4H-pyran-4-one
4-oxo-4H-pyran
Identification
| Name | 4H-pyran-4-one |
| IUPAC | pyran-4-one |
| CAS Number | 108-97-4 |
| EINECS | 203-634-8 |
| FDA UNII | UJ7X07IM7Z |
| Molecular Formula | C5 H4 O2 |
| Molecular Weight | 96.08528000 |
| MDL Number | MFCD00006576 |
| Nikkaji Number | J1.500H |
| Beilstein | 105293 |
Regulatory
Physical Properties
| Assay | 95.00 to 100.00 |
| Food Chemicals Codex Listed | No |
| Melting Point | 32.00 to 33.00 °C. @ 760.00 mm Hg |
| Boiling Point | 212.00 to 213.00 °C. @ 760.00 mm Hg |
| Vapor Pressure | 0.173000 mmHg @ 25.00 °C. (est) |
| Flash Point | 214.00 °F. TCC ( 101.10 °C. ) (est) |
| logP (o/w) | -0.628 (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 4H-pyran-4-one usage levels up to | not for fragrance use. |
| Recommendation for 4H-pyran-4-one flavor usage levels up to | not for flavor use. |
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Potential Uses
Natural Occurrence
Synonyms
4-oxo-4H-
pyran
gamma-
pyrone
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