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| Product name | 1,2-Phthalic dicarboxaldehyde |
| English alias | phthalaldehyde; o-Phthalic dicarboxaldehyde; o-Phthaldialdehyde OPD; o-Phthalaldehyde (1.11452); Phthaldialdehyde; o-Phthaldialdehyde; O-PHTHALALDEHYDE; O-PHTALALDEHYDE; o-phthaladehyde; Benzene-1,2-dicarboxaldehyde; OPA; benzene-1,2-dicarbaldehyde; 1,2-Benzenedialdehyde |
| CAS No. | 643-79-8 |
| EINECS | 211-402-2 |
| Molecular formula | C8H6O2 |
| Molecular weight | 134.132 |
| InChI | InChI=1/C8H6O2/c9-5-7-3-1-2-4-8(7)6-10/h1-6H |
| Molecular structure | .gif) |
| Density | 1.189g/cm3 |
| Melting point | 54-57℃ |
| Boiling point | 266.1°C at 760 mmHg |
| Flash point | 98.5°C |
| Water solubility | soluble |
| Vapor pressure | 0.0088mmHg at 25°C |
| Physical and chemical properties | Density 1.13 Melting point 54-57 ° C Boiling point 83-84 ° C (0.7501 mmHg) Flash point 132 ° C Water soluble solution |
| Use | Mainly used for pharmaceuticals, dyes, etc |
| Danger signs |  T:Toxic; |
| Risk terminology | R25:; R34:; R43:; |
| Security terminology | S26:; S36/37/39:; S45:; |
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