Antonio Mcgowan
Coumarin is a synthetic perfume ingredient with a distinctive sweet, powdery, almondy, and herbaceous scent. It is one of the most widely used aroma chemicals in perfumery, with around 90% of modern perfumes containing it. It is derived from tonka beans, which contain the ingredient as a natural insecticide. In perfumery, it is used to support and enhance other natural scents such as lavender, citrus, and oakmoss. It is also used to naturalise vanillin, creating a truer scent of vanilla beans.
| Characteristics | Values |
|---|---|
| First used in perfume | 1882/1884 in Fougère Royale |
| Percentage in Fougère Royale | 10% |
| Odor | Sweet, aromatic, coconut, herbaceous-warm, spicy, haylike, nutty, tobacco-like |
| Other uses | To support herbaceous odors such as lavender, lavandin, rosemary, citrus oils, oakmoss, etc. |
| Natural source | Tonka beans |
| Synthetic production | Synthesized from salicylaldehyde and acetic anhydride |
| Use in modern perfumes | Found in 90% of modern perfumes |
| Average use | 1% in a perfume compound |
| Legal status | Legal within tightly controlled limits |
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What You'll Learn
Coumarin is a synthetic perfume ingredient
Coumarin was first isolated from tonka beans in 1820 by August/A. Vogel, who initially mistook it for benzoic acid. The French pharmacist Nicholas Jean Baptiste Gaston Guibourt corrected this mistake and named the compound "Coumarin", derived from the French name for tonka beans, "coumarou". Tonka beans contain 1-3% coumarin, and the pure form of the compound can be observed as small white crystals that form on aged beans.
In modern perfumery, coumarin is synthesized from salicylaldehyde and acetic anhydride, ensuring reliable purity and performance. It is a foundational element in perfumery, offering volume, warmth, and fixative power. Coumarin is particularly important in Fougère and Oriental compositions, where it helps to modify sharp herbal top notes while extending sweetness in the base. It is also used in gourmand perfumes, where it contributes to a nutty, vanillic, creamy aroma.
Despite its importance in the fragrance industry, the use of coumarin is restricted due to its potential toxicity. In the final perfume product, coumarin is limited to a concentration of 1.6%, and in cosmetic products, its use is even more limited, up to 0.1%. Coumarin has been banned as a food additive in many countries, including the EU and the U.S., due to safety concerns.
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It has a sweet, powdery, almondy and herbaceous profile
Coumarin is a synthetic ingredient widely used in modern perfumery, found in around 90% of perfumes. It is derived from tonka beans, which contain the compound as a natural insecticide.
Coumarin has a sweet, powdery, almondy and herbaceous profile. Its scent is often described as freshly mown hay, with a sweet, aromatic coconut fragrance. It also has a warm, spicy, nutty and tobacco-like odour in extreme dilution.
Coumarin is used in perfumery to support herbaceous odours, including lavender, lavandin, rosemary, citrus oils and oakmoss. It is a key ingredient in Fougère compositions, a family of perfumes that are almost exclusively masculine. Fougère Royale, created in 1884, is believed to be the first perfume containing synthetic ingredients, with its central accord built on lavender, oak moss and coumarin.
The use of coumarin in perfumery has persisted since the late 1800s as one of the first synthetic aroma chemicals, providing a reliable purity and performance. It is used as a transitional fixative, especially in vintage-style and mossy-fruity fragrances. A touch of coumarin can naturalise vanillin, giving a truer note of vanilla beans.
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It is derived from the tonka bean
Coumarin is a fragrant organic compound that was first isolated from tonka beans in 1820 by August Vogel. It was initially mistaken for benzoic acid, but French pharmacist Nicholas Jean Baptiste Gaston Guibourt soon discovered the mistake and named the compound "Coumarin", derived from the French name for tonka beans, "coumarou".
Tonka beans, derived from the tree Dipteryx odorata, are 2-5 cm long, grey to black seeds known for their fragrant odour and bitter taste. They are primarily found in the tropical rainforests of South America and Nigeria, and coumarin is the bean's main constituent. Coumarin acts as a natural insecticide to protect the bean.
In low concentrations, coumarin smells like rotting hay, but in larger quantities, it has a sweet, almond-vanilla aroma. It is used in perfumery for its light vanilla scent, and about 90% of modern perfumes contain it. Fougère Royale, created in 1884, is believed to be the first perfume containing synthetic ingredients, with its central accord built of lavender, oak moss, and coumarin.
