Description

4-Chlorosulfonylphenylpivalate is a specialized organic intermediate featuring both a reactive chlorosulfonyl group and a sterically hindered pivalate ester. This compound matters for its role as a key building block in the synthesis of more complex molecules, particularly in pharmaceutical and agrochemical research where it can be used to introduce sulfonamide or sulfonate functionalities. Industries that need it include fine chemical manufacturers, pharmaceutical R&D labs, and agrochemical companies developing new active ingredients.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly those containing sulfonamide groups.
• Agrochemical Synthesis: Used in the research and development of novel herbicides, fungicides, and insecticides.
• Dye and Pigment Manufacturing: Serves as an intermediate for producing sulfonated dyes and specialty colorants.
• Polymer Modification: Can be utilized to introduce functional groups into polymer chains for enhanced properties.
• Chemical Research & Development: A valuable building block for medicinal chemistry and material science explorations.
• Liquid Crystal & OLED Material Synthesis: Potential intermediate in the creation of advanced electronic and display materials.

Basic Information

Product Name	4-Chlorosulfonylphenylpivalate
CAS No.	150374-99-5
Molecular Formula	C11H13ClO4S
Molecular Weight	276.74 g/mol
Synonyms	Pivalic Acid 4-(Chlorosulfonyl)phenyl Ester; 4-(Chlorosulfonyl)phenyl Pivalate; 4-Chlorosulfonylphenyl 2,2-Dimethylpropanoate; Benzenesulfonyl chloride, 4-(2,2-dimethyl-1-oxopropoxy)-; 4-(Pivaloyloxy)benzenesulfonyl chloride; 4-(Tert-butoxycarbonyloxy)benzenesulfonyl chloride (related); p-(Chlorosulfonyl)phenyl pivalate
EINECS	Contact for details

Quality Control

Our 4-Chlorosulfonylphenylpivalate is manufactured under strict quality control protocols to ensure batch-to-batch consistency and high purity. Production adheres to cGMP guidelines where applicable, and the material is characterized by modern analytical techniques including HPLC, GC, and NMR. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with each shipment to support your quality assurance and regulatory needs.

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). Keep away from strong acids, bases, and oxidizing agents. Due to the reactive chlorosulfonyl group, ensure the container is kept tightly sealed under an inert atmosphere if specified for long-term storage to prevent moisture ingress and decomposition.

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	≤ 0.5%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Single Unknown Impurity	≤ 0.5%

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