Description

Undecanoyl Chloride is a versatile C11 fatty acid chloride that serves as a critical building block in organic synthesis. Its high reactivity makes it an essential reagent for introducing the undecyl chain into target molecules, enabling the creation of specialized surfactants, lubricants, and pharmaceutical intermediates. This compound is particularly valuable for manufacturers in the agrochemical, polymer, and fine chemical industries seeking to develop products with specific hydrophobic properties and chain lengths.

Application

• Pharmaceutical Intermediate: Key starting material for the synthesis of active pharmaceutical ingredients (APIs) and prodrugs requiring an undecyl moiety.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and plant growth regulators where the C11 chain influences bioavailability and activity.
• Polymer Modification: Acts as a monomer or chain modifier in the production of polyamides, polyesters, and other specialty polymers to alter surface properties and flexibility.
• Surfactant & Detergent Manufacturing: Employed to synthesize undecyl-based anionic and nonionic surfactants for industrial and household cleaning formulations.
• Lubricant Additive Precursor: Intermediate for creating high-performance ester-based lubricants and additives that offer excellent thermal stability.
• Flavor & Fragrance Ingredient: Serves as a precursor for undecyl esters and other compounds used in the creation of specific aroma and flavor profiles.
• Organic Synthesis Reagent: A fundamental reagent for Friedel-Crafts acylation, esterification, and amidation reactions in research and development laboratories.
• Corrosion Inhibitor Formulation: Used in the synthesis of organic corrosion inhibitors for metal treatment processes in various industrial applications.

Basic Information

Product Name	Undecanoyl Chloride
CAS No.	17746-05-3
Molecular Formula	C11H21ClO
Molecular Weight	204.74 g/mol
Synonyms	Undecyl chloride; n-Undecanoyl chloride; Hendecanoyl chloride; 1-Chloro-1-oxoundecane; Undecanoic acid chloride; n-Undecanoic acid chloride; Undecylic acid chloride; Undecanoylchloride
EINECS	241-759-6

Quality Control

Our Undecanoyl Chloride is produced under stringent quality management systems. Each batch undergoes comprehensive analytical testing, including Gas Chromatography (GC) and titration methods, to ensure high purity and consistency. A Certificate of Analysis (COA) detailing assay, identity, and impurity profiles is provided with every shipment to guarantee compliance with your specific application requirements and industry standards.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at temperatures between 2°C and 8°C (refrigerated) to minimize degradation and hydrolysis. Due to its hygroscopic and highly volatile nature, containers must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) when not in use. Keep away from heat, sparks, open flames, and incompatible materials such as strong bases, alcohols, and water.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 98.0%
Acid Chloride Content	≥ 97.0%
Free Acid (as Undecanoic Acid)	≤ 1.5%
Water Content (KF)	≤ 0.1%
Density at 20°C	0.94 - 0.96 g/mL
Refractive Index (n20D)	1.440 - 1.445

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