Description

Isononanoic Acid CAS NO 26896-18-4 is a versatile, branched-chain C9 fatty acid valued for its excellent stability and hydrophobic properties. It serves as a crucial intermediate and performance additive across multiple high-value industrial sectors. This product is essential for manufacturers in the polymer, lubricant, and personal care industries seeking to enhance product durability and functionality.

Application

• Polymer Industry: As a monomer for producing high-performance alkyd resins, polyol esters for lubricants, and vinyl ester resins.
• Lubricants & Metalworking Fluids: Key component in the synthesis of synthetic ester base oils and additives, offering excellent thermal stability and low-temperature performance.
• Personal Care & Cosmetics: Used in the manufacture of emollients, emulsifiers, and as a precursor for specialty esters that improve skin feel and product spreadability.
• Coatings & Inks: Imparts flexibility, hydrolysis resistance, and improved weathering to coating formulations.
• Plasticizers: Employed in the production of specialty plasticizers for PVC and other polymers.
• Chemical Synthesis: A valuable building block for agrochemicals, pharmaceuticals, and other fine chemicals.

Basic Information

Product Name	Isononanoic Acid
CAS No.	26896-18-4
Molecular Formula	C9H18O2
Molecular Weight	158.24 g/mol
Synonyms	3,5,5-Trimethylhexanoic Acid; Iso-Nonanoic Acid; Isononylic Acid; 3,5,5-Trimethyl Caproic Acid; C9 Fatty Acid, Branched; Heptane-3,5,5-trimethyl-, carboxylic acid
EINECS	248-093-9

Quality Control

Our Isononanoic Acid is produced under a stringent quality management system. Every batch undergoes comprehensive analytical testing to ensure it meets precise specifications for purity, acidity, and physical properties. Certificates of Analysis (COA) are provided with each shipment, and we support compliance with relevant global regulatory frameworks including REACH.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from heat sources and incompatible materials such as strong bases and oxidizing agents. Due to its nature as a strong acid/organic solvent and being easily oxidized, it is recommended to store under an inert atmosphere for long-term preservation. Keep container tightly sealed when not in use.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 98.0 %
Acid Value	345 - 355 mg KOH/g
Color (APHA)	≤ 30
Water Content (KF)	≤ 0.1 %
Refractive Index (20°C)	1.428 - 1.432
Density (20°C)	0.90 - 0.92 g/cm³

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