Cooling Agent WS-5 | High-Impact Low-Dose Cooling
Product Overview
What Is Cooling Agent WS-5?
Cooling Agent WS-5 is a food-grade synthetic cooling agent. Its chemical name is N-((ethoxycarbonyl)methyl)-p-menthane-3-carboxamide, and many buyers also know it as Koolada WS-5. WS-5 became a staple of the WS series because it pairs high strength with a remarkably low dose.
First, WS-5 carries an ester-linked amide structure that the tongue reads as a smooth, deep cool. Therefore, it avoids the sharp bite that menthol brings. Second, it activates the TRPM8 cold receptor without the volatility of peppermint oil. As a result, the coolness stays in the product instead of flashing off during processing.
Third, WS-5 holds FEMA number 4309 and CAS number 68489-14-5. In addition, it carries JECFA number 1776. Consequently, it fits food, oral-care and cosmetic programs with no extra clearance.
Technical Specifications
| Item | Specification |
| Product Name (EN) | Cooling Agent WS-5 |
| Chemical Name | N-((Ethoxycarbonyl)methyl)-p-menthane-3-carboxamide |
| Synonyms | WS-5; Koolada WS-5; N-[(ethoxycarbonyl)methyl]-p-menthane-3-carboxamide; ethyl (1R,2S,5R)-2-isopropyl-5-methylcyclohexane-1-carbonylglycinate |
| CAS Number | 68489-14-5 |
| FEMA Number | 4309 |
| EINECS Number | Not Available (food-grade flavor, FEMA/GRAS listed) |
| JECFA Number | 1776 |
| Molecular Formula | C15H27NO3 |
| Molecular Weight | 269.38 g/mol |
| Appearance | White to off-white crystalline powder |
| Odor | Slight menthol odor, almost odorless |
| Taste | Smooth, strong cooling with no bitterness or burning |
| Assay (Purity) | >= 99.0% (HPLC) |
| Cooling Strength | ~2.5x menthol (1 = menthol) |
| Cooling Character | High strength, smooth, long-lasting, non-pungent |
| Melting Point | 80 – 82 °C |
| Boiling Point | 151 °C at 2 mmHg |
| Flash Point | 190 °C |
| Relative Density (20 °C) | 0.991 ± 0.06 g/cm3 |
| Partition Coefficient (LogP) | 2.73 at 20 °C, pH 7 |
| Solubility | Slightly soluble in water (0.7%, ~7 g/L at 20 °C); freely soluble in ethanol, propylene glycol and flavor oils |
| Cooling Duration | 15 – 30 minutes |
| Recommended Dosage | Beverage 0.1-1 mg/kg; confectionery 1-20 mg/kg; chewing gum 15-300 mg/kg; toothpaste 50-400 mg/kg; mouthwash 5-100 mg/kg; creams 500-5000 mg/kg |
| Heat Stability | Stable up to 200 °C |
| Category | Cooling Agents |
| Storage Conditions | Store in a cool, dry place. Keep away from direct light and heat. Close the package tightly after use. |
| Shelf Life | 24 months when stored properly |
Applications & Uses
Confectionery & Chewing Gum Applications
WS-5 gives confectionery a strong, lasting cool at a tiny dose. Therefore, it works especially well in:
- Chewing gum and bubble gum
- Hard candy, lozenges and breath mints
- Gummies, jelly candy and chewy candy
- Chocolate and compound coating
- Fondant, pressed tablets and fruit snacks
- Bakery and extruded snacks needing heat-stable cool
Beverage & Dairy Applications
The low dose also reads clearly in drinks. Formulators add WS-5 to:
- Still and sparkling soft drinks
- Fruit juice, iced tea and RTD coffee
- Dairy, yogurt and flavored milk
- Energy and sports drinks
- Alcoholic drinks and ready-to-mix spirits
Oral Care & Toothpaste Applications
Because the cool is smooth and non-bitter, oral care brands gain a clean signal. WS-5 suits:
- Toothpaste and whitening gel
- Mouthwash and breath freshener
- Breath strips and oral sprays
- Dental floss and interdental products
- Throat lozenges and soothing pastilles
Cosmetics & Personal Care Applications
WS-5 also brings a soothing cool to skin systems. It fits:
- Shampoo, body wash and shower gel
- Skin cream, lotion and after-sun
- Lip balm, sunscreen and aftershave
- Shaving cream and scalp toner
Certifications & Compliance
We can provide the following quality and product documents:
- ISO 9001:2015 — Quality Management System
- ISO 22000 — Food Safety Management
- GMP — GMP-aligned manufacturing facility
- HALAL — Certified batches available
- KOSHER — Certification available upon request
- COA / MSDS / TDS — Product documents available for each lot
- FEMA 4309 / JECFA 1776 — Flavor and food additive listings
- Non-Restricted Cargo — Standard export classification
- Third-party laboratory testing — SGS, Eurofins or your selected laboratory
Packing & Logistics
Standard Package
Powder: 1 kg / aluminium-foil bag; 25 kg / fiber drum.
Bulk: custom packing on request, including 5 kg, 10 kg and 25 kg formats.
Carton Dimensions
22 cm x 16 cm x 34 cm
Packaging Material
We pack WS-5 into food-grade aluminium-foil bags with an inner liner, and we place them inside strong cardboard cartons. Bulk lots go into fiber drums with sealed closures.
Sealing
We seal each package with three layers of tape winding and shock-resistant packing.
Net Weight
1 kg per standard aluminium-foil bag.
We offer custom package sizes such as 5 kg, 10 kg and 25 kg upon request.
Need specifications, COA, or a wholesale quote? Contact Us — typical response within 24 hours.