Skip to content
CarCareTruthProducts · Ranked

Tetramethyl Acetyl Octahydronaphthalenes (Iso E Super)

  • Fragrances
  • CAS 54464-57-2

Tetramethyl Acetyl Octahydronaphthalenes (Iso E Super) (CAS 54464-57-2) appears in 2 of the 1,812 car-care products CarCareTruth tracks (as of June 2026).

Generally low acute toxicity in finished products. EU allergen-list fragrance component — skin sensitization possible in predisposed users.

Tetramethyl acetyloctahydronaphthalenes (commonly known by the trade name "Iso E Super") is a synthetic woody-amber fragrance compound used as a base note in air fresheners and many modern perfumes. Persistent in aquatic environments — its frequent presence in scented consumer products is an environmental concern at population scale.

Health & environment profile

VOC
no
Prop 65 listed
no
Asthmagen
no
EPA Safer Choice
no
Aquatic toxicity
yes
Biodegradable
no
Bioaccumulative
yes
Persistent
yes
Ozone depleting
no
Microplastic
no
PFAS
no
Env. score
2/5
Purpose: Synthetic woody-amber fragrance compound; widely used in modern air fresheners and personal care for soft, dry-down scent

Common questions about Tetramethyl Acetyl Octahydronaphthalenes (Iso E Super)

What is Tetramethyl Acetyl Octahydronaphthalenes (Iso E Super) used for in car care?
Synthetic woody-amber fragrance compound; widely used in modern air fresheners and personal care for soft, dry-down scent
Is Tetramethyl Acetyl Octahydronaphthalenes (Iso E Super) a VOC?
No. Tetramethyl Acetyl Octahydronaphthalenes (Iso E Super) is not classified as a volatile organic compound (VOC).
Is Tetramethyl Acetyl Octahydronaphthalenes (Iso E Super) on California's Proposition 65 list?
No. Tetramethyl Acetyl Octahydronaphthalenes (Iso E Super) is not on California's Proposition 65 list.

2 products contain this

Related

Health and environment notes translate the manufacturer Safety Data Sheet, the GHS classification, and authoritative regulatory listings (California Prop 65, EPA). Not medical advice. They describe the ingredient itself; whether a hazard applies to a finished product depends on its concentration and how it's used.