Description

4-Phenylazobenzoyl Chloride is a key aromatic acid chloride derivative, widely utilized as a versatile building block in advanced organic synthesis. Its reactive acyl chloride functional group makes it an essential reagent for introducing the 4-phenylazobenzoyl moiety, a chromophore with useful optical properties. This compound is particularly valuable for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries developing new dyes, analytical reagents, and functional materials.

Application

• Pharmaceutical Intermediate: Used in the synthesis of active pharmaceutical ingredients (APIs) and diagnostic agents.
• Dye and Pigment Manufacturing: Serves as a precursor for azo dyes and pigments, imparting color and specific light-absorption characteristics.
• Liquid Crystal and OLED Material Synthesis: A key building block for creating chromophores used in display technologies and organic electronics.
• Analytical Chemistry Reagent: Employed in derivatization processes for the detection and analysis of various compounds via spectrophotometric methods.
• Polymer Functionalization: Used to modify polymers by introducing azo aromatic groups to alter physical or optical properties.
• Research & Development: A crucial reagent in academic and industrial R&D for exploring new chemical entities and materials science applications.

Basic Information

Product Name	4-Phenylazobenzoyl Chloride
CAS No.	104-24-5
Molecular Formula	C19H13ClN2O
Molecular Weight	320.77 g/mol
Synonyms	p-Phenylazobenzoyl Chloride; 4-(Phenylazo)benzoyl Chloride; Benzoic Acid, 4-(Phenylazo)-, Chloride; Azobenzene-4-carbonyl Chloride; (4-Phenylazophenyl)carbonyl Chloride; 4-(Phenyldiazenyl)benzoyl Chloride; p-Azobenzoyl Chloride
EINECS	203-186-0

Quality Control

Our 4-Phenylazobenzoyl Chloride is produced under strict quality management protocols. Every batch undergoes comprehensive analytical testing to ensure high purity and consistency, meeting the stringent requirements of research and industrial applications. A detailed Certificate of Analysis (COA) is provided with each shipment, documenting key parameters such as assay, identity, and impurity profiles.

Storage

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

Specification

Item	Specification
Appearance	Orange to red crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Water Content (KF)	≤ 0.5%

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