| Identification | ||
| Name | 3,4-Dihydroxybenzaldehyde | |
| Synonyms | Protocatechualdehyde | |
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| Molecular Structure |
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| Molecular Formula | C7H6O3 | |
| Molecular Weight | 138.12 | |
| CAS Registry Number | 139-85-5 | |
| EINECS | 205-377-7 | |
| Properties | ||
| Melting point | 152-157 ºC | |
| Water solubility | 50 g/L (20 ºC) | |