A range, not a rigid answer.
Sparkling air, soap, hot iron, wax, citrus peel or clean linen depending on the material and formula.
Deeper sensory reference
Aldehydic
A texture/style word often pointing to bright, diffusive, abstract or polished effects associated with some aldehydes.
brightsoapymetalliclinen-like
Why a perfumer may use the effect.
Adds lift, abstraction, diffusion and polish.
Keep the evidence boundary visible.
Aldehydes are chemically diverse; the word is not one smell and does not mean ‘synthetic’ as a quality insult.
Words that change the way you read it.
Soap · citrus · floral · clean linen