Description

2,2-Dimethyl-2,3-Dihydro-1-Benzofuran-5-Sulfonyl Chloride is a high-purity, reactive sulfonyl chloride derivative, serving as a critical building block in advanced organic synthesis. Its core value lies in its ability to introduce the sulfonyl functional group, enabling the creation of sulfonamides and other complex molecules with precision. This compound is essential for researchers and manufacturers in the pharmaceutical and agrochemical industries, particularly for developing active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of novel drug candidates, especially for creating sulfonamide-based therapeutics.
• Agrochemical Synthesis: Used in the development of advanced herbicides, fungicides, and pesticides requiring specific sulfonyl group chemistry.
• Material Science Research: Employed in the creation of specialty polymers and functional materials where the benzofuran-sulfonyl moiety imparts desired properties.
• Chemical Biology & Proteomics: Acts as a reactive handle for labeling or modifying biomolecules in research applications.
• Custom Synthesis & Contract Manufacturing: A vital starting material for custom synthesis projects requiring high-purity, specialized intermediates.

Basic Information

Product Name	2,2-Dimethyl-2,3-Dihydro-1-Benzofuran-5-Sulfonyl Chloride
CAS No.	118351-97-6
Molecular Formula	C10H11ClO3S
Molecular Weight	246.71 g/mol
Synonyms	5-(Chlorosulfonyl)-2,2-dimethyl-2,3-dihydro-1-benzofuran; 2,2-Dimethyl-2,3-dihydrobenzofuran-5-sulfonyl chloride; 2,3-Dihydro-2,2-dimethyl-5-benzofuransulfonyl chloride; Dihydrobenzofuransulfonyl chloride; 118351-97-6; Benzofuran-5-sulfonyl chloride, 2,3-dihydro-2,2-dimethyl-; 2,2-Dimethyldihydrobenzofuran-5-sulfonyl chloride
EINECS	Contact for details

Quality Control

Our 2,2-Dimethyl-2,3-Dihydro-1-Benzofuran-5-Sulfonyl Chloride is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and IR spectroscopy, to ensure high chemical purity and identity. Certificates of Analysis (COA) documenting all specifications are provided to guarantee batch-to-batch consistency and support your regulatory requirements.

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 decomposition. Keep away from strong bases and oxidizing agents.

Specification

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