Coumarin is also found in other plants, such as vanilla, Galium verum, angelica, Chinese cassia, sweet grass, strawberries, black currants, apricots, and cherries. It has been banned from the food industry in many countries due to its ability to increase plasma antithrombin levels, but it is still used in air fresheners and as an insect repellent.
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It is used to support scents like lavender, rosemary, citrus oils, oakmoss, etc
Coumarin is a highly sought-after ingredient in perfumery and cooking, especially in tonka beans and cinnamon. It is often associated with tobacco scents due to its use in flavouring pipe tobacco and cigarettes, giving it a sweet odour.
In perfumery, coumarin is used in small quantities, with its use restricted to 1.6% in the final perfume product and up to 0.1% in cosmetic products. It is commonly used to support and complement other scents, such as lavender, rosemary, citrus oils, oakmoss, and more.
Fougère Royale, created by Paul Parquet in 1884, is believed to be the first perfume to contain synthetic ingredients, with its central accord built around lavender, oakmoss, and coumarin. This perfume is considered a milestone in the history of perfumery, marking the beginning of the modern era.
Lavender is a versatile floral scent that blends well with coumarin's fresh and sweet notes. The combination of lavender and coumarin creates a soothing and elegant fragrance, often associated with masculine perfumes.
Rosemary has a strong, herbaceous scent that is enhanced by coumarin's sweet and fresh nuances. Coumarin helps to soften the sharpness of rosemary, creating a well-rounded and harmonious fragrance.
Citrus oils, such as bergamot oil, contain bergapten, a compound that can cause phytotoxicity and severe sunburns. However, when paired with coumarin, the citrus notes become more subtle and balanced, creating a refreshing and uplifting fragrance.
Oakmoss, derived from the lichen Evernia prunastri, has a distinctively woody, sharp, and sensual aroma. When combined with coumarin, the oakmoss scent becomes softer and more rounded, adding depth and complexity to the fragrance. However, due to its potential as a dermal sensitizer, the use of oakmoss is restricted in perfumery to very low levels.
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It is subject to restrictions on its use in perfumery
Coumarin is a synthetic perfumery material with a sweet, powdery, almondy, and herbaceous profile. It is derived from tonka beans, which contain coumarin as a natural insecticide. In perfumery, it is used to support herbaceous odours such as lavender, lavandin, rosemary, citrus oils, and oakmoss. It is also used in Fougère compositions as a fixative and backbone ingredient.
Coumarin is subject to restrictions on its use in perfumery. While it remains legal and widely used, it is subject to tightly controlled limits. For example, the IFRA (International Fragrance Association) restricts its use to 1.5% in the finished product. This is because coumarin is the active ingredient in Tonka beans, which has been linked to health risks.
Coumarin is a benzopyran-derived lactone, structurally defined by a fused benzene and α-pyrone ring. It is biosynthetically derived in nature but is now often produced synthetically via the Perkin reaction. The synthesis of coumarin provides reliable purity and performance.
The use of coumarin in perfumery has a long history, dating back to the late 1800s when it was first isolated and synthesized in the lab. It is considered one of the first synthetic aroma chemicals and has been used in some of perfumery's most iconic structures. Today, it is still a popular and widely used ingredient, with about 90% of modern perfumes containing coumarin.
It is important to note that coumarin-containing products are not meant to be applied to the skin undiluted. They are intended as building blocks in the perfume creation process and should be handled with care.
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Frequently asked questions
Coumarin is a synthetic perfumery material with a sweet, powdery, almondy, and herbaceous profile. It is derived from tonka beans and acts as a natural insecticide to protect the bean.
The scent of coumarin is usually described as freshly mown hay, with notes of vanilla, coconut, tobacco, and almond.
Coumarin is used as a fixative and backbone ingredient in Fougère compositions, which are often described as "masculine" perfumes. It is also used to support herbaceous odors in lavender, rosemary, citrus oils, and oakmoss.
Yes, coumarin is legal and widely used in perfumery within tightly controlled limits.
Coumarin was first synthesized in a laboratory in 1868 by William Henry Perkin. In 1882, Paul Parquet created the perfume Fougère Royale, which was the first perfume to contain synthetic ingredients, including coumarin.
