| Identification | |
| Name: | 1,3-Isobenzofurandione,5-ethynyl- |
| Synonyms: | 4-Ethynylphthalicanhydride; CKK 1; KK 1 |
| CAS: | 73819-76-8 |
| Molecular Formula: | C10H4 O3 |
| Molecular Weight: | 172.14 |
| InChI: | InChI=1/C10H4O3/c1-2-6-3-4-7-8(5-6)10(12)13-9(7)11/h1,3-5H |
| Molecular Structure: |  |
| Properties | |
| Melting Point: | 125 °C |
| Flash Point: | 175.6°C |
| Boiling Point: | 352.4°C at 760 mmHg |
| Density: | 1.41g/cm3 |
| Refractive index: | 1.625 |
| Flash Point: | 175.6°C |
| Safety Data | |
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