Description

Propanoyl Chloride, 3-Methoxy- is a versatile and highly reactive acyl chloride derivative, essential for introducing the 3-methoxypropanoyl moiety into target molecules. Its primary value lies in its role as a key building block for the synthesis of complex organic compounds, enabling efficient amide and ester bond formation. This intermediate is particularly critical for manufacturers in the pharmaceutical and agrochemical sectors, where it is used to create active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: A key reagent in the synthesis of active pharmaceutical ingredients (APIs), particularly for compounds requiring a methoxy-substituted propionyl group.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and insecticides, where it acts as an acylating agent to modify biological activity.
• Polymer Chemistry: Serves as a monomer or modifying agent in the creation of specialty polymers with tailored properties.
• Dye and Pigment Manufacturing: Employed in the synthesis of complex organic dyes and colorants.
• Liquid Crystal & OLED Materials: Acts as a precursor in the production of advanced electronic and display materials.
• Chemical Research & Development: A valuable tool for medicinal chemists and researchers exploring new molecular entities and reaction pathways.

Basic Information

Product Name	Propanoyl Chloride, 3-Methoxy-
CAS No.	4244-59-1
Molecular Formula	C4H7ClO2
Molecular Weight	122.55 g/mol
Synonyms	3-Methoxypropionyl Chloride; β-Methoxypropionyl Chloride; 3-Methoxypropanoyl Chloride; Methoxypropionyl Chloride; 3-Methoxypropanoic Acid Chloride; NSC 401123; 3-Methoxypropionic Acid Chloride
EINECS	224-214-5

Quality Control

Every batch of Propanoyl Chloride, 3-Methoxy- is manufactured and tested under a strict quality management system. We provide comprehensive Certificates of Analysis (COA) that detail purity, identity, and impurity profiles, ensuring traceability and compliance with your project requirements. Our quality commitment supports applications in regulated environments, including cGMP for pharmaceutical intermediates.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and reacts vigorously with water, strong bases, and alcohols. Keep the container tightly sealed under an inert atmosphere (e.g., nitrogen or argon) to prevent degradation from moisture and to maintain purity.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Acid Value	Contact for details
Density (20°C)	~1.15 g/cm³
Refractive Index (n20D)	~1.425

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