| CAS Number | 922-67-8 |
| Catalog Description | Methyl propiolate, 99% |
| Synonym | Methyl acetylenecarboxylate |
| Synonym | Propiolic acid methyl ester |
| MDL Number | MFCD00008572 |
| Linear formula | HC≡CCOOCH3 |
| Master Molecular formula | C4H4O2 |
| Boiling point in C | 103-105° |
| Flash point in C | 10° |
| Flash point in F | 50° |
| Density | 0.945 |
| Refractive Index | 1.408 |
| Beilstein | 605462 |
| EC Number | 213-083-5 |
| Shipping | Hazardous for shipping |
| CAS Number | 922-67-8 |
| UN# | UN3272 |
| Haz Class | 3 |
| Packing Group | II |
| Signal Word | Danger |
| Pictogram code 1 |
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| Pictogram code 2 |
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| H Phrases | H225-H315-H319-H335 |
| P Phrases | P210-P241-P303+P361+P353-P305+P351+P338-P405-P501A |
| TSCA | No |
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