base note gourmand Tonka Bean

Coumarin

Also known as: Tonka camphor, 1,2-Benzopyrone, Coumarinic anhydride, 2H-chromen-2-one, Tonka bean camphor

Sweet, hay-like, tonka bean, almond, warm, tobacco-like

IFRA Restriction

This is the maximum allowed percentage of this material in the total finished product, not in the fragrance concentrate.

For example, if a fine fragrance (Category 4A) contains 20% fragrance oil, and IFRA allows 10% of this material, the material can be up to 50% of the fragrance concentrate (10% ÷ 20% = 50%).

EU Allergen

This ingredient is classified as an EU allergen under the Cosmetics Regulation (EC) No 1223/2009.

Labeling thresholds:

  • 0.001% in leave-on products
  • 0.01% in rinse-off products
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CAS 91-64-5
Manufacturers Solvay, Eternis

About Coumarin

A lactone with a distinctive hay-like, tonka bean character. One of the oldest synthetic aroma chemicals, first synthesized in 1868. Essential for fougère and oriental compositions.

Molecular Information
Molecular Formula C9H6O2
Molecular Weight 146.14 g/mol
Boiling Point 568 °F at 760 mmHg (NTP, 1992)
Flash Point 304 °F (NTP, 1992)
Density 0.935 at 68 °F (NTP, 1992) - Less dense than water; will float
Vapor Pressure 0.01 mmHg at 117 °F ; 1 mmHg at 223 °F (NTP, 1992)
InChIKey ZYGHJZDHTFUPRJ-UHFFFAOYSA-N
Sources: PubChem

Safety Information
Danger

GHS Classification

Acute toxicity, oralSensitization, Skin

Hazard Statements

  • H301: Toxic if swallowed
  • H302: Harmful if swallowed
  • H317: May cause an allergic skin reaction
Sources: PubChem (ECHA C&L)