Description

4-Chloro-Pentanoyl Chloride is a versatile and highly reactive acid chloride derivative, serving as a critical building block in advanced organic synthesis. Its value lies in its dual functional groups, enabling efficient acylation and nucleophilic substitution reactions to construct complex molecular architectures. This intermediate is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries, particularly for developing active pharmaceutical ingredients (APIs) and novel crop protection agents.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of various active pharmaceutical ingredients (APIs), including potential antiviral and antibacterial compounds.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and insecticides, where the chloro and acyl chloride functionalities are leveraged for structural diversification.
• Polymer Chemistry: Acts as a monomer or cross-linking agent in the production of specialty polymers and resins with tailored properties.
• Organic Synthesis Reagent: Employed in academic and industrial R&D for the preparation of esters, amides, and ketones via Friedel-Crafts acylation and other reactions.
• Dye and Pigment Manufacturing: Serves as an intermediate in the synthesis of complex organic dyes and colorants.
• Liquid Crystal & OLED Materials: A building block for creating advanced organic electronic materials requiring specific chlorinated molecular segments.

Basic Information

Product Name	4-Chloro-Pentanoyl Chloride
CAS No.	63480-12-6
Molecular Formula	C5H8Cl2O
Molecular Weight	155.02 g/mol
Synonyms	4-Chlorovaleryl Chloride; 4-Chloropentanoyl Chloride; Pentanoyl chloride, 4-chloro-; γ-Chlorovaleryl Chloride; 4-Chloropentanoic Acid Chloride; 1-Chloro-4-chlorocarbonylbutane; 4-Chloro-n-valeryl chloride; Butane, 1-chloro-4-chlorocarbonyl-
EINECS	Contact for details

Quality Control

Our 4-Chloro-Pentanoyl Chloride is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including GC/HPLC for purity and identity confirmation (IR, NMR), to ensure it meets the high standards required for sensitive synthetic applications. Certificates of Analysis (COA) documenting purity, assay, and impurity profiles are available upon request to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Due to its hygroscopic (moisture-sensitive) nature and reactivity as a strong acid/organic solvent, store under an inert atmosphere (e.g., nitrogen or argon) in a cool, dry, and well-ventilated area. Recommended storage temperature is 2-8°C for long-term stability. Keep away from moisture, heat, and incompatible materials such as bases, alcohols, and oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Assay (GC/HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Related Impurities (GC)	≤ 1.0% (Total)

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