| Formula / Notation | C9H6O2 |
|---|---|
| CAS Number | 91-64-5 |
| Molecular Weight | 146.14 |
| Melting Point | 154 to 158 °F (NTP, 1992) |
| Boiling Point | 568 °F at 760 mmHg (NTP, 1992) |
| Density | 0.935 at 68 °F (NTP, 1992) - Less dense than water; will float |
| Solubility | less than 0.1 mg/mL at 63.5 °F (NTP, 1992) |
| Appearance | Coumarin appears as colorless crystals, flakes or colorless to white powder with a pleasant fragrant vanilla odor and a bitter aromatic burning taste. (NTP, 1992) |
| Also Known As | chromen-2-one; 91-64-5; 2H-Chromen-2-one; 2H-1-Benzopyran-2-one; cumarin; 1,2-Benzopyrone; Tonka bean camphor; Rattex; Coumarinic anhydride; Coumarine |
| Category | Organic Compounds |
What is Coumarin?
Coumarin is a chromenone having the keto group located at the 2-position. It has a role as a fluorescent dye, a plant metabolite and a human metabolite.
Formula & Notation
IUPAC Name: chromen-2-one
Other Names / Synonyms: chromen-2-one; 91-64-5; 2H-Chromen-2-one; 2H-1-Benzopyran-2-one; cumarin; 1,2-Benzopyrone; Tonka bean camphor; Rattex; Coumarinic anhydride; Coumarine
Properties & Characteristics
Physical Data
| Property | Value |
|---|---|
| Melting Point | 154 to 158 °F (NTP, 1992) |
| Boiling Point | 568 °F at 760 mmHg (NTP, 1992) |
| Density | 0.935 at 68 °F (NTP, 1992) - Less dense than water; will float |
| Molecular Weight | 146.14 |
| Solubility | less than 0.1 mg/mL at 63.5 °F (NTP, 1992) |
| Appearance | Coumarin appears as colorless crystals, flakes or colorless to white powder with a pleasant fragrant vanilla odor and a bitter aromatic burning taste. (NTP, 1992) |
Uses & Applications
Safety Information
Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.
Key Facts
Frequently Asked Questions
Coumarin is a chromenone having the keto group located at the 2-position. It has a role as a fluorescent dye, a plant metabolite and a human metabolite.
Used as an industrial feedstock, solvent, pharmaceutical intermediate, flavoring agent, or chemical building block.
Flammable or irritant. Many organic compounds are flammable liquids or vapours. Keep away from ignition sources. Consult SDS for specific hazard data.
The formula or notation for Coumarin is: C9H6O2