs.
• Agrochemical Synthesis: Key reagent in the manufacture of herbicides, pesticides, and plant growth regulators.
• Polymer & Resin Production: Used as a modifier or cross-linking agent in the synthesis of specialty polymers and epoxy resins.
• Dye & Pigment Manufacturing: Acts as an intermediate in the production of certain reactive dyes and organic pigments.
• Chemical Research & Development: Employed in academic and industrial R&D labs for novel organic synthesis and process development.
• Fine Chemical Production: Serves as a precursor for various fine chemicals and other acid chlorides/anhydrides.

Basic Information

Product Name	Chloroacetic Anhydride
CAS No.	541-88-8
Molecular Formula	C4H4Cl2O3
Molecular Weight	170.98 g/mol
Synonyms	Chloroacetic acid anhydride; Chloroacetyl anhydride; Dichloroacetic anhydride (common misnomer); Monochloroacetic anhydride; 2-Chloroacetic acid anhydride; Acetic acid, 2-chloro-, anhydride; Bis(chloroacetyl) oxide; Chloroacetyl chloride (oligomer)
EINECS	208-794-3

Quality Control

Our Chloroacetic Anhydride is produced under stringent quality management systems. Each batch undergoes comprehensive analytical testing to ensure it meets exacting purity and consistency standards required for industrial and fine chemical applications. A detailed Certificate of Analysis (COA) is provided with every shipment, confirming compliance with agreed specifications.

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, amines, and oxidizing agents. Due to its hygroscopic nature, containers should be kept tightly sealed to prevent moisture absorption. Recommended storage temperature is 2-8°C for long-term stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 98.0%
Free Chloroacetic Acid	≤ 1.0%
Water Content (KF)	≤ 0.5%
Density (20°C)	~1.55 g/cm³

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