| CAS Number | 6089-09-4 |
| Catalog Description | 4-Pentynoic acid, 98% |
| Synonym | Propargylacetic acid |
| MDL Number | MFCD00004407 |
| Master Molecular formula | C5H6O2 |
| Molecular formula | C5H6O2 |
| Melting point in C | 54-57° |
| Boiling point in C | 110°/30 mmHg |
| Flash point in C | 75° |
| Flash point in F | 167° |
| Beilstein | 1742047 |
| Sensitivity | Air Sensitive |
| Sensitivity | Hygroscopic |
| Sensitivity | Light Sensitive |
| EC Number | 228-028-0 |
| Shipping | Hazardous for shipping |
| CAS Number | 6089-09-4 |
| UN# | UN3261 |
| Haz Class | 8 |
| Packing Group | II |
| Signal Word | Danger |
| Pictogram code 1 |
|
| H Phrases | H314-H318 |
| P Phrases | P260-P303+P361+P353-P305+P351+P338-P310-P405-P501A |
| TSCA | No |
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