Description

4-Hydroxynonanoic Acid is a versatile medium-chain hydroxy fatty acid with a terminal carboxylic acid group and a hydroxyl group at the 4-position. This bifunctional structure makes it a valuable intermediate for synthesizing specialty polymers, lubricants, and fine chemicals. It is particularly relevant for manufacturers in the pharmaceutical, cosmetic, and specialty chemical industries seeking to develop novel compounds with specific functional properties.

Application

• Polymer & Resin Synthesis: As a monomer or co-monomer for producing biodegradable polyesters, polyamides, and other specialty polymers with tailored properties.
• Lubricant & Grease Formulation: Used in the synthesis of ester-based lubricants and additives that offer high thermal stability and low volatility.
• Pharmaceutical Intermediates: Serves as a key chiral building block in the synthesis of active pharmaceutical ingredients (APIs) and complex organic molecules.
• Cosmetic & Personal Care Ingredients: Employed in the production of emulsifiers, emollients, and surfactant derivatives for skincare formulations.
• Flavor & Fragrance Industry: Acts as a precursor for lactones and other aroma chemicals that contribute to creamy, fatty, or fruity notes.
• Agrochemical Intermediates: Utilized in the synthesis of certain herbicides, fungicides, and plant growth regulators.
• Research & Development: A valuable reagent for organic synthesis and chemical research in academic and industrial laboratories.

Basic Information

Product Name	4-Hydroxynonanoic Acid
CAS No.	7779-53-5
Molecular Formula	C9H18O3
Molecular Weight	174.24 g/mol
Synonyms	4-Hydroxypelargonic Acid; 4-Hydroxynonanoic Acid; Nonanoic acid, 4-hydroxy-; 4-Hydroxy-n-nonanoic acid; ω-Hydroxynonanoic acid (ambiguous); DL-4-Hydroxynonanoic acid; (±)-4-Hydroxynonanoic acid; 4-Hydroxycaproic acid (historical)
EINECS	231-915-8

Quality Control

Our 4-Hydroxynonanoic Acid is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing, including assay (HPLC), identification (IR), and impurity profiling, to ensure it meets the required specifications for your application. A Certificate of Analysis (COA) detailing all test results is provided with every shipment and is available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); ensure the container is sealed after each use to prevent absorption of atmospheric moisture, which may affect quality.

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
Water Content (KF)	≤ 1.0%
Heavy Metals (as Pb)	≤ 20 ppm

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