Description

3-Butene-1-Sulfonyl Chloride is a highly reactive sulfonyl chloride derivative, serving as a crucial building block in advanced organic synthesis. Its value lies in its ability to introduce the versatile sulfonyl functional group into target molecules, enabling the creation of sulfonamides, sulfonate esters, and other complex intermediates. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries who require a reliable, high-purity reagent for constructing novel molecular architectures.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of active pharmaceutical ingredients (APIs), particularly in the development of sulfonamide-based drugs.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and insecticides where the sulfonyl moiety imparts specific biological activity.
• Polymer Chemistry: Acts as a monomer or cross-linking agent in the creation of specialty polymers with unique properties.
• Material Science: Employed in surface modification and the synthesis of advanced materials, including liquid crystals and functional coatings.
• Chemical Biology & Proteomics: Useful as a reactive handle for bioconjugation and labeling of biomolecules due to its selectivity towards amines and alcohols.
• Organic Synthesis Reagent: A versatile reagent for introducing sulfonyl groups in multi-step synthetic routes for complex natural products and fine chemicals.

Basic Information

Product Name	3-Butene-1-Sulfonyl Chloride
CAS No.	33994-36-4
Molecular Formula	C₄H₇ClO₂S
Molecular Weight	154.61 g/mol
Synonyms	3-Butenylsulfonyl chloride; 3-Butene-1-sulfonyl chloride; But-3-ene-1-sulfonyl chloride; Allylmethanesulfonyl chloride; 1-Butene-4-sulfonyl chloride; 4-Butene-1-sulfonyl chloride; 3-Butenyl sulfonyl chloride
EINECS	Contact for details

Quality Control

Our 3-Butene-1-Sulfonyl Chloride is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including chromatographic purity analysis and identity confirmation, to ensure it meets the high standards required for research and industrial synthesis. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment to guarantee traceability and consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at room temperature (15-25°C). Due to its hygroscopic and highly volatile nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) to prevent moisture absorption and decomposition. Keep away from strong bases, oxidizers, and sources of ignition.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%

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