Description

4-(Chlorosulfonyl)-2-Hydroxybenzoic Acid is a versatile and reactive organic intermediate characterized by its distinct functional groups. This compound is valued for its role as a key building block in the synthesis of more complex molecules, particularly in fine chemical and pharmaceutical manufacturing. It is primarily sought after by research and development chemists and process engineers in the agrochemical, pharmaceutical, and specialty chemical industries for constructing active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: A critical precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly those requiring a sulfonamide or sulfonyl chloride moiety.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and other crop protection agents where its reactive sites allow for the introduction of specific bioactive groups.
• Dye and Pigment Manufacturing: Serves as a key component in the creation of complex organic dyes and pigments, leveraging its aromatic structure and functional handles.
• Polymer Modification: Employed to introduce functional groups into polymer chains, enhancing properties like adhesion, solubility, or reactivity for advanced material science applications.
• Chemical Research & Development: Utilized as a versatile scaffold in medicinal chemistry and material science research for exploring new molecular entities and their properties.

Basic Information

Product Name	4-(Chlorosulfonyl)-2-Hydroxybenzoic Acid
CAS No.	98273-15-5
Molecular Formula	C7H5ClO5S
Molecular Weight	236.63 g/mol
Synonyms	2-Hydroxy-4-(chlorosulfonyl)benzoic Acid; 4-Chlorosulfonylsalicylic Acid; 5-Carboxy-2-hydroxybenzenesulfonyl chloride; Benzoic acid, 2-hydroxy-4-(chlorosulfonyl)-; Salicylic acid, 4-(chlorosulfonyl)-
EINECS	Contact for details

Quality Control

Our production of 4-(Chlorosulfonyl)-2-Hydroxybenzoic Acid adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets exacting standards for use in sensitive synthesis applications. A detailed Certificate of Analysis (COA) is provided with each shipment to guarantee traceability and consistent quality.

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). Due to its hygroscopic nature, the container must be kept tightly sealed to prevent moisture absorption, which can affect product stability and reactivity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 1.0%
Related Substances (HPLC)	Individual impurity ≤ 0.5%

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