Isononanoic Acid

High-Purity Branched C9 Acid for Lubricants, Coatings and Metalworking Fluids

CAS 3302-10-1

Also known as: 3,5,5-Trimethylhexanoic acid, INA

Isononanoic Acid (INA) is a branched C9 carboxylic acid used in polyol ester lubricants, metalworking and coolant systems, paint driers, alkyd resins, and specialty chemical intermediates.

Why Isononanoic Acid

  • High-purity branched C9 acid for lubricant ester synthesis
  • Low color and low moisture profile support formulation consistency
  • Suitable for paint driers, coolants, alkyd resins, acid chlorides, and cosmetic intermediates
Isononanoic Acid, Branched Carboxylic Acids (CAS 3302-10-1)

Technical Data

Chemical Properties

Molecular Formula C9H18O2
Molecular Weight 158.238 g/mol
Acid Value >=350 mg KOH/g
Purity >=99.5%
Color (Pt/Co) <=10
Density 0.901 g/cm3 at 20°C
Boiling Point 243.3°C at 760 mmHg
Flash Point 125°C
Refractive Index 1.438 n(20°C/D)
Moisture <=0.1 wt%
Isononanoic Acid molecular structure
Molecular structure

Typical chemical properties for product identification and formulation planning.

Functions

  • Acid intermediate
  • Corrosion inhibitor
  • Lubricant ester precursor

Applications

Typical Applications

Lubricants & Metalworking

Used for polyol ester synthetic lubricants and coolant corrosion-inhibitor systems.

Coatings, Resins & Paints

Used in paint driers and alkyd resin systems.

Industrial Intermediates

Used as a carboxylic-acid intermediate for acid chlorides and cosmetic ingredients.

Product Family

Related in Branched Carboxylic Acids

Technical Documents

Documentation

Document request status

TDS Technical Data Sheet Available
SDS Safety Data Sheet On request
COA Certificate of Analysis On request

Logistics

Packaging & Storage

Packaging options

  • 185 kg drum
  • 900 kg IBC tote
  • Bulk Flexitank
  • Bulk ISO tank

Storage

Keep containers tightly closed in a cool, dry, well-ventilated place. Protect from direct sunlight and keep away from food and strong oxidizing agents.

FAQ

Frequently asked questions

What makes Isononanoic Acid different from 2-EHA?

INA is a C9 branched acid, while 2-EHA is a C8 branched acid. INA is used in lubricant ester, coating, and industrial-intermediate applications.

What is the typical purity of your Isononanoic Acid?

Isononanoic Acid has a purity of at least 99.5 wt% and an acid value of at least 350 mg KOH/g.

Is Isononanoic Acid compatible with metalworking fluid formulations?

INA-derived esters are used in metalworking coolant and lubricant formulations where corrosion inhibition and lubricity are required.

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