2H-pyran-2-one
D-valerolactone
Identification
| Name | 2H-pyran-2-one |
| CAS Number | 504-31-4 |
| EINECS | 207-990-5 |
| FDA UNII | 8WW45I202V |
| Molecular Formula | C5 H4 O2 |
| Molecular Weight | 96.08528000 |
| MDL Number | MFCD00006639 |
| Nikkaji Number | J6.216B |
| Beilstein | 0001511 |
Regulatory
Physical Properties
| Appearance | colorless to pale yellow clear liquid (est) |
| Assay | 95.00 to 100.00 |
| Food Chemicals Codex Listed | No |
| Specific Gravity | 1.19700 @ 25.00 °C. |
| Melting Point | 8.00 to 9.00 °C. @ 760.00 mm Hg |
| Boiling Point | 207.00 to 208.00 °C. @ 760.00 mm Hg |
| Vapor Pressure | 0.225000 mmHg @ 25.00 °C. (est) |
| Flash Point | 193.00 °F. TCC ( 89.20 °C. ) (est) |
| logP (o/w) | -0.645 (est) |
| Soluble in | alcohol |
No sensory data available
Safety Information
| Preferred SDS | View |
| Oral/Parenteral Toxicity | Not determined |
| Dermal Toxicity | Not determined |
| Inhalation Toxicity | Not determined |
GHS Classification
['GHS Classification in accordance with 29 CFR 1910 (OSHA HCS)', 'GHS Label elements, including precautionary statements']
Safety in Use
| Category | natural substances and extractives |
| Recommendation for 2H-pyran-2-one usage levels up to | not for fragrance use. |
| Recommendation for 2H-pyran-2-one flavor usage levels up to | not for flavor use. |
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Potential Uses
Natural Occurrence
Synonyms
coumalin
2-oxo-2H-
pyran
pyran-2-one
2H-
pyrane-2-one
2-
pyranone
2-
pyrone
D-
valerolactone
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