Aldehydes-Aldehydic
An aldehyde is an organic hydrocarbon chemical containing a terminal carbonyl functional group (-CH=O), consisting of a carbon, a hydrogen, and an oxygen atom. It is a highly reactive compound created by partial oxidation of a primary alcohol and is easily converted to a corresponding acid.
Aldehydes can be derived from natural or synthetic materials. They are present in many natural substances, such as orange rind, rose petals, and cinnamon bark. The general name was coined by the German chemist Justus von Liebig as a contraction of the Latin alcohol dehydrogenatus, meaning 'alcohol without hydrogen.' The aldehyde group is sometimes called a formyl or methanoyl group. Other groups of organic compounds containing carbonyl groups include ketones and carboxylic acids.
In perfumery, the term aldehyde indicates a molecule containing a shorter (C6-C12) straight-chained (aliphatic) aldehyde. The scent of the aldehyde depends upon the alcohol from which it is produced. In perfume classification, aldehydes are often called the 'modern' group. The shortest (C1-C5), lower-weight aldehydes smell bad, most like rotten fruits, and are not used in scents. There are different types of scents associated with the carbonyl function, but the most common ones to which the term 'aldehydic' refers range from a somewhat sharp, crisp, and metallic character to slightly starchy, fatty, or creamy tone.
The overall scent in perfumes is often described as having hints of flowers and/or citrus, or like freshly washed linens, with a tone that is both rich and light. They frequently are divided into a 'fatty' group, with powerful but pleasant smells that become citrusy with dilution, and a 'waxy' group that has more floral odors which become sweeter upon dilution, although some aldehydes have both properties. Green floral aldehydes give perfumes sharper, 'outdoor' notes, while woody floral aldehydes add tones of cedar, patchouli, or oak. Aldehydes have a distinctive waxy, 'soapy' smell similar to that of a blown-out candle. (The smell of candles actually is provided by the aldehydes, which are products of incomplete combustion of paraffin.) The aroma is quite strong and intense, becoming pleasant only when diluted down to 1% or less.
Generally, an 'aldehydic' fragrance is one to which aldehydes have been added for their sparkling brilliance, vibrancy, and strong, incisive effect, usually with an exciting top note. They are said to 'move' when you smell them, not staying static. Aldehydes 'adapt' to the natural skin scent, enhancing other notes in a composition, and are used as modifiers as well as for their scent alone. Aldehydes have been used heavily in perfumery for a long time because of their low price, their intensity, and their ability to mask unpleasant tones of soap bases.
Aldehydes were first used in the 1905 edition of L.T. Piver's Rêve D'Or, by perfumer Louis Armingeat, then in Houbigant Quelques Fleurs in 1912 and Alphonse Rallet Bouquet de Catherine in 1913. One of the first 'aldehydic' fragrances using the chemical in a higher amount was the famous Chanel No. 5 launched in 1921, which had an unprecedented concentration of almost 1% aldehydes, primarily C10, C11, and C12. Coco Chanel's intention was to create a perfume that smelled like woman rather than like flowers, saying, "Women do not want to smell of a bed of rose." (It is said that Chanel's perfumer, Ernest Beaux, mistakenly added much more aldehyde than she had requested, but she loved the result and kept it.) No. 5 became so popular that many subsequent 'aldehydic fragrances' used the same combination. Although there is hardly a single fragrance now without some type of aldehyde in it, more recent ones usually do not contain aldehydes in large concentrations because that is perceived to be old-fashioned. Many people now prefer a closer-to-the-skin scent, more subtle and more politically correct.
