Description

2-Amino-4,5-Dichlorophenol is a versatile halogenated aniline derivative that serves as a critical building block in advanced organic synthesis. Its unique structure, featuring both amino and hydroxyl groups on a dichlorinated benzene ring, makes it a valuable intermediate for creating complex molecules with specific functionalities. This compound is primarily sought after by manufacturers in the pharmaceutical, agrochemical, and specialty dye industries for the development of 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 scaffold.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and pesticides, where the dichlorophenol structure contributes to biological activity.
• Dye and Pigment Manufacturing: Serves as a coupling agent and intermediate for azo dyes and other high-value pigments, providing color fastness and stability.
• Polymer Additives: Acts as a monomer or stabilizer in the production of specialty polymers and resins, enhancing material properties.
• Chemical Research & Development: Employed in organic synthesis laboratories for constructing complex heterocyclic compounds and for methodological studies.
• Photographic Chemicals: Can be utilized in the formulation of certain photographic developers and sensitizers.

Basic Information

Product Name	2-Amino-4,5-Dichlorophenol
CAS No.	28443-57-4
Molecular Formula	C6H5Cl2NO
Molecular Weight	178.02 g/mol
Synonyms	4,5-Dichloro-2-aminophenol; 2-Amino-4,5-dichlorophenol; 4,5-Dichloro-2-hydroxyaniline; 2-Hydroxy-4,5-dichloroaniline; 1-Amino-2-hydroxy-4,5-dichlorobenzene; 4,5-Dichloro-2-aminophenol; 2-Amino-4,5-dichloro-1-hydroxybenzene; 4,5-Dichloro-2-aminophenol (primary)
EINECS	249-073-9

Quality Control

Our 2-Amino-4,5-Dichlorophenol is manufactured under a strict quality management system to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including HPLC for assay and impurity profiling. A Certificate of Analysis (COA) detailing purity, identity, and specific impurity limits is provided with every shipment to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at a controlled room temperature (15-25°C). Due to its sensitivity to oxidation, it is recommended to store under an inert atmosphere (e.g., nitrogen or argon) for long-term preservation. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Light tan to brown crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	158°C - 165°C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm
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.