OlfactionaryIsobutyric acid
At a glance
Isobutyric acid (2‑methylpropanoic acid) is a synthetically produced short‑chain carboxylic acid with a sharp, sour, cheesy‑buttery note, used to add acidity and tang in perfumery.
Why synthetics aren't a downgrade — a different toolkit → · Why some materials get IFRA-restricted →