Calone®

Uses in perfumery :

Calone® is used in fresh, floral, white flower, spring and marine notes.

Year of discovery :

Discovered in 1966 by Pfizer company. Patent N°3,517,031 (US) published on Aug. 15, 1966 by Beeredoo.J, Old Lyme, Cameron.P, Stephens.C for Pfizer&Co.,Inc. Calone® brand has been published and protected by Firmenich SA since 28/08/1980

Natural availability :

Calone® is not available in its natural state.

Isomerism :

Calone® does not have any isomer used in perfumery.

Synthesis precursor :

Calone® is not a precursor to the synthesis of another compound of olfactory interest.

Synthesis route :

Calone® is synthesized in several stages. The first one is an esterification of 4-methyl pyrocatechol with two equivalents of alkyl 2-bromoacetate. The resulting molecule undergoes a Diekmann condensation followed by an acid hydrolysis and a decarboxylation to obtain the final product.

Stability :

Tends to get coloured under heat. Its smell can also change through an alcoholic maceration time.

Other comments :

The olfactory perception threshold of Calone® is equivalent to 31 picograms / litre, that is to say a grain of salt in an Olympic pool. However, it is less powerful than Azurone®, another molecule with a marine smell.
Calone® was the initiator of the aquatic scents trend during the 90's, embodying a trend of perfumes far from the skin and closer to nature.
Its production is around 30 tons / year.

Allergens :

This ingredient does not contain any allergen.

Signal word :

Warning

Hazard pictograms :

Precautionary statements :

IFRA 51^th :

This ingredient is not restricted for the 51th amendment