2-tert-Butylhydroquinone

At a glance

2‑tert‑Butylhydroquinone is a synthetic phenolic antioxidant derived from hydroquinone; in perfumery it is used as a fixative to slow evaporation and improve stability.

Category
⚗️ Synthetic
Origin
synthetic (derived from hydroquinone)
Extraction
Chemical synthesis
Chemical family
Ketone
CAS number
1948-33-0
IFRA status
Restricted -- max 0.10% in Category 4
● drafted · last checked 2026-09-01