Description

4-Carboxy-2-Chlorophenylisothiocyanate is a versatile and highly reactive organic building block, specifically an isothiocyanate derivative with a carboxylic acid functional group. Its bifunctional nature makes it a critical intermediate for the synthesis of complex molecules, enabling the creation of novel compounds with tailored properties. This compound is essential for research and development chemists in the pharmaceutical, agrochemical, and advanced materials sectors, where it is used to construct heterocyclic scaffolds and develop new active ingredients.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of novel drug candidates, particularly in the development of kinase inhibitors, anti-cancer agents, and other biologically active heterocycles.
• Agrochemical Research: Used in the creation of new herbicides, fungicides, and pesticides by serving as a precursor for active ingredients with specific modes of action.
• Chemical Biology & Proteomics: Acts as a reactive handle for bioconjugation and labeling of proteins or peptides due to the specific reactivity of the isothiocyanate group with amines.
• Material Science: Employed in the synthesis of functional polymers, dyes, and liquid crystals where the carboxylic acid and isothiocyanate groups allow for precise molecular design.
• Custom Synthesis & Contract Manufacturing: A valuable starting material for custom synthesis houses and CDMOs (Contract Development and Manufacturing Organizations) serving the global life sciences industry.

Basic Information

Product Name	4-Carboxy-2-Chlorophenylisothiocyanate
CAS No.	1027512-44-2
Molecular Formula	C8H4ClNO2S
Molecular Weight	213.64 g/mol
Synonyms	2-Chloro-4-carboxyphenyl isothiocyanate; 4-Isothiocyanato-2-chlorobenzoic acid; 2-Chloro-4-isothiocyanatobenzoic acid; 2-Chloro-4-(isothiocyanato)benzoic acid; Benzoic acid, 2-chloro-4-isothiocyanato-; (2-Chloro-4-carboxyphenyl)isothiocyanate; 4-Carboxy-2-chlorophenyl isothiocyanate
EINECS	Contact for details

Quality Control

Our 4-Carboxy-2-Chlorophenylisothiocyanate 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 spectroscopy, to ensure it meets the high standards required for research and development applications. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee traceability and consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Loss on Drying	≤ 1.0%
Heavy Metals	≤ 20 ppm

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