Description

2-Chloro-4-Hydroxybenzaldehyde is a versatile aromatic aldehyde derivative that serves as a critical building block in advanced organic synthesis. Its bifunctional nature, featuring both a reactive aldehyde group and a phenolic hydroxyl group, makes it a valuable intermediate for constructing complex molecular architectures. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries seeking to develop new active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of various active pharmaceutical ingredients (APIs), particularly those with benzaldehyde or salicylaldehyde core structures.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and plant growth regulators, where the chloro and hydroxy substituents impart specific biological activity.
• Dye and Pigment Manufacturing: Serves as a starting material for synthesizing complex organic dyes, pigments, and optical brighteners.
• Ligand and Chelating Agent Precursor: The phenolic -OH and aldehyde -CHO groups allow for the creation of Schiff base ligands used in catalysis and metal complexation.
• Polymer Modification: Employed to introduce functional groups into polymer chains, enhancing properties like adhesion, UV stability, or chemical resistance.
• Flavor and Fragrance Intermediate: Used in the controlled synthesis of certain aroma chemicals and fragrance compounds.
• Research & Development: A valuable reagent in academic and industrial R&D for exploring new chemical reactions and synthesizing novel heterocyclic compounds.

Basic Information

Product Name	2-Chloro-4-Hydroxybenzaldehyde
CAS No.	56962-11-9
Molecular Formula	C7H5ClO2
Molecular Weight	156.57 g/mol
Synonyms	4-Hydroxy-2-chlorobenzaldehyde; 2-Chloro-4-hydroxybenzenecarboxaldehyde; 2-Chloro-p-hydroxybenzaldehyde; 2-Chloro-4-formylphenol; 4-Formyl-3-chlorophenol; 3-Chloro-4-hydroxybenzaldehyde (common misnomer); 2-Chlorosalicylaldehyde (common name)
EINECS	Contact for details

Quality Control

Our 2-Chloro-4-Hydroxybenzaldehyde is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation via IR and NMR spectroscopy, to ensure it meets the high standards required for synthetic applications. Certificates of Analysis (COA) detailing all test results are provided with every shipment to guarantee traceability, consistency, and reliability for your processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from incompatible materials such as strong oxidizing agents, strong bases, and reducing agents. Due to its light-sensitive nature, containers should be kept in opaque packaging or amber glass.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	118°C - 122°C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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