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The woody family

In the 2010 version of the fragrance wheel, the Woody family has three subfamilies: Woods, Mossy Woods and Dry Woods. The examples given are aromatic woods and vetiver for Woods, oakmoss and amber for Mossy Woods, and dry woods and leather for Dry Woods. Commonly used woods in perfumery include sandalwood, rosewood, agarwood, birch, cedar, juniper and pine.

Velvet in woody materials

Iso Velvetone is one of several trade names of OTNE, a synthetic ketone fragrance that is also sold as Iso E Super. OTNE is a synthetic woody odorant and is used as a fragrance ingredient in perfumes, laundry products and cosmetics.

Chemistry and production

OTNE has the formula C₁₆H₂₆O and a molar mass of 234.38 g/mol. The commercial material is a mixture of more than twenty isomeric ketones, and it is made by a Diels-Alder reaction. It is a colourless to pale yellow liquid that boils at about 290 °C and melts below -20 °C.

Origin

Two chemists at a fragrance house created the compound in 1973, and the patent, granted in 1975, also described an enriched single-isomer version. The producer later shifted commercial production toward that isolated isomer.

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Related: Almond Tree · Ambrox Super · Amburana Wood · Amyris · Blonde Woods · Caoutchouc · Cashalox · Cashmir Wood