Ethyl Maltol is an organic compound which is often used as flavor enhancer.
Chemical formula: C₇H₈O₃
Molecular weight: 140.14 g/mol
Code
GBI3005-Code of additives under the standard of P.R.C
INS637-International code system
FEMA3487-Flavor and Extract Manufactures Association
HS: 2932999099
CAS NO: 4949-11-8
Properties
A white crystalline powder with a sweet smell which is often described as caramelized sugar and sweet fruit in dilute solution.
1g of Ethyl Maltol dissolves in 55ml of water; 10ml of Ethanol;17ml of Propylene Glycol and 5ml of Chloroform.
Melting point: 90℃
Quality Standard
Complied with national quality standard of P.R.C GB12487-2010 and USA FCC-IV
Application 
Ethyl Maltol is a safe, nontoxic and widely used aromatic food additive. Only a small amount is needed to achieve a significant effect. It is a sweetening, synergistic agent which is widely used in food industry, tabacco industry and cosmetics industry. It has a remarkable effect on improving and enhancing the flavor of food, and it also increases the sweetness of certain food. Ethyl Maltol also could effectively extend the food expiration date. 
Reference Usage 
Soft drinks: 1.5-6 mg/L
Ice cream, frozen products and ketchup: 5-15 mg/kg
Chocolate, candy and dessert: 5-50 mg/kg