WS-23: The Undisputed Champion of Cooling Agents
When industry professionals discuss synthetic cooling agents, one name comes up more than any other: WS-23. With chemical designation 2-Isopropyl-N,2,3-trimethylbutyramide and CAS number 51115-67-4, WS-23 has become the default choice for formulators worldwide who need reliable, powerful, and clean cooling effects.
By The Numbers: WS-23's Market Position in 2026
WS-23 accounts for an estimated 45-55% of all synthetic cooling agent consumption globally. Over 500 metric tons are produced annually, with Baisifu ranking among the top 10 manufacturers by output volume.
Why WS-23 Wins Every Time
1. Speed of Onset
WS-23 delivers perceptible cooling within 1-3 seconds of contact with mucous membranes — faster than WS-3 (3-5 sec), WS-5 (5-8 sec), and significantly faster than natural menthol (5-10 sec). This immediacy is critical in products like gum and breath mints where consumers expect instant gratification.
2. Intensity
At equivalent concentrations, WS-23 produces a stronger cooling sensation than any other commercially available agent. This allows formulators to use lower dosages, reducing material costs while achieving target performance.
3. Clean Finish
Perhaps WS-23's most celebrated attribute: absolutely no bitterness. Many early-generation cooling compounds left unpleasant metallic or bitter aftertastes that ruined product palatability. WS-23 solved this problem completely — it cools cleanly from start to finish.
4. No Odor
Unlike menthol, WS-23 contributes essentially zero aroma to formulations. Your strawberry gum tastes like strawberry — not strawberry-plus-mint.
5. Solubility Versatility
WS-23 dissolves clearly in propylene glycol, ethanol, vegetable glycerin (for e-liquids), and most common cosmetic carrier systems. It won't cloud your formula or precipitate during storage.
WS-23 in the Food & Confectionery Industry
The candy, chewing gum, and confectionery sector is the single largest consumer of WS- globally. Applications include:
- Sugar-free gum — The dominant cooling agent in major brands' "extreme cool" variants
- Hard candies and mints — Breath-freshening products where immediate cooling is a core selling point
- Chocolate coatings — "iced chocolate" and cooling-chocolate concepts gaining traction in Asian markets
- Beverages — Energy drinks, flavored waters, and functional beverages seeking differentiation
WS-23 Technical Reference
| Chemical Name | 2-Isopropyl-N,2,3-trimethylbutyramide |
| CAS Number | 51115-67-4 |
| Molecular Formula | C11H21NO |
| Purity Available | 98% / 99% |
| Physical Form | White crystalline powder |
| Cooling Onset | 1-3 seconds |
Source Your WS-23 from Baisifu
Baisifu has manufactured WS-23 since 2014, serving customers in 30+ countries. We offer:
- Competitive factory-direct pricing
- Free samples (25g-100g) for qualified buyers
- Same-day COA and TDS delivery
- OEM/private label options available
