Description

Benzenebutanoyl Chloride, 4-Chloro- CAS NO 54654-08-9 is a specialized organic intermediate featuring a reactive acid chloride group and a chlorinated aromatic ring. This molecular structure makes it a valuable building block for synthesizing more complex molecules in fine chemical and pharmaceutical research. It is primarily sought after by R&D chemists and process development scientists working in advanced organic synthesis.

Application

• Pharmaceutical Intermediate: Serves as a key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly those requiring a chlorinated phenylbutyryl moiety.
• Agrochemical Synthesis: Used in the research and development of novel herbicides, fungicides, and plant growth regulators.
• Liquid Crystal & Polymer Chemistry: Acts as a monomer or modifying agent in the production of specialty polymers and advanced materials with specific optical properties.
• Organic Synthesis Reagent: Employed in academic and industrial laboratories for introducing the 4-chlorophenylbutanoyl group into target molecules via acylations or further functionalization.
• Dye & Pigment Manufacturing: Utilized as an intermediate in the synthesis of complex organic dyes and colorants.

Basic Information

Product Name	Benzenebutanoyl Chloride, 4-Chloro-
CAS No.	54654-08-9
Molecular Formula	C₁₀H₁₀Cl₂O
Molecular Weight	217.09 g/mol
Synonyms	4-Chlorobenzenebutanoyl Chloride; 4-Chloro-γ-phenylbutyryl Chloride; 4-Chlorophenylbutyryl Chloride; γ-(4-Chlorophenyl)butyryl Chloride; 4-Chloro-benzenebutanoic acid chloride; (4-Chlorophenyl)butanoyl chloride; Butanoyl chloride, 4-chloro-γ-phenyl-; 54654-08-9
EINECS	Contact for details

Quality Control

Our Benzenebutanoyl Chloride, 4-Chloro- is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including chromatographic purity analysis and identity confirmation, to ensure it meets the high standards required for research and industrial synthesis. A Certificate of Analysis (COA) detailing specific results is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area. Due to its hygroscopic (moisture-sensitive) nature and reactivity as a strong acid/organic solvent derivative, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) to prevent decomposition. Recommended storage temperature is 2-8°C for long-term stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%

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