Description

1-(2-Methoxyethyl)-1H-Pyrazole-4-Sulfonyl Chloride is a high-purity sulfonyl chloride derivative, a crucial reactive intermediate in modern synthetic chemistry. Its primary value lies in its role as a versatile sulfonylation reagent, enabling the efficient introduction of the sulfonyl functional group into target molecules. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries, particularly for developing novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of active pharmaceutical ingredients (APIs), especially in the development of sulfonamide-based drugs.
• Agrochemical Synthesis: Used in the production of advanced herbicides, fungicides, and insecticides where the sulfonyl moiety impributes specific biological activity.
• Material Science Research: Serves as a precursor for creating functional polymers, dyes, and liquid crystals with tailored properties.
• Chemical Biology & Proteomics: Employed as a reactive handle for labeling and modifying biomolecules in probe development and activity-based protein profiling.
• Custom Synthesis & Contract Manufacturing: A critical reagent for custom synthesis houses and CDMOs (Contract Development and Manufacturing Organizations) serving the life sciences sector.

Basic Information

Item	Details
Product Name	1-(2-Methoxyethyl)-1H-Pyrazole-4-Sulfonyl Chloride
CAS No.	1183082-06-5
Molecular Formula	C6H9ClN2O3S
Molecular Weight	224.66 g/mol
Synonyms	1-(2-Methoxyethyl)-1H-pyrazole-4-sulfonyl chloride; 1H-Pyrazole-4-sulfonyl chloride, 1-(2-methoxyethyl)-; 1-(2-Methoxyethyl)-4-(chlorosulfonyl)-1H-pyrazole; 4-(Chlorosulfonyl)-1-(2-methoxyethyl)-1H-pyrazole; Pyrazole-4-sulfonyl chloride derivative
EINECS	Contact for details

Quality Control

Our 1-(2-Methoxyethyl)-1H-Pyrazole-4-Sulfonyl Chloride is manufactured under strict quality control protocols to ensure batch-to-batch consistency and high purity suitable for research and commercial synthesis. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing key parameters such as assay, identity, and impurity profiles. Our quality system is designed to meet the stringent requirements of GMP and ISO standards as applicable for advanced intermediates.

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). This product is hygroscopic (moisture-sensitive) and must be kept under an inert atmosphere (e.g., nitrogen or argon) in its original packaging to prevent degradation. Keep away from heat, sparks, open flames, and incompatible materials such as strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Related Substances (HPLC)	Total impurities ≤ 2.0%

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