Description

Butanoyl Chloride, 4-Ethoxy-2-Oxo- is a specialized organic acid chloride derivative, serving as a critical building block in advanced organic synthesis. Its value lies in its high reactivity, enabling the efficient introduction of the 4-ethoxy-2-oxobutanoyl moiety into target molecules, which is essential for constructing complex chemical architectures. This compound is primarily needed by research institutions and industrial manufacturers in the pharmaceutical, agrochemical, and fine chemical sectors for developing active ingredients and novel materials.

Application

• Pharmaceutical Intermediate: Key reagent in the synthesis of active pharmaceutical ingredients (APIs), particularly for molecules containing β-keto ester or amide functionalities.
• Agrochemical Synthesis: Used in the production of advanced herbicides, fungicides, and plant growth regulators requiring specific acylating agents.
• Fine Chemical Production: Employed in the manufacture of dyes, pigments, and specialty polymers where precise acylation is necessary.
• Peptide & Protein Research: Acts as a coupling agent or protecting group modifier in peptide chemistry and biochemical research.
• Material Science: Utilized in the surface modification of polymers and the creation of novel organic frameworks with tailored properties.
• Academic & R&D Laboratories: Serves as a valuable tool for methodological development and exploratory synthesis in organic chemistry.

Basic Information

Product Name	Butanoyl Chloride, 4-Ethoxy-2-Oxo-
CAS No.	104776-91-2
Molecular Formula	C6H9ClO3
Molecular Weight	164.59 g/mol
Synonyms	4-Ethoxy-2-oxobutanoyl chloride; 2-Oxo-4-ethoxybutanoyl chloride; 4-Ethoxy-2-oxobutyryl chloride; Ethyl 3-(chloroformyl)-3-oxopropionate (tautomeric form); 3-Carbethoxypropionyl chloride (related common name); β-Ethoxyacetoacetyl chloride; (4-Ethoxy-2-oxobutyl)carbonyl chloride
EINECS	Contact for details

Quality Control

Our Butanoyl Chloride, 4-Ethoxy-2-Oxo- is produced under stringent quality management systems. Each batch undergoes rigorous analytical testing, including chromatography and spectroscopy, to ensure high purity and consistency. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing all critical parameters. Our quality commitment aligns with cGMP principles where applicable, supporting our customers' needs for reliable and traceable raw materials in regulated industries.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic and moisture-sensitive nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent decomposition. Keep away from strong bases, oxidizing agents, and sources of ignition.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Related Substances (HPLC)	Total impurities ≤ 3.0%
Acidity (Titration)	Contact for details

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