The aldehydes most commonly used in perfumery and their scents:
C7 (heptanal) - sharp, herbal, green, grassy, slightly fruity, reminiscent of fresh outdoor breezes
C8 (octanal) - citrus, suggesting oranges, lemons, and orange peel
C9 (nonanal) - rose, with hints of rosewood, jasmine, and orange
C10 (decanal) - orange rind zest
C10 citral - citrus, especially lemon
C11 (undecanal) - bitter coriander, fresh, 'clean'
C12 (lauric dodecanal) - lilac, violet, with a touch of conifer
C13 (tridecanal) - grapefruit and grapefruit peel, waxy, soapy, slightly floral
C14 (gamma undecalactone) - peach
Other aldehyde variants that are used:
strawberry glycidate - sweet strawberry, floral, honey
gamma nonalactone - sweet, creamy, buttery, hints of coconut
amylcinnamic aldehyde - jasmine
anisaldehyde - anise and a hint of hawthorn
benzaldehyde - almond
cinnamaldehyde - cinnamon
cuminic aldehyde - cumin
cyclamen aldehyde - cyclamen
furfural - almond
heliotropin - floral, similar to vanillin or cherry
hexanal (C6) - green and apple notes
hexylcinnamic aldehyde - jasmine
lilial - lily-of-the-valley, linden
mandarine aldehyde - mandarin orange, coriander
melonal (melon aldehyde) - melon, green, cucumber
Mircenal (citrus carbaldehyde) - floral, citrus, ozone
muscone - musk
phenylacetaldehyde - green narcissus, hyacinth
propanal (propionaldehyde) - sweet, fruity
triplal - green grass
vanillin (4-hydroxy-3-methoxy-banzaldehyde) - sweet, creamy vanilla
Aldehydes have been used in many versions of soaps and detergents to give them a 'fresh lemon scent,' especially Lux soaps. Aldehydes also are used for the manufacture of synthetic resins (e.g. bakelite), as well as dyes, flavorings, medications, and other chemicals. Some are used as preservatives and disinfenctants. Some critics complain that aldehydes can be toxic even in perfume concentrations, although research about this is contradictory.
Masculine fragrances with prominent aldehydes:
Adidas Active Bodies, Team Force
Adolfo Dominguez Agua Fresca Extreme
Alfred Sung
Amordad Beaumont White Gold
Aramis Anniversary Edition, Devin, Havana, Ice, JHL, New West
Azzaro Chrome Sport, Decibel
Baldessarini Cool Force Sport
Bvlgari
Calvin Klein CK One Red, Eternity
Cartier Must pour Homme
Chanel Allure Sport
Christian Dior Eau Sauvage, Fahrenheit 32
Coty Stetson Siera
Dana Wind Drift
Davidoff Echo
Daniel Hechter Caractere
Estee Lauder Intuition
Faberge Brut Identity
Faberlic Cruiser Turbo, Incognito
Farina Russisch Leder
Floris 1927
Gianfranco Ferre Lui
Giorgio Beverly Hills Giorgio, VIP
Givenchy Insense
Guerlain Heritage, Vetiver
Guy Laroche Horizon
Helena Rubinstein Men's Club
Hermes Equipage
Hugo Boss Cashmere Patchouli, Elements, Spirit
Jacques Bogart Force Majeure, Witness
Jean Paul Gaultier Le Male Airlines, Le Male Andre, Le Male Popeye, Le Male Superman
John Varvatos Dark Rebel Rider, Rock Volume One
Kanebo Eroica, Gilvan, HF, Hinotori, Valcan
Karl Lagerfeld Classic, Photo
Liz Claiborne Curve Chill
Maurer & Wirtz Tabac (Original)
Nautica
Nina Ricci Phileas
Oleg Cassini Reporter
Oscar de la Renta Oscaar pour Lui
Pal Zileri Lab i-White
Paloma Picasso Minotaure
Ralph Lauren Polo Black, Polo Sport, Safari
Rasasi Shaghaf
Rochas Eau de Rochas
Roja Madison
Royal Copenhagen
Salvador Dali Salvador
Valentino Vendetta
Versace Green Jeans
Weil
X-Bond Lion Gold
Yves St. Laurent Kouros, l'Homme Libre, l'Homme Sport, Rive Gauche, Y
An aldehyde is an organic hydrocarbon chemical containing a terminal carbonyl functional group (-CH=O), consisting of a carbon, a hydrogen, and an oxygen atom. It is a highly reactive compound created by partial oxidation of a primary alcohol and is easily converted to a corresponding acid.
