Description

[3-(Chlorosulfonyl)-4-Methoxyphenyl]Acetic Acid (Saltdata: Free) is a high-purity, functionalized phenylacetic acid derivative characterized by its reactive chlorosulfonyl and methoxy substituents. This compound serves as a critical advanced pharmaceutical intermediate (API) and a versatile building block for synthesizing more complex molecules. It is essential for research and production in the pharmaceutical and agrochemical industries, where its unique structure enables the creation of compounds with targeted biological activity. Our supply ensures consistent quality and reliable availability for global development and manufacturing processes.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of active pharmaceutical ingredients (APIs), particularly for drugs targeting specific receptor sites.
• Agrochemical Synthesis: Used in the research and production of novel herbicides, fungicides, and plant growth regulators.
• Chemical Research & Development: A versatile reagent for constructing complex organic molecules in medicinal and synthetic chemistry.
• Dye and Pigment Intermediate: Serves as a precursor in the manufacture of specialized dyes and functional colorants.
• Material Science: Potential monomer or modifier for creating polymers with specific sulfonyl or aromatic properties.

Basic Information

Item	Detail
Product Name	[3-(Chlorosulfonyl)-4-Methoxyphenyl]Acetic Acid (Saltdata: Free)
CAS No.	104967-35-3
Molecular Formula	C9H9ClO5S
Molecular Weight	264.68 g/mol
Synonyms	2-[3-(Chlorosulfonyl)-4-methoxyphenyl]acetic Acid; (3-Chlorosulfonyl-4-methoxyphenyl)acetic Acid; 4-Methoxy-3-sulfonylchloridephenylacetic Acid; 104967-35-3; 3-Chlorosulfonyl-4-methoxybenzeneacetic Acid; 2-(3-Chlorosulfonyl-4-methoxyphenyl)ethanoic Acid
EINECS	Contact for details

Quality Control

Our [3-(Chlorosulfonyl)-4-Methoxyphenyl]Acetic Acid is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation by IR and NMR, to ensure it meets the high standards required for pharmaceutical and research applications. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee traceability and compliance.

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 sealed to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Conforms to reference
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm

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