Maltol is a naturally occurring organic compound that is primarily used as flavor enhancer.
Chemical formula: C₆H₆O₃
Molecular weight: 126.11 g/mol
Code
GBI1108-Code of additives under the standard of P.R.C
INS636-International code system
FEMA2656-Flavor and Extract Manufactures Association
HS: 2932999099
CAS NO: 118-71-8
Properties
A white crystalline powder smells like caramelized sugar and cotton candy. Its diluted solution has the aroma of strawberry. 
1g of Maltol dissolves in 80ml of water; 21ml of Ethanol; 80ml of Glycerin and 28ml of Propylene Glycol.
Quality Standard
Complied with national quality standard of P.R.C QB/T2642-2004 and USA FCC-IV
Application 
Maltol is a flavor enhancer extensively used in food, beverage, tobacco, brewery, cosmetics and pharmaceuticals industries.  When combined  with other substances, Maltol will increase and sustain their sweetness and fragrance. It is also used to formulated additives for food, cigarettes and cosmetics. 
Reference Usage 
Soft drinks: 4.1  mg/L
Ice cream, frozen products: 8.7 mg/kg
Bakery: 30 mg/kg
Pudding: 7.5 mg/kg
Jelly: 90 mg/kg
Fragrance intensifier: 50-250 mg/kg