Description

2,4-Dichlororesorcinol CAS NO 16606-61-4 is a halogenated derivative of resorcinol, serving as a versatile and high-value organic intermediate in advanced chemical synthesis. Its core value lies in its reactive phenolic hydroxyl groups and chlorine substituents, which enable precise functionalization for creating complex molecular architectures. This compound is essential for manufacturers and R&D teams in the pharmaceutical, agrochemical, and specialty dye industries seeking to develop new active ingredients and performance materials.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of active pharmaceutical ingredients (APIs), particularly for compounds requiring a dichlorinated phenolic core.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and plant growth regulators where the chlororesorcinol structure provides specific bioactivity.
• Dye and Pigment Manufacturing: Serves as a precursor for developing high-performance, color-fast azo dyes and complex organic pigments.
• Polymer Chemistry: Acts as a monomer or cross-linking agent in the production of specialty resins, such as epoxy hardeners or flame-retardant polymers.
• Chemical Research & Development: A valuable reagent in organic synthesis for constructing heterocyclic compounds and other fine chemicals.
• UV Stabilizer and Antioxidant Precursor: Used in the development of additives for plastics and coatings to enhance durability and lifespan.

Basic Information

Product Name	2,4-Dichlororesorcinol
CAS No.	16606-61-4
Molecular Formula	C6H4Cl2O2
Molecular Weight	179.00 g/mol
Synonyms	2,4-Dichloro-1,3-benzenediol; 1,3-Dihydroxy-2,4-dichlorobenzene; Resorcinol, 2,4-dichloro-; 2,4-Dichlororesorcin; NSC 403107; 2,4-Dichlorobenzene-1,3-diol; 2,4-Dichloro-1,3-dihydroxybenzene
EINECS	240-672-9

Quality Control

Our 2,4-Dichlororesorcinol is produced under a strict quality management system to ensure batch-to-batch consistency and high purity. We employ advanced analytical techniques, including HPLC, GC, and NMR, to verify identity and quantify impurities. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with each shipment. Our quality commitment aligns with cGMP principles where applicable, supporting our customers' regulatory and research requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Keep away from strong oxidizing agents, strong bases, and incompatible materials. The container must be kept tightly closed to prevent moisture absorption and contamination.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	108°C - 112°C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Individual impurity ≤ 0.5%; Total impurities ≤ 1.5%

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