top note green
2-Octen-4-one
Also known as: Butyl propenyl ketone, Oct-2-en-4-one, Propenyl butyl ketone, Strawbinone
IFRA Restriction
This is the maximum allowed percentage of this material in the total finished product, not in the fragrance concentrate.
For example, if a fine fragrance (Category 4A) contains 20% fragrance oil, and IFRA allows 10% of this material, the material can be up to 50% of the fragrance concentrate (10% ÷ 20% = 50%).
CAS 4643-27-0