Aldehydes can be derived from natural or synthetic materials. They are present in many natural substances, such as orange rind, rose petals, and cinnamon bark. The general name was coined by the German chemist Justus von Liebig as a contraction of the Latin alcohol dehydrogenatus, meaning 'alcohol without hydrogen.' The aldehyde group is sometimes called a formyl or methanoyl group. Other groups of organic compounds containing carbonyl groups include ketones and carboxylic acids.
In perfumery, the term aldehyde indicates a molecule containing a shorter (C6-C12) straight-chained (aliphatic) aldehyde. The scent of the aldehyde depends upon the alcohol from which it is produced. In perfume classification, aldehydes are often called the 'modern' group. The shortest (C1-C5), lower-weight aldehydes smell bad, most like rotten fruits, and are not used in scents. There are different types of scents associated with the carbonyl function, but the most common ones to which the term 'aldehydic' refers range from a somewhat sharp, crisp, and metallic character to slightly starchy, fatty, or creamy tone.
The overall scent in perfumes is often described as having hints of flowers and/or citrus, or like freshly washed linens, with a tone that is both rich and light. They frequently are divided into a 'fatty' group, with powerful but pleasant smells that become citrusy with dilution, and a 'waxy' group that has more floral odors which become sweeter upon dilution, although some aldehydes have both properties. Green floral aldehydes give perfumes sharper, 'outdoor' notes, while woody floral aldehydes add tones of cedar, patchouli, or oak. Aldehydes have a distinctive waxy, 'soapy' smell similar to that of a blown-out candle. (The smell of candles actually is provided by the aldehydes, which are products of incomplete combustion of paraffin.) The aroma is quite strong and intense, becoming pleasant only when diluted down to 1% or less.
Generally, an 'aldehydic' fragrance is one to which aldehydes have been added for their sparkling brilliance, vibrancy, and strong, incisive effect, usually with an exciting top note. They are said to 'move' when you smell them, not staying static. Aldehydes 'adapt' to the natural skin scent, enhancing other notes in a composition, and are used as modifiers as well as for their scent alone. Aldehydes have been used heavily in perfumery for a long time because of their low price, their intensity, and their ability to mask unpleasant tones of soap bases.
Aldehydes were first used in the 1905 edition of L.T. Piver's Rêve D'Or, by perfumer Louis Armingeat, then in Houbigant Quelques Fleurs in 1912 and Alphonse Rallet Bouquet de Catherine in 1913. One of the first 'aldehydic' fragrances using the chemical in a higher amount was the famous Chanel No. 5 launched in 1921, which had an unprecedented concentration of almost 1% aldehydes, primarily C10, C11, and C12. Coco Chanel's intention was to create a perfume that smelled like woman rather than like flowers, saying, "Women do not want to smell of a bed of rose." (It is said that Chanel's perfumer, Ernest Beaux, mistakenly added much more aldehyde than she had requested, but she loved the result and kept it.) No. 5 became so popular that many subsequent 'aldehydic fragrances' used the same combination. Although there is hardly a single fragrance now without some type of aldehyde in it, more recent ones usually do not contain aldehydes in large concentrations because that is perceived to be old-fashioned. Many people now prefer a closer-to-the-skin scent, more subtle and more politically correct.
