Description

5-Chloro-3-Phenylisothiazol-4-Ol is a versatile heterocyclic building block of significant interest in advanced organic synthesis. Its core value lies in the functionalized isothiazole scaffold, which is a privileged structure for developing bioactive molecules. This compound is primarily needed by research and development chemists in the pharmaceutical and agrochemical industries for the creation of novel active ingredients and intermediates.

Application

• Pharmaceutical Intermediate: Serves as a key precursor in the synthesis of novel drug candidates, particularly those targeting neurological disorders and infectious diseases.
• Agrochemical Research: Used in developing new generations of fungicides and herbicides, leveraging the bioactivity of the isothiazole moiety.
• Material Science: Acts as a monomer or functional additive in the research of specialty polymers and advanced materials.
• Chemical Synthesis: Employed as a versatile building block for constructing complex heterocyclic systems in academic and industrial R&D settings.
• Ligand & Catalyst Development: Utilized in the design of novel chelating ligands and organocatalysts for asymmetric synthesis.

Basic Information

Product Name	5-Chloro-3-Phenylisothiazol-4-Ol
CAS No.	19389-32-3
Molecular Formula	C9H6ClNOS
Molecular Weight	211.67 g/mol
Synonyms	4-Hydroxy-5-chloro-3-phenylisothiazole; 5-Chloro-3-phenyl-4-isothiazolol; 5-Chloro-3-phenyl-1,2-thiazol-4-ol; 3-Phenyl-5-chloroisothiazol-4-ol; 4-Isothiazolol, 5-chloro-3-phenyl-; 5-Chloro-3-phenyl-4-hydroxyisothiazole
EINECS	Contact for details

Quality Control

Our 5-Chloro-3-Phenylisothiazol-4-Ol is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation via FT-IR and NMR, to ensure it meets the high standards required for research and development applications. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with every shipment.

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 incompatible materials such as strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
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.