Cooling Agent WS-10
WS-10 (Menthoxypropanediol) provides a long-lasting cooling effect (Strength 4.5) without the minty odor or taste associated with menthol (Strength 1) . It can be used in lower concentrations compared to menthol while achieving a similar cooling effect.
The WS series cooling agents supplied by our company have unique advantages in the supply chain. Welcome to purchase.
Substance Identification
| Synonyms | Menthoxypropanediol | N,2,3-Trimethyl-2-isopropylbutamide |
| CAS | 87061-04-9 |
| EINECS | 289-296-2 |
| FEMA | 3784 |
| HS.CODE | 292429 |
| Molecular Formula | C13H26O3 |
| Moleclar Weight | 230.34 |
Application & Uses
- WS-10 is commonly used across diverse categories, including oral care (toothpaste, mouthwash), cosmetics (creams, lotions), food & beverages, pharmaceuticals, personal care (shampoos, conditioners).
- In Vaseline ointments, delivers cooling intensity 2–2.5 times that of menthol.
- Provides balanced, comprehensive cooling suitable for oral care and cosmetics.
- Used medically in sprays such as sedatives and analgesics.
Features & Benefits
- WS-10 exhibits very low volatility with virtually no aroma; recommended food usage is 0.01%–0.005%.
- Provides intense cooling with a heavier taste profile, menthol-like olfactory notes, mild stimulation, and bitterness; at >50 mg/L, delivers long-lasting, distinctly menthol-like cooling.
- Features two alcohol hydroxyl groups for improved water solubility (though not fully water-soluble) and good oil solubility; combines effectively with WS-3, WS-23, and menthyl lactate in solvent-free systems, ideal for daily fragrance formulations.
- WS-10 (refer to Takasago TK-10) threshold 1 ppm (20%–100% menthol equivalent), 100 ppm sustains 20–25 minutes cooling (twice menthol); WS-10 2S isomer 2–3× stronger than 2R, 1.5–2× stronger than racemic.
- Acts on oral cavity (front of tongue, palate, front of throat) and skin, lasting up to 12 minutes.
- Generally recognised as safe (GRAS) for food and cosmetics within recommended concentrations.
| Recommended usage level | WS-10 | |
| min | max | |
| Fog-fluid | 45 ppm | 900 ppm |
| Beverage | 0 ppm | 3 ppm |
| Toothpaste | 150 ppm | 1200 ppm |
| Mouthwash | 15 ppm | 300 ppm |
| Hard candy | 3 ppm | 60 ppm |
| Chewing gum | 45 ppm | 900 ppm |
| Creams & Lotions | 1500 ppm | 15000 ppm |
Sales Specification
| 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 | 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 | 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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The above information is believed to be accurate and represents the best explanation currently available to us. However, no liability is assumed for any consequences arising from the use of this content. The technical standards for our products are developed and updated jointly by our customers and ourselves; where any changes occur, the latest specification shall prevail and will be confirmed in the relevant contract.All suggestions and data provided are based on information we consider to be reliable and are offered in good faith, but without any guarantee, as the conditions and methods of use of our products are beyond our control. Foreverest® makes no warranties, whether express or implied, regarding the accuracy, completeness or suitability of this information, and expressly disclaims any implied warranty of fitness for a particular purpose. Prospective users should conduct their own tests and evaluations to determine the suitability of Foreverest® materials and any recommendations for their intended applications before adoption, and, where appropriate, should obtain confirmation or approval from the relevant regulatory authorities.Any references in this page to patents or patented technologies, including descriptive material derived from patents or citations of specific patent numbers, are provided for information only. They must not be interpreted as a recommendation to use our products in a manner that could infringe any third‑party patent, nor as a grant of any licence or permission to use patents owned by Foreverest®.
The above information is believed to be accurate and represents the best explanation currently available to us. However, no liability is assumed for any consequences arising from the use of this content. The technical standards for our products are developed and updated jointly by our customers and ourselves; where any changes occur, the latest specification shall prevail and will be confirmed in the relevant contract.All suggestions and data provided are based on information we consider to be reliable and are offered in good faith, but without any guarantee, as the conditions and methods of use of our products are beyond our control. Foreverest® makes no warranties, whether express or implied, regarding the accuracy, completeness or suitability of this information, and expressly disclaims any implied warranty of fitness for a particular purpose. Prospective users should conduct their own tests and evaluations to determine the suitability of Foreverest® materials and any recommendations for their intended applications before adoption, and, where appropriate, should obtain confirmation or approval from the relevant regulatory authorities.Any references in this page to patents or patented technologies, including descriptive material derived from patents or citations of specific patent numbers, are provided for information only. They must not be interpreted as a recommendation to use our products in a manner that could infringe any third‑party patent, nor as a grant of any licence or permission to use patents owned by Foreverest®.
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