Cooling Agents WS-3
Cooling agent WS-3 (as known as Koolada 3, N-Ethyl-p-menthane-3-carboxamide) is a synthetic compound used to provide a cooling sensation in various consumer products. It offers a cooling effect of 1.5 and lasts up to 6 minutes.
It is valued for its mild, pleasant, and long-lasting cooling properties, making it a versatile ingredient in many consumer products.
WS-3 has KOSHER ,HALAL,REACH ready.
Substance Identification
| Synonyms | N-Ethyl-p-menthane-3-carboxamide |
| CAS | 39711-79-0 |
| EINECS | 254-599-0 |
| FEMA | 3455 |
| HS.CODE | 292429 |
| Molecular Formula | C13H25NO |
| Moleclar Weight | 211.34 |
Application & Uses
- WS-3 is widely used across a variety of products, including oral care formulations (such as toothpaste and mouthwash), cosmetics (creams and lotions), food and beverages, pharmaceuticals, and personal care products (including shampoos and conditioners).
- For use in beverages and mouthwash, WS-3 should first be dissolved in propylene glycol, after which solubilisers such as Tween or Span should be added to ensure proper dispersion. In e-liquid formulations, WS-3 is often blended with WS-23 to deliver a balanced and long-lasting cooling sensation.
- At higher concentrations, a small amount of sweetener may be added to offset bitterness. When used together with peppermint oil, WS-3 produces a more pronounced, refreshing, and enduring cooling aroma.
Features & Benefits
- WS-3 offers a subtle menthol flavour, with a strong and enduring cooling sensation characterised by a slow, steady release of icy coolness and gentle notes of camphor and mint. Its cooling intensity is 1.5 times greater than that of menthol, and its effect lasts for 20 to 30 minutes. Like menthol, it presents a slight bitterness.
- The cooling effect is primarily experienced in the throat, on the roof of the mouth, towards the back of the oral cavity, and at the rear of the tongue.
- WS-3 is generally recognised as safe (GRAS) for use in foods, cosmetics, and personal care products when applied within recommended concentrations. At 10–100 mg/kg, it activates the trigeminal nerve, providing a robust and long-lasting cooling sensation. The initial effect is mild but gradually develops into a stable, persistent coolness with subtle camphor and menthol undertones. It produces an immediate, clean cooling effect, and at an aroma concentration of 10%, it is almost odourless, showing only a faint alcoholic and cooling note. Its taste threshold is 200 ppb, as determined by resin-impregnated paper strips placed in the mouth.
| Recommended usage level | WS-3 | |
| min | max | |
| Fog-fluid | 2250 ppm | 22500 ppm |
| Beverage | 10 ppm | 100 ppm |
| Toothpaste | 1000 ppm | 10000 ppm |
| Mouthwash | 50 ppm | 2000 ppm |
| Hard candy | 150 ppm | 1500 ppm |
| Chewing gum | 5000 ppm | 20000 ppm |
| Creams & Lotions | 5000 ppm | 50000 ppm |
Sales Specification
| ITEM | VALUE | TEST METHOD & UNIT |
|---|---|---|
| Cooling Strength | 1.5 | @Menthol was set as 1 as a reference |
| Cooling Longevity | 6 | minutes |
| ITEM | VALUE | TEST METHOD & UNIT |
|---|---|---|
| Cooling Strength | 4 | @Menthol was set as 1 as a reference |
| Cooling Longevity | 10 | minutes |
| ITEM | VALUE | TEST METHOD & UNIT |
|---|---|---|
| Cooling Strength | 4.5 | @Menthol was set as 1 as a reference |
| Cooling Longevity | 12 | minutes |
| ITEM | VALUE | TEST METHOD & UNIT |
|---|---|---|
| Cooling Strength | 3.5 | @Menthol was set as 1 as a reference |
| Cooling Longevity | 36 | minutes |
| ITEM | VALUE | TEST METHOD & UNIT |
|---|---|---|
| Cooling Strength | 0.75 | @Menthol was set as 1 as a reference |
| Cooling Longevity | 8 | minutes |
GHS Hazard Statements
Storage
- Flammable materials should be stored in a separate safety storage cabinet or room
- Ground all equipment containing material
- Keep away from heat
- Keep away from sources of ignition
- Keep container tightly closed
- Keep in a cool, well-ventilated place
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Remark
The above information is believed to be accurate and presents the best explanation currently available to us. We assume no liability resulting from above content. The technical standards are formulated and revised by customers’ requirement and us, if there are any changes, the latest specification will be executed and confirmed in the contract.
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