Description

1,2-Benzenediol, 3,4-Dichloro-5-Ethenyl- (9Ci) is a specialized chlorinated catechol derivative, a high-value intermediate in advanced organic synthesis. Its unique structure, featuring both phenolic and vinyl functionalities, makes it a critical building block for creating complex molecules with tailored properties. This compound is essential for research and development in the pharmaceutical and agrochemical sectors, where it serves as a precursor for active ingredients and functional materials. We supply this product with a focus on consistent purity and reliable global availability to support your most demanding projects.

Application

• Pharmaceutical Intermediate: Serves as a key synthon in the synthesis of novel drug candidates, particularly those targeting neurological and anti-infective pathways.
• Agrochemical Synthesis: Used in the development of next-generation herbicides and fungicides, leveraging its chlorinated catechol core for bioactivity.
• Polymer Chemistry: Acts as a functional monomer or cross-linking agent for specialty polymers, including high-performance resins and coatings.
• Material Science Research: Employed in the creation of advanced organic electronic materials and metal-chelating ligands.
• Chemical Synthesis: A versatile reagent for constructing complex heterocycles and fine chemicals in research laboratories.

Basic Information

Product Name	1,2-Benzenediol, 3,4-Dichloro-5-Ethenyl- (9Ci)
CAS No.	154638-90-1
Molecular Formula	C8H6Cl2O2
Molecular Weight	205.04 g/mol
Synonyms	3,4-Dichloro-5-vinylcatechol; 3,4-Dichloro-5-vinyl-1,2-benzenediol; 5-Ethenyl-3,4-dichlorobenzene-1,2-diol; 3,4-Dichloro-5-vinylpyrocatechol; 1,2-Dihydroxy-3,4-dichloro-5-vinylbenzene; 154638-90-1; 3,4-Dichloro-5-vinyl-1,2-dihydroxybenzene
EINECS	Contact for details

Quality Control

Our production of 1,2-Benzenediol, 3,4-Dichloro-5-Ethenyl- (9Ci) adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation via FT-IR and NMR spectroscopy, to ensure it meets exacting customer specifications. A detailed Certificate of Analysis (COA) is provided with each shipment, documenting all critical quality parameters. We are committed to supply chain transparency and batch-to-batch consistency to support your regulatory and R&D requirements.

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 light-sensitive and easily oxidized nature, it is recommended to store the material under an inert atmosphere (e.g., nitrogen or argon) for long-term stability. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
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.