Description

11-Heptylsulfonylundecanoic Acid is a high-purity, long-chain sulfonated fatty acid derivative, serving as a versatile and valuable intermediate in advanced organic synthesis. Its unique molecular structure, featuring a terminal carboxylic acid and a sulfonyl group separated by a long alkyl chain, makes it a critical building block for creating specialized surfactants, lubricant additives, and functional polymers. This compound is essential for R&D chemists and production specialists in the fine chemical, pharmaceutical, and specialty materials industries seeking to develop novel compounds with tailored surface-active or rheological properties.

Application

• Specialty Surfactant & Detergent Intermediate: Acts as a key precursor for synthesizing anionic surfactants with unique wetting, emulsifying, and foaming properties for industrial and institutional cleaning formulations.
• Lubricant & Fuel Additive Synthesis: Used to develop extreme pressure (EP) additives, friction modifiers, and dispersants that enhance the performance and longevity of automotive and industrial lubricants.
• Polymer Modification & Functional Monomer: Serves as a monomer or comonomer for producing polyesters, polyamides, and other polymers with built-in sulfonate groups, imparting hydrophilicity, dyeability, or antistatic properties.
• Pharmaceutical & Agrochemical Intermediates: Employed in the synthesis of bioactive molecules, where the sulfonyl and carboxylic acid functionalities are utilized for further chemical transformations to create potential active ingredients.
• Corrosion Inhibitor Formulation: Incorporated into coatings and treatment fluids as a component that provides protective film-forming characteristics on metal surfaces.
• Research & Development: A valuable tool in academic and industrial R&D for exploring new chemical entities, studying structure-activity relationships, and developing novel material science applications.

Basic Information

Product Name	11-Heptylsulfonylundecanoic Acid
CAS No.	5454-92-2
Molecular Formula	C18H36O4S
Molecular Weight	348.55 g/mol
Synonyms	Undecanoic acid, 11-(heptylsulfonyl)-; 11-(Heptylsulfonyl)undecanoic acid; Heptylsulfonylundecanoic acid; 11-Heptanesulfonylundecanoic acid; 11-(Heptanesulfonyl)undecanoic acid; Long-chain sulfonated fatty acid; C18 sulfonated fatty acid intermediate
EINECS	Contact for details

Quality Control

Our 11-Heptylsulfonylundecanoic Acid is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity, IR and NMR for structural confirmation, and tests for residual solvents and moisture content, to ensure it meets precise customer specifications. A detailed Certificate of Analysis (COA) documenting 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, well-ventilated area at a controlled room temperature (15-25°C). Keep away from strong oxidizing agents, strong bases, and heat sources. The container must be kept tightly sealed to minimize exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Melting Point	Contact for details
Loss on Drying	≤ 1.0%
Residual Solvents (GC)	Meets ICH guidelines

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