| Melting point | 55-58 °C(lit.) |
| Boiling point | 83-84 °C (0.7501 mmHg) |
| density | 1.13 |
| refractive index | 1.4500 (estimate) |
| Fp | >230 °F |
| storage temp. | 2-8°C |
| solubility | The solubility of o-phthalaldehyde is 3g/100 mL diisopropyl ether, 5g/100mL deionized water, 20g/100mL chloroform, or 20g/100mL acetone at 20°C. |
| form | powder |
| color | yellow |
| PH | 7 (53g/l, H2O, 20℃) |
| Water Solubility | soluble |
| Sensitive | Air Sensitive |
| Merck | 14,7368 |
| BRN | 878317 |
| Exposure limits | ACGIH: SL .025 mg/100 cm2; Ceiling 0.1 ppb (Skin) |
| Stability: | Stable. Air sensitive. Incompatible with strong oxidizing agents, strong bases. |
| InChIKey | ZWLUXSQADUDCSB-UHFFFAOYSA-N |
| CAS DataBase Reference | 643-79-8(CAS DataBase Reference) |
| NIST Chemistry Reference | O-phthalaldehyde(643-79-8) |
| EPA Substance Registry System | 1,2-Benzenedicarboxaldehyde (643-79-8) |
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