Isophorone

Isophorone in plain language

What it is

Also known as 3,5,5-Trimethylcyclohex-2-enone (Isophorone) · .alpha.-isophoron · .alpha.-isophorone · 1,3,3-TRIMETHYLCYLOHEXEN-5-ONE · 3,5,5-Trimethylcyclohex-2-en-1-one · Isoacetophoron

Show all 25 names

Isophoron · 1,1,3-Trimethyl-3-cyclohexene-5-one · 1,5,5-Trimethyl-3-oxocyclohexene · 1,5,5-Trimethylcyclohexen-3-one · 1-Cyclohexen-3-one, 1,5,5-trimethyl- · 2-Cyclohexen-1-one, 3,5,5-trimethyl- · 3,5,5-Trimethyl-2-cyclohexen-1-on · 3,5,5-Trimethyl-2-cyclohexen-1-one · 3,5,5-Trimethyl-2-cyclohexene-1-one · 3,5,5-Trimethyl-2-cyclohexenone · 3,5,5-Trimethyl-cyclohex-2-enone · 3,5,5-Trimetil-2-cicloesen-1-one · Isoacetophorone · Isoforon · Isoforone · Isooctopherone · Izoforon · NCI-C55618 · isophorone (sara iii)

What it does

Used in consumer products as a solvent, a fragrance ingredient and a flavouring.

• Solvent
• Fragrance
• Flavouring

Is it a concern?

Critical concern: classified for carcinogenic, mutagenic or reproductive toxicity (CMR). It is banned in EU cosmetics.

Why it's flagged

• Cmr

3,5,5-Trimethylcyclohex-2-enone (Isophorone) is prohibited in cosmetic products under Annex II of the EU Cosmetics Regulation (EC) 1223/2009.

RestrictedEU EC — banned

The score describes this ingredient's chemical identity — its hazard profile from published classifications and regulatory status — not the safety of any product it appears in.

• EU Annex II — prohibited
• EU prohibited in cosmetics

• EU·EC

  Annex II of EU Cosmetics Regulation (EC) 1223/2009: substances prohibited in cosmetic products. CMR: Carcinogenic Cat. 2(when C=>1%)

  banned
  View source →

• EU·CosIng·ActiveCosmetics Regulation annex II / ref 1101.

  • Cosmetics Regulation annex II / ref 1101.Source →
• US·EPA·commercial use observedEPA CPDat observed this chemical in 180 composition records across product categories including Home maintenance, Laboratory supplies, Raw materials. EPA CPDat classifies this chemical for functional uses including Flavouring and nutrient, white paint - isophorone, Fragrance.

  • EPA CPDat observed this chemical in 180 composition records across product categories including Home maintenance, Laboratory supplies, Raw materials. EPA CPDat classifies this chemical for functional uses including Flavouring and nutrient, white paint - isophorone, Fragrance.Source →
• US·FDA·listed in openFDA substanceopenFDA substance registry classifies this ingredient as chemical.

  • openFDA substance registry classifies this ingredient as chemical.Source →

Expert safety opinions

No expert opinion on file for Isophorone. These are the independent scientific bodies that assess ingredients like this one; we show an opinion only when a record we hold cites it.

• SCCS

  EU Scientific Committee on Consumer Safety

  No SCCS opinion on file.

• CIR

  Cosmetic Ingredient Review (US expert panel)

  No CIR safety assessment on file.