Description

Methyl 5-Chlorosulfonyl-2-Hydroxybenzoate is a versatile and high-value chemical intermediate characterized by its reactive chlorosulfonyl and ester functional groups. This compound is essential for the synthesis of complex molecules, particularly in the pharmaceutical and agrochemical sectors, where it serves as a key building block. It is primarily sought after by research institutions and manufacturers developing active pharmaceutical ingredients (APIs), specialty dyes, and advanced polymer modifiers.

Application

• Pharmaceutical Intermediate: A critical precursor in the synthesis of non-steroidal anti-inflammatory drugs (NSAIDs) and other therapeutic agents.
• Agrochemical Synthesis: Used in the production of advanced herbicides and fungicides, contributing to crop protection solutions.
• Dye and Pigment Manufacturing: Serves as a key intermediate for creating sulfonated azo dyes and other specialty colorants.
• Polymer Modification: Employed to introduce functional groups into polymer chains, enhancing material properties like adhesion and solubility.
• Organic Synthesis Research: A valuable reagent in academic and industrial R&D for constructing complex benzoate-derived compounds.
• Chemical Crosslinking Agent: Utilized in the formulation of specialty resins and coatings that require specific reactive sites.

Basic Information

Product Name	Methyl 5-Chlorosulfonyl-2-Hydroxybenzoate
CAS No.	60638-81-5
Molecular Formula	C8H7ClO5S
Molecular Weight	250.65 g/mol
Synonyms	5-(Chlorosulfonyl)-2-hydroxybenzoic acid methyl ester; Methyl 2-hydroxy-5-chlorosulfonylbenzoate; 2-Hydroxy-5-chlorosulfonylbenzoic acid methyl ester; Benzoic acid, 5-(chlorosulfonyl)-2-hydroxy-, methyl ester; Methyl 5-chlorosulfonylsalicylate
EINECS	Contact for details

Quality Control

Our production of Methyl 5-Chlorosulfonyl-2-Hydroxybenzoate adheres to stringent quality management protocols. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets exacting customer specifications. Certificates of Analysis (COA) detailing all relevant parameters are provided with every shipment to guarantee traceability and batch-to-batch consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed to prevent degradation from atmospheric moisture.

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%; Total impurities ≤ 1.5%

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