Description

1,3,5-Trichloro-2,4-Dinitrobenzene Hemihydrate, 99 is a high-purity, halogenated nitroaromatic compound that serves as a versatile and reactive synthetic intermediate. Its precise structure and high purity are critical for ensuring consistent results in advanced chemical synthesis and research. This material is essential for manufacturers and R&D laboratories in the pharmaceutical, agrochemical, and specialty chemical sectors who require reliable building blocks for complex molecule construction.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of active pharmaceutical ingredients (APIs), particularly for compounds requiring halogenated aromatic cores.
• Agrochemical Synthesis: Used in the production of advanced herbicides, fungicides, and pesticides where its nitro and chloro groups provide sites for further functionalization.
• Dye and Pigment Manufacturing: Serves as a precursor for the development of specialized azo dyes and high-performance pigments.
• Organic Synthesis Reagent: A valuable reagent in research laboratories for nucleophilic aromatic substitution (SNAr) reactions and cross-coupling chemistry.
• Material Science Research: Investigated as a monomer or additive for creating polymers with specific electronic or thermal properties.
• Chemical Standard: Utilized as an analytical reference standard for quality control and method development in chromatographic analysis.

Basic Information

Product Name	1,3,5-Trichloro-2,4-Dinitrobenzene Hemihydrate, 99
CAS No.	207742-81-2
Molecular Formula	C6HCl3N2O5 • 0.5H2O
Molecular Weight	279.44 g/mol (Anhydrous basis: 270.44 g/mol)
Synonyms	1,3,5-Trichloro-2,4-dinitrobenzene hydrate; 2,4-Dinitro-1,3,5-trichlorobenzene hemihydrate; s-Trichloro-2,4-dinitrobenzene hemihydrate; Benzene, 1,3,5-trichloro-2,4-dinitro-, hemihydrate; TCDNB hemihydrate; 1,3,5-Trichloro-2,4-dinitrobenzene monohydrate (common misnomer); NSC 406579 (hemihydrate)
EINECS	Contact for details

Quality Control

Our 1,3,5-Trichloro-2,4-Dinitrobenzene Hemihydrate is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure it meets the declared 99% minimum purity specification and is free from critical impurities. Certificates of Analysis (COA) detailing identity, purity, and related substances are available upon request to support your quality assurance protocols.

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 heat, sparks, and open flame. The compound is light-sensitive (store away from light).

Specification

Item	Specification
Appearance	Yellow to pale brown crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 99.0%
Water Content (KF)	3.0 - 4.5% (Theoretical for hemihydrate: ~3.22%)
Melting Point	Contact for details
Heavy Metals	< 20 ppm
Residue on Ignition	< 0.1%

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