Isophorone

PROHIBITION · CAP

CAS

78-59-1

—

Material type

other

Canonical source

document derived

Document-derived

IFRA restrictions

Prohibition · natural-source cap

The pure material is prohibited as a fragrance ingredient. Natural extracts containing it are permitted only while the concentration in the finished product stays at or below 0.0013%. This cap applies uniformly across all 18 IFRA categories.

“On the basis of established maximum concentration levels of this substance in commercially available natural sources (like essential oils and extracts), exposure to this substance from the use of these oils and extracts is not significant and the use of these oils is authorized as long as the level of Isophorone in the finished product does not exceed 0.0013%.”

Category	Kind	Max %	Notes	Source
Category 1	Prohibition · cap	0.0013%	See note above	DOC
Category 2	Prohibition · cap	0.0013%	See note above	DOC
Category 3	Prohibition · cap	0.0013%	See note above	DOC
Category 4	Prohibition · cap	0.0013%	See note above	DOC
Category 5A	Prohibition · cap	0.0013%	See note above	DOC
Category 5B	Prohibition · cap	0.0013%	See note above	DOC
Category 5C	Prohibition · cap	0.0013%	See note above	DOC
Category 5D	Prohibition · cap	0.0013%	See note above	DOC
Category 6	Prohibition · cap	0.0013%	See note above	DOC
Category 7A	Prohibition · cap	0.0013%	See note above	DOC
Category 7B	Prohibition · cap	0.0013%	See note above	DOC
Category 8	Prohibition · cap	0.0013%	See note above	DOC
Category 9	Prohibition · cap	0.0013%	See note above	DOC
Category 10A	Prohibition · cap	0.0013%	See note above	DOC
Category 10B	Prohibition · cap	0.0013%	See note above	DOC
Category 11A	Prohibition · cap	0.0013%	See note above	DOC
Category 11B	Prohibition · cap	0.0013%	See note above	DOC
Category 12	Prohibition · cap	0.0013%	See note above	DOC

Compliance-support only. Values resolved from the current IFRA corpus; each row cites the document excerpt it came from. Not a substitute for a qualified safety assessor.

IFRA Annex I

Found naturally in

Natural complex substances (NCSs) in which this material typically occurs.

NCS	Botanical	Typical %
Saffron	Crocus sativus L.	0.2%
Cistus absolute	Cistus ladaniferus L.	0.2%

Identity

Aliases · 7

2-Cyclohexen-1-one, 3,5,5-trimethyl-3,5,5-Trimethyl-2-cyclohexen-1-one78-59-1Isophorone2-Cyclohexen-1-one, 3,5,5-trimethyl-3,5,5-Trimethyl-2-cyclohexen-1-oneIsoacetophorone

Compliance note. Restriction data is sourced directly from IFRA publications and preserved with its document excerpt. Perfumefoundry is a compliance-support tool — not a substitute for a qualified safety assessor (CPSR / PIF).