4-Hydroxy-3-Pentenoic Acid Lactone
Aroma Chemical Base Note CAS 591-12-8
A sweet coumarin note with a tonka and tobacco character and a soft nutty facet. Natural and warm, it adds a hay depth to compositions.
Odor profile
| Note | Base Note |
| Descriptor 1 | Herbal |
| Descriptor 2 | Sweet |
| Descriptor 3 | Anisic |
| Tenacity2 | 356 h |
2 Source: The Good Scents Company
Identification
| CAS Number | 591-12-8 |
| INCI Name | 5-methylfuranone |
| Category | Aroma Chemical |
| Formula | C5H6O2 |
| Mol. Weight | 98.10 |
| IUPAC Name | 5-methyl-3H-furan-2-one |
| InChIKey | QOTQFLOTGBBMEX-UHFFFAOYSA-N |
Synonyms
a-angelic lactone, a-angelica lactone, alpha-angelica lactone, delta(2)-angelica lactone, delta(sup 2)-angelica lactone, angelica lactone natural, a-angelicalactone, alpha-angelicalactone, a-angelicalactone naturalal, furan-2(3H)-one, 2,3-dihydro-5-methyl-, 2(3H)-furanone, 5-methyl-, 4-hydroxy-3-pentenoic acid g-lactone, 4-hydroxypent-3-enoic acid lactone, 5-methyl furan-2(3H)-one, 5-methyl furanone, 5-methyl-2,(3H)-furanone, 5-methyl-2(3H)-furanone, 5-methyl-2[3H]-furanone, 5-methyl-3H-furan-2-one, g-methyl-b,g-crotonolactone, gamma-methyl-beta,gamma-crotonolactone, 5-methylfuran-2(3H)-one, 3-pentenoic acid, 4-hydroxy,lactone a-angelica-lactone
Physical and chemical data
| Boiling Point | 168.5 °C |
| Melting Point | 18.00 °C |
| Flash Point | 68.33 °C |
| Density | 1.08800 |
| Refractive Index | 1.44000 |
| Vapor Pressure | 0.023000 mmHg @ 25.00 C. (est) |
| LogP | 0.236 |
| Solubility | alcohol; water, 5.00E+04 mg/L @ 15 C (exp); For experimental / research use only. |
| Appearance | white crystals |
All figures on this page are guide values collected from public reference works and supplier declarations. They differ between batches, origins and qualities. The data sheet of your own supplier is always the authoritative document for the material you actually use.