Description

Benzoyl Chloride, 3,4-Dihydroxy- (9Ci) is a specialized benzoyl chloride derivative featuring two phenolic hydroxyl groups on the aromatic ring, making it a versatile intermediate for advanced synthesis. This compound is valued for its ability to introduce the 3,4-dihydroxybenzoyl moiety, a key structural motif in pharmaceuticals and fine chemicals. It is primarily sought by research and development chemists and process engineers in the pharmaceutical, agrochemical, and specialty chemical industries for creating active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Key building block for synthesizing active pharmaceutical ingredients (APIs), particularly those requiring catechol or gallic acid derivatives.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and plant growth regulators where the dihydroxybenzoyl group enhances biological activity.
• Polymer Chemistry: Serves as a monomer or cross-linking agent for creating specialty polymers with specific adhesion, UV-absorption, or antioxidant properties.
• Fine Chemical Production: Intermediate in the manufacture of dyes, pigments, and photographic chemicals.
• Antioxidant Synthesis: Precursor for manufacturing synthetic antioxidants used in food, cosmetics, and plastics.
• Research & Development: Valuable reagent in organic synthesis for academic and industrial R&D exploring new chemical entities.

Basic Information

Product Name	Benzoyl Chloride, 3,4-Dihydroxy- (9Ci)
CAS No.	83759-00-6
Molecular Formula	C7H5ClO3
Molecular Weight	172.57 g/mol
Synonyms	3,4-Dihydroxybenzoyl Chloride; Protocatechuoyl Chloride; 3,4-Dihydroxybenzoic Acid Chloride; 3,4-Dihydroxybenzoyl Chloride (9CI); 3,4-Dihydroxybenzoyl Chloride (9Ci); Benzoyl chloride, 3,4-dihydroxy-; 3,4-Dihydroxybenzoic chloride
EINECS	Contact for details

Quality Control

Our Benzoyl Chloride, 3,4-Dihydroxy- (9Ci) is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing to ensure high purity and consistency, meeting the stringent requirements for advanced synthetic applications. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at a controlled room temperature (typically 15-25°C). 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.

Specification

Item	Specification
Appearance	Off-white to light brown crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Melting Point	Contact for details
Water Content (KF)	≤ 1.0%
Related Substances (HPLC)	Contact for details

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