Description

Chloromethyl Butyrate CAS NO 33657-49-7 is a versatile organic ester compound featuring a reactive chloromethyl group. This bifunctional structure makes it a valuable chemical intermediate and alkylating agent for the synthesis of more complex molecules. It is primarily used by manufacturers in the pharmaceutical and agrochemical industries for research and production processes.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of active pharmaceutical ingredients (APIs) and prodrugs.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and plant growth regulators.
• Polymer Modification: Acts as a functional monomer or cross-linking agent for specialty polymers and resins.
• Organic Synthesis: Serves as an alkylating agent in fine chemical and academic research laboratories.
• Flavor & Fragrance Industry: Intermediate for the creation of specific ester-based aroma compounds.
• Chemical Research: Utilized in method development and as a reagent for introducing the butyryloxymethyl group.

Basic Information

Product Name	Chloromethyl Butyrate
CAS No.	33657-49-7
Molecular Formula	C5H9ClO2
Molecular Weight	136.58 g/mol
Synonyms	Butyryloxymethyl Chloride; Chloromethyl Butanoate; Butanoic Acid Chloromethyl Ester; (Chloromethoxy)butanal; 1-Butyryloxymethyl Chloride; POM-Cl (Butyrate); Butyric Acid Chloromethyl Ester; 33657-49-7
EINECS	Contact for details

Quality Control

Our Chloromethyl Butyrate is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including GC/HPLC for purity and identity confirmation, to ensure it meets precise customer specifications. 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 area away from incompatible materials such as strong bases and oxidizing agents. Recommended storage temperature is between 2°C and 8°C to maintain stability and extend shelf life. Keep container tightly sealed when not in use to prevent moisture absorption and degradation.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Related Substances (GC)	≤ 2.0% total
Density (at 20°C)	~1.09 g/cm³

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