(R)-(+)-Citralis is ‘very close to racemic Citralis, and stronger than its antipode; aldehydic, fresh, floral, citronellal-like odour, reminiscent of verbena and lemongrass; a somewhat slightly latex and plastic connotation is present as well’ Odour threshold: 2.5 ng/L air = (R)-(+)-Mefranal = (R)-(+)-3-Methyl-5-phenylpentanal Innospec describes the commercial (racemic) material as "Fresh, rosy-citrus-ozone with a hint of lily of the valley". Givaudan describes the commercial (racemic) material as Citrus, Aldehydic, Geranium; Mefranal has a refreshing lemon geranium note with an aldehydic floral heart. Ref: Ugo Matteoli, Alessandra Ciappa, Sara Bovo, Matheo Bertoldini, Alberto Scrivant, Asymmetric catalysis in fragrance chemistry: a new synthetic approach to enantiopure Phenoxanol®, Citralis® and Citralis Nitrile®, Tetrahedron: Asymmetry, Volume 18, Issue 6, 797-802 (2007) Citralis is a tradename of Innospec Inc. Mefranal is a tradename of Givaudan (ex Quest Intl)

(S)-(-)-Citralis is ‘citronellal-like, floral-aldehydic, but less fresh, more fruity in the direction of red fruits, and with a fatty-rosy undertone that somewhat even reminds of Phenoxanol’ Odour threshold: 7.9 ng/L air = (S)-(-)-Mefranal = (S)-(-)-3-Methyl-5-phenylpentanal Ref: Ugo Matteoli, Alessandra Ciappa, Sara Bovo, Matheo Bertoldini, Alberto Scrivant, Asymmetric catalysis in fragrance chemistry: a new synthetic approach to enantiopure Phenoxanol®, Citralis® and Citralis Nitrile®, Tetrahedron: Asymmetry, Volume 18, Issue 6, 797-802 (2007) Citralis is a tradename of Innospec Inc. Mefranal is a tradename of Givaudan (ex Quest Intl)

Ionones, Irones, Damascones & Structurally Related Odorants

Acyclics (Alcohols, Esters, Acids, Aldehydes)

Lactones

Sesquiterpenoid Related Odorants