Vanillin 10 PG - TFA TFA/TPA $3.99 10ml - $3.99 30ml - $5.99 120ml - $14.99 250ml - $23.99 Quantity This variant is currently sold out Please fill in the form below if you'd like to be notified when it becomes available. Vanillin crystals dissolved in a 10% (Mixture) in Propylene Glycol. This is not a complete flavor on its own, but it can be a useful component for use in blending vanilla-infused flavors.Intensely sweet and very tenacious creamy vanilla odor.