Koolada 10 PG food grade flavour concentrate (TPA /TFA).
 
Koolada is used specifically to give that "cold" feeling at the back of the mouth. It does not really have a 'taste', but it can be used to enhance other flavours.
 
Water Soluble flavouring

Ingredients: 
Artificial Flavours, Propylene Glycol
 
CAS # 39711-79-0
FEMA # 3455
 
Food Grade Certificate.