Description

Benzoyl Chloride, 4-Acetyl- (9Ci) CAS NO 31076-84-3 is a specialized aromatic acid chloride derivative, serving as a critical acylating agent and versatile synthetic intermediate in advanced organic synthesis. Its value lies in its high reactivity, enabling the efficient introduction of the 4-acetylbenzoyl moiety into target molecules, which is essential for constructing complex chemical architectures. This compound is primarily needed by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and specialty chemical industries for the synthesis of active ingredients, functional materials, and novel chemical entities.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of novel drug candidates, particularly in the development of kinase inhibitors and other small molecule therapeutics.
• Agrochemical Synthesis: Used in the production of advanced herbicides, fungicides, and plant growth regulators requiring specific acetylbenzoyl functional groups.
• Polymer Chemistry: Acts as a monomer or modifying agent in the synthesis of specialty polymers, including polyesters and polyamides with enhanced thermal or optical properties.
• Dye and Pigment Manufacturing: Serves as an intermediate for creating advanced organic pigments and dyes with specific color fastness and stability.
• Liquid Crystal & OLED Materials: Integral to the synthesis of photoactive compounds and charge-transport materials used in display technologies.
• Chemical Research & Development: A valuable reagent for method development, scaffold diversification, and exploring new reaction pathways in academic and industrial labs.

Basic Information

Product Name	Benzoyl Chloride, 4-Acetyl- (9Ci)
CAS No.	31076-84-3
Molecular Formula	C9H7ClO2
Molecular Weight	182.60 g/mol
Synonyms	4-Acetylbenzoyl chloride; p-Acetylbenzoyl chloride; 4-Acetylbenzoic acid chloride; 1-(4-Chlorocarbonylphenyl)ethanone; 4-Acetylbenzoyl chloride (9CI); 4-Acetyl-benzoylchlorid; Ethanone, 1-[4-(chlorocarbonyl)phenyl]-
EINECS	Contact for details

Quality Control

Our Benzoyl Chloride, 4-Acetyl- is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure high purity and consistency. Certificates of Analysis (COA) detailing identity, purity, and impurity profiles are provided with every shipment. We support compliance with cGMP and ICH guidelines for pharmaceutical applications, and specifications can be aligned with customer-specific requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at 15-25°C. This compound is hygroscopic (moisture-sensitive) and a strong acid/organic solvent. Keep the container tightly sealed under an inert atmosphere (e.g., nitrogen or argon) to prevent hydrolysis and degradation. Store away from moisture, heat, and incompatible materials such as strong bases, amines, and alcohols.

Specification

Item	Specification
Appearance	White to off-white crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Water Content (KF)	≤ 0.5%
Related Substances (HPLC)	Total impurities ≤ 2.0%

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