The aldehydes most commonly used in perfumery and their scents:
C7 (heptanal) - sharp, herbal, green, grassy, slightly fruity, reminiscent of fresh outdoor breezes
C8 (octanal) - citrus, suggesting oranges, lemons, and orange peel
C9 (nonanal) - rose, with hints of rosewood, jasmine, and orange
C10 (decanal) - orange rind zest
C10 citral - citrus, especially lemon
C11 (undecanal) - bitter coriander, fresh, 'clean'
C12 (lauric dodecanal) - lilac, violet, with a touch of conifer
C13 (tridecanal) - grapefruit and grapefruit peel, waxy, soapy, slightly floral
C14 (gamma undecalactone) - peach
Other aldehyde variants that are used:
strawberry glycidate - sweet strawberry, floral, honey
gamma nonalactone - sweet, creamy, buttery, hints of coconut
amylcinnamic aldehyde - jasmine
anisaldehyde - anise and a hint of hawthorn
benzaldehyde - almond
cinnamaldehyde - cinnamon
cuminic aldehyde - cumin
cyclamen aldehyde - cyclamen
furfural - almond
heliotropin - floral, similar to vanillin or cherry
hexanal (C6) - green and apple notes
hexylcinnamic aldehyde - jasmine
lilial - lily-of-the-valley, linden
mandarine aldehyde - mandarin orange, coriander
melonal (melon aldehyde) - melon, green, cucumber
Mircenal (citrus carbaldehyde) - floral, citrus, ozone
muscone - musk
phenylacetaldehyde - green narcissus, hyacinth
propanal (propionaldehyde) - sweet, fruity
triplal - green grass
vanillin (4-hydroxy-3-methoxy-banzaldehyde) - sweet, creamy vanilla
Aldehydes have been used in many versions of soaps and detergents to give them a 'fresh lemon scent,' especially Lux soaps. Aldehydes also are used for the manufacture of synthetic resins (e.g. bakelite), as well as dyes, flavorings, medications, and other chemicals. Some are used as preservatives and disinfenctants. Some critics complain that aldehydes can be toxic even in perfume concentrations, although research about this is contradictory.
Masculine fragrances with prominent aldehydes:
Adidas Active Bodies, Team Force
Adolfo Dominguez Agua Fresca Extreme
Alfred Sung
Amordad Beaumont White Gold
Aramis Anniversary Edition, Devin, Havana, Ice, JHL, New West
Azzaro Chrome Sport, Decibel
Baldessarini Cool Force Sport
Bvlgari
Calvin Klein CK One Red, Eternity
Cartier Must pour Homme
Chanel Allure Sport
Christian Dior Eau Sauvage, Fahrenheit 32
Coty Stetson Siera
Dana Wind Drift
Davidoff Echo
Daniel Hechter Caractere
Estee Lauder Intuition
Faberge Brut Identity
Faberlic Cruiser Turbo, Incognito
Farina Russisch Leder
Floris 1927
Gianfranco Ferre Lui
Giorgio Beverly Hills Giorgio, VIP
Givenchy Insense
Guerlain Heritage, Vetiver
Guy Laroche Horizon
Helena Rubinstein Men's Club
Hermes Equipage
Hugo Boss Cashmere Patchouli, Elements, Spirit
Jacques Bogart Force Majeure, Witness
Jean Paul Gaultier Le Male Airlines, Le Male Andre, Le Male Popeye, Le Male Superman
John Varvatos Dark Rebel Rider, Rock Volume One
Kanebo Eroica, Gilvan, HF, Hinotori, Valcan
Karl Lagerfeld Classic, Photo
Liz Claiborne Curve Chill
Maurer & Wirtz Tabac (Original)
Nautica
Nina Ricci Phileas
Oleg Cassini Reporter
Oscar de la Renta Oscaar pour Lui
Pal Zileri Lab i-White
Paloma Picasso Minotaure
Ralph Lauren Polo Black, Polo Sport, Safari
Rasasi Shaghaf
Rochas Eau de Rochas
Roja Madison
Royal Copenhagen
Salvador Dali Salvador
Valentino Vendetta
Versace Green Jeans
Weil
X-Bond Lion Gold
Yves St. Laurent Kouros, l'Homme Libre, l'Homme Sport, Rive Gauche, Y
John