Isononyl Isononanoate
Appearance: Transparent liquid
Application: Skincare products, color cosmetics, foundations, and haircare products.
Isononyl Isononanoate is a luxurious ester widely incorporated in high-end skincare and cosmetic formulations. This clear, lightweight liquid is celebrated for its exceptionally silky, non-greasy texture and superior skin-feel properties. As an ultra-refined emollient, it imparts an instant velvety smoothness to the skin while improving product spreadability. Its fast-absorbing nature makes it particularly valuable in serums, moisturizers, and sunscreens, where it enhances application without leaving any heavy residue. The ester’s unique dry-touch finish also makes it a preferred choice for matte foundations, primers, and BB creams, providing flawless coverage with a comfortable, breathable feel.
| Property | Details |
| Chemical Name | Isononyl Isononanoate |
| CAS Number | 42131-25-9 |
| Molecular Formula | C18H36O2 |
| Appearance | Transparent liquid |
| Relative Density (25°C) | 0.835-0.865 |
| Refractive Index (25°C) | 1.4320-1.4410 |
| Acid Value (mg KOH/g) | ≤0.3 |
| Saponification Value (mg KOH/g) | 185-205 |
| Storage | Store in a cool, dry place, away from sunlight |
| Shelf Life | 1 years under proper storage conditions |
