Coumarin
CAS 91-64-5
EC 202-086-7
Formula C9H6O2
MW 146.14 g/mol
Flavors & Fragrances Personal Care & CosmeticsFood & NutritionPrinting & Packaging Antioxidant & StabilizerFlavoring & AcidulantSurface Modification & Wetting
Description
Coumarin (CAS 91-64-5, EC 202-086-7, C9H6O2) is a naturally occurring lactone found in tonka beans, cinnamon, and sweet clover, also known commercially as Kumarin, Coumarine, and Benzo-α-pyrone. It carries no assigned E-code and is classified under HS code 29322000.
In fragrance formulation, coumarin functions as a fixative and olfactory modifier, contributing warm, hay-like tonalities to fine perfumes and personal care products. In food and flavoring applications, it acts as a flavoring adjunct at controlled concentrations, while its antioxidant activity makes it relevant in stabilizing formulations against oxidative degradation.
Coumarin is supplied in pharmaceutical and technical grades as a crystalline powder, with compliance documentation available against Ph.Eur. and FCC standards. It is registered under REACH and subject to IFRA concentration guidelines in cosmetic applications. Standard packaging includes fiber drums and polylined bags.
In fragrance formulation, coumarin functions as a fixative and olfactory modifier, contributing warm, hay-like tonalities to fine perfumes and personal care products. In food and flavoring applications, it acts as a flavoring adjunct at controlled concentrations, while its antioxidant activity makes it relevant in stabilizing formulations against oxidative degradation.
Coumarin is supplied in pharmaceutical and technical grades as a crystalline powder, with compliance documentation available against Ph.Eur. and FCC standards. It is registered under REACH and subject to IFRA concentration guidelines in cosmetic applications. Standard packaging includes fiber drums and polylined bags.
Physical Properties
| Melting Point | 71 °C |
| Boiling Point | 301.71 °C |
| Density | 0.935 g/cm³ @ Temp: 20 °C |
| Flash Point | 162 °C |
| Appearance | WHITE CRYSTALS OR CRYSTALLINE POWDER |
| Color | White |
| Odor | at 10.00 % in dipropylene glycol. sweet hay tonka new mown hay |
| Form | Crystals or Crystalline Powder |
| Water Solubility | 1.7 g/L (20 ºC) |
| Vapor Pressure | 0.01 mm Hg ( 47 °C) |
| Refractive Index | 1.5100 (estimate) |
| Log P | 1.39 at 25℃ |
Safety & Handling (Learn More)
Danger GHS06 GHS07 GHS08
H
H301H302H317H373
P
P260P261P264P270P272P280P319P321P330P405P501P301+P316P301+P317P302+P352P333+P317P362+P364
Trade & Regulatory
| HS Code | 29322000 |
| UN Number | 2811 |
| ADR Class | 6.1 |
| Packing Group | III |
| Storage Class | 6.1C - Combustible acute toxic Cat.3 toxic compounds or compounds which causing chronic effects |
| WGK (Germany) | 1 |
Other Names
Chromen-2-OneKumarinCoumarineRattexBenzo-α-pyrone1,2-BENZOPYRONE
Related Products
Raw Materials
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