- CAS number
- 91-64-5
- IFRA Standard status
- Concentration restricted
- Products
- 55
Last updated · 05-07-2026Record completeness90%
The information here describes the ingredient in general. Its possible sources may vary and do not necessarily show the origin or form used in a particular YUMA product. For product-specific information, check the relevant product page.
Description
Coumarin is one of the most widely used ingredients in the fragrance industry. It features a distinctive scent combining notes of almond, vanilla, and freshly mown hay, adding warmth and sweetness to fragrance compositions. Although found naturally in various plants, most notably the tonka bean, in modern perfumery it is primarily produced synthetically in laboratories. Coumarin is also present in foods and plants such as cinnamon, green tea, lavender, strawberries, and apricots, contributing to their natural aroma. It is widely used in fougère and oriental fragrances, providing depth and longevity to scent compositions.
Reported natural sources
ApricotCinnamonCherryTonka beanLavenderBuckwheat honeyMintGreen teaStrawberryPeppermint
Additional information
- Tonka beans, a rich natural source of coumarin, were used by South American indigenous peoples as lucky charms before becoming popular in European perfumery.
- Coumarin takes its name from coumarou, the local name for the tonka tree in the language of the indigenous people of French Guiana. Its first synthesis in 1868 marked a milestone in perfumery.
CAS number
91-64-5
Other names
Cumarincis-o-Coumaric acid lactone3-(2-hydroxyphenyl)-2-propenoic lactone2-oxo-1,2-benzopyran2-Oxo-1,2-benzopyranBenzo-alpha-pyroneOrtho-hydroxycinnamic acid delta-lactoneOrtho-hydroxycinnamic acid lactoneChromenoneChromen-2-one
Linked YUMA products
IFRA Standard status
The IFRA Standards form an industry self-regulatory system. They may prohibit or restrict the use of particular fragrance ingredients, or set specifications, according to end use. The status below reflects the IFRA data recorded for this ingredient. It is not a product certification and does not replace applicable law or assessment of the finished product.
Concentration restricted (R)
Related IFRA documentIFRA restrictions by category
IFRA categories group end uses by the type and level of exposure. A restriction or maximum concentration applies only to the stated category and does not automatically apply to another use. Check the related IFRA document for the applicable Standard version and its full conditions.
- Category 1. ingredients.ifraCategories.options.Category 1Max concentration0.089 %
- Category 2. ingredients.ifraCategories.options.Category 2Max concentration0.080 %
- Category 3. ingredients.ifraCategories.options.Category 3Max concentration0.089 %
Regulatory information
Coumarin has been thoroughly evaluated as a fragrance ingredient. European Union scientific bodies have classified it as a potential skin sensitizer, meaning there is a possibility it may cause a skin reaction such as redness, rash, or itching. The Research Institute for Fragrance Materials (RIFM) has classified it as a weak skin sensitizer and established safe levels of use. The International Fragrance Association (IFRA) has established standards for acceptable concentrations of coumarin in consumer products. In a large skin patch test study, 99.8% of participants reported no skin reaction to coumarin.
