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5-Nonen-2-One
5-Nonen-2-One
Low concern
5-Nonen-2-one is evaluated by JECFA and FEMA as a flavoring substance with no safety concern at typical use levels. Used at very low concentrations in finished food.
Found in
6 products
What it is
An unsaturated aliphatic ketone (CH3CO-CH2CH2-CH=CH-C3H7) used as a flavoring substance.
Synthetic flavoring substance imparting fruity/cheesy notes.
Why it's flagged
- no significant concern at flavoring use levels
What regulators actually say
"The Flavor and Extract Manufacturers Association (FEMA) Expert Panel evaluates the safety of flavoring substances under the FEMA GRAS program."
Regulatory status
United States — FDA
FEMA GRAS as a flavoring substance.
European Union — EFSA
Listed in EU flavoring substance database (FL-no 07.150 group).
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