Cooling Agent WS-3 Industry-Standard Cooling Agent
Product Overview
What Is Cooling Agent WS-3?
Cooling Agent WS-3 is the benchmark synthetic cooling agent of the WS series. Its chemical name is N-Ethyl-p-menthane-3-carboxamide, and most buyers also know it as Koolada WS-3 or menthyl carboxamide. Because it reached the market first, formulators measure later grades against it.
First, WS-3 brings a clean, balanced cooling that spreads across the whole mouth and the throat. Therefore, it feels natural rather than sharp. Second, it carries FEMA number 3455 and CAS number 39711-79-0. As a result, it fits food, oral-care and cosmetic programs with full regulatory backing.
Third, WS-3 activates the TRPM8 cold receptor in a steady, sustained way. In other words, the coolness builds slowly and then holds. Moreover, it leaves no burn, no numbness and no harsh edge. Consequently, formulators treat it as the safest default when they need reliable cooling.
Technical Specifications
| Item | Specification |
| Product Name (EN) | Cooling Agent WS-3 |
| Chemical Name | N-Ethyl-p-menthane-3-carboxamide |
| Synonyms | WS-3; Koolada WS-3; Menthyl Carboxamide; N-Ethyl-2-isopropyl-5-methylcyclohexanecarboxamide |
| CAS Number | 39711-79-0 |
| FEMA Number | 3455 |
| EINECS Number | 254-599-0 |
| Molecular Formula | C13H25NO |
| Molecular Weight | 211.34 g/mol |
| Appearance | White to off-white crystalline powder |
| Odor | Mild cooling, slight menthol odor, almost odorless |
| Assay (Purity) | >= 99.0% (GC) |
| Cooling Character | Balanced, clean, long-lasting cooling across the mouth and throat |
| Cooling Strength | ~1.5 (menthol = 1) |
| Cooling Duration | 15 – 30 minutes |
| Melting Point | 87 – 102 °C |
| Boiling Point | ~340 °C at 760 mmHg |
| Flash Point | > 100 °C (closed cup) |
| Specific Rotation | -49 deg to -54 deg |
| Solubility | Practically insoluble in water (< 0.1% at 20 C); soluble in ethanol, propylene glycol and oils |
| Heat Stability | Stable up to 200 °C |
| Recommended Dosage | Beverage 1-10 mg/kg; confectionery 15-150 mg/kg; chewing gum 500-2000 mg/kg; toothpaste 100-1000 mg/kg; mouthwash 5-200 mg/kg; creams 500-5000 mg/kg |
| 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
Oral Care & Toothpaste Applications
WS-3 is the classic oral-care coolant, and its hold survives the whole brush. Therefore, it works well in:
- Toothpaste and whitening gel
- Mouthwash and breath freshener
- Breath strips and oral sprays
- Dental floss and interdental products
- Lozenges and throat pastilles
- Tongue cleaners and oral rinses
Beverage & Dairy Applications
At low dose, WS-3 adds a clean fresh note without changing the flavor. Formulators add it to:
- Still and sparkling soft drinks
- Fruit juice and juice drinks
- Dairy drinks and flavored milk
- Yogurt and fermented beverages
- Iced tea and ready-to-drink coffee
- Alcoholic beverages and ready-to-mix spirits
Confectionery & Chewing Gum Applications
The long plateau also reads clearly in sugar systems. WS-3 suits:
- Chewing gum and bubble gum
- Hard candy and pressed tablets
- Chocolate and compound coating
- Gummies and jelly candy
- Lozenges and breath mints
- Fondant and chewy candy
Cosmetics, Pharma & Personal Care Applications
WS-3 also cools skin and topical products. It fits:
- Skin cream and after-sun lotion
- Shaving gel and aftershave
- Shampoo and body wash
- Lip balm and lipstick
- Cooling patches and liniment
- Throat and oral-care pharmaceuticals
Company Introduction
Shaanxi Baisifu Biological Engineering Co., Ltd. started operations in December 2019 with registered capital of RMB 3 million.
The company develops, produces and sells food ingredients, flavors and cooling agents. Our Cooling Agents Division manages the WS-series portfolio, including WS-3, WS-5, WS-10, WS-12, WS-23 and WS-27. Our office sits at No. 52, Jinye First Road, Yanta District, Xi’an.
Our partner production plant spans more than 1,000 mu and runs modern extraction, synthesis and blending equipment. In addition, a GMP clean workshop supports every production run.
Our laboratory works to ISO 17025 standards. It runs a wide test range, including UPLC, HPLC, UV, GC, GC-MS and ICP-MS.
These facilities carry our work from product development through to finished-product inspection. As a result, every shipment leaves our plant with documented purity and consistent cooling performance.
Need specifications, COA, or a wholesale quote? Contact Us — typical response within 24 hours.