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Methyl diisopropyl propionamide
CAS Number
51115-67-4
EC Number
256-974-4
FEMA Number
FEMA 3804
Abbreviation
WS-23
What is Methyl diisopropyl propionamide?
Methyl diisopropyl propionamide (CAS 51115-67-4), known as WS-23, is a synthetic cooling agent delivering a clean sensation. FEMA 3804.
Where is Methyl diisopropyl propionamide used?
- Food and beverage: intense cooling at low use levels in chewing gum, mints and confectionery
- Oral care: toothpastes, mouthwashes and breath strips
- Personal care: lip balms, skin gels and after-sun products
- Home care: surface sprays and fabric conditioners
- It provides a non-menthol cooling effect without associated taste or odor.
Good to know: Allows formulators to reduce or replace menthol entirely. Preferred where a clean cooling effect is desired over a traditional mint flavor profile.
Commercial specifications
- White crystalline powder or liquid carrier solutions
Other Names (Synonyms)
2-Isopropyl-N,2,3-trimethylbutanamide|2-Isopropyl-N,2,3-trimethylbutyramide|N,2,3-trimethyl-2-propan-2-ylbutanamide|WS-23|N,2,3-Trimethyl-2-(1-methylethyl)butanamide|Trimethyl isopropyl butanamide|N,2,3-Trimethyl-2-isopropylbutanamide|Butanamide, N,2,3-trimethyl-2-(1-methylethyl)-
What are the physical properties of Methyl diisopropyl propionamide?
Melting Point 60 °C
Boiling Point 84 °C
Density 0.9419 (rough estimate)
Color White to Almost white
Odor at 25.00 % in dipropylene glycol. mild cooling mentholic minty
Form Solid
Vapor Pressure 0.3-0.32Pa at 25℃
Refractive Index 1.4621 (estimate)
Log P 2.5 at 25℃ and pH7
How is Methyl diisopropyl propionamide classified and handled safely? Learn More
Warning
GHS07· Irritant
Hazard Statements
H302 Harmful if swallowed
Precautionary Statements
P264 Wash … thoroughly after handling.
P270 Do not eat, drink or smoke when using this product.
P330 Rinse mouth.
P501 Dispose of contents/container in accordance with local regulations.
P301+P317 Get emergency medical help.
Which trade and regulatory codes apply to Methyl diisopropyl propionamide?
HS Code 29242990
Storage Class 11 - Combustible Solids
WGK (Germany) 3