| Identification | ||
| Name | Acetylenedicarboxylic acid | |
| Synonyms | 2-Butyne-1,4-dioic acid; 2-Butynedioic acid | |
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| Molecular Structure |
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| Molecular Formula | C4H2O4 | |
| Molecular Weight | 114.06 | |
| CAS Registry Number | 142-45-0 | |
| EINECS | 205-536-0 | |
| Properties | ||
| Melting point | 180-187 ºC | |
| Flash point | 131 ºC | |
| Water solubility | soluble | |