Description

2-Chloro-4-Hydroxybenzaldehyde is a versatile aromatic aldehyde derivative that serves as a critical building block in advanced organic synthesis. Its unique structure, featuring both chloro and hydroxy substituents, makes it a valuable intermediate for creating complex molecules with specific functionalities. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries seeking to develop new active ingredients and high-performance materials.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for compounds requiring a halogenated phenolic aldehyde scaffold.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and plant growth regulators where its chlorophenol structure is incorporated.
• Dye and Pigment Manufacturing: Serves as a starting material for synthesizing complex dyes, optical brighteners, and colorants.
• Liquid Crystal & Electronic Materials: A building block for creating advanced organic materials used in liquid crystal displays (LCDs) and organic semiconductors.
• Cross-Coupling Reactions: Utilized in palladium-catalyzed reactions like Suzuki or Heck couplings to construct biaryl systems.
• Chemical Research & Development: A valuable reagent for academic and industrial R&D in medicinal chemistry and material science.

Basic Information

Product Name	2-Chloro-4-Hydroxybenzaldehyde
CAS No.	54439-75-7
Molecular Formula	C7H5ClO2
Molecular Weight	156.57 g/mol
Synonyms	4-Hydroxy-2-chlorobenzaldehyde; 2-Chloro-4-hydroxybenzene carboxaldehyde; 2-Chloro-p-hydroxybenzaldehyde; 2-Chloro-4-formylphenol; 4-Formyl-3-chlorophenol; 3-Chloro-4-hydroxybenzaldehyde (common misnomer); 2-Chloro-4-hydroxy-benzaldehyde
EINECS	Contact for details

Quality Control

Our 2-Chloro-4-Hydroxybenzaldehyde is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation by IR and NMR spectroscopy, to ensure it meets exacting standards. A Certificate of Analysis (COA) detailing all specifications is provided with each shipment to guarantee traceability and compliance for your regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). This product is easily oxidized (store under inert atmosphere) and is light-sensitive (store away from light). Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	118°C - 122°C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm

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