Product Name: 2-Isopropyl-N,2,3-trimethylbutyramide

Synonyms: N,2,3-Trimethyl-2-isopropylbutamide; 2-Isopropyl-N,2,3-trimethylbutanamide; cooling agent WS-23; Cooling Sensate WS 23; N,2,3-Trimethyl-2-isopropylbutanamide; WS 23; WS-23; WS-23(coolingagent); WS-23(cooling agent); WS 23(cooling agent); FEMA 3804; methyldiisopropylpropionamide; N,2,3-trimethyl-2-isopropl butanamide; N-2,3-Trimethyl-2-isopropylbutanamide; N,2,3-trimethyl-2-(propan-2-yl)butanamide; N,2,3-Trimethyl-2-isopropylbutanamide,WS-23

CAS Number: 51115-67-4

EINECS Number: 256-974-4

FEMA Number: 3804

Molecular Formula: C10H21NO

Molecular Weight: 171.28

Brief Introduction:

2-Isopropyl-N,2,3-trimethylbutyramide, the synonyms are N,2,3-Trimethyl-2-isopropylbutamide and 2-Isopropyl-N,2,3-trimethylbutanamide, also known as cooling agent WS-23 in the market. The melting point is between 60℃ and 63℃, the flash point is 132℃, the boiling point is 233℃, the relative density is 0.854g/cm3, the refractive index is 1.431, it is a white crystalline solid with a cool mint-like smell. As a coolant, it is mainly used in candy, oral care, and medicine.

Preparation Method:

It uses the alkylation of propionitrile and 2-bromopropane to generate the intermediate 2,3-dimethyl-2-isopropylbutyronitrile, then the intermediate and methanol are synthesized in two steps through amidation to prepare WS-23 under the condition of concentrated sulfuric acid as catalyst.

Specifications of our N,2,3-Trimethyl-2-isopropylbutamide(Cooling Agent WS-23):

Colour and Appearance	White crystalline solid
Odour	Mint-like cooling flavour
Purity	Not less than 99.0%
Melting Point	60℃ ~ 63℃
Acid Value	Not more than 1.0
Heavy Metals(as Pb)	Not more than 10.0 mg/kg
Arsenic(As)	Not more than 3.0 mg/kg

Applications of WS-23:

Cooling agent WS-23 can be widely used in chewing gum, toothpaste, candy, jelly, jam, starch foods, dairy products, meat products, cigarettes, medicines and other products.

Usage Method of WS-23:

Cooling agent WS-23 can be pre-dissolved in alcohol, propylene glycol and other solvents, and then added to the aqueous solution; or it can be dissolved in essence first, and then added to the designated product.

*Reference Dosage: 30mg/kg ~ 100mg/kg.

Packaging of WS-23:

1kg/Aluminum Foil Bag, 5kg/Carton, 10kg/Carton, 25kg/Fibre Drum or according to the specific requirements from customers.

Storage Conditions:

Preserved in unopened original containers in a cool dry place before using; kept away from direct sunlight, heat and moisture.

Shelf Life:

36 months if stored under above mentioned conditions.