4,5-DICHLOROPHTHALIC ACID
Synonym(s):4,5-Dichloro-1,2-benzenedicarboxylic acid
- CAS NO.:56962-08-4
- Empirical Formula: C8H4Cl2O4
- Molecular Weight: 235.02
- MDL number: MFCD00002493
- EINECS: 260-478-3
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-01-13 11:24:27
What is 4,5-DICHLOROPHTHALIC ACID?
Purification Methods
Crystallise the acid from water. It has been purified by converting to the anhydride, reacting it with boiling EtOH to form the monoethyl ester (m 133-134o) and hydrolysing it back to the diacid (see next entry). [Beilstein 9 III 4205.]
Properties of 4,5-DICHLOROPHTHALIC ACID
| Melting point: | 198-200 °C (dec.)(lit.) |
| Boiling point: | 422.1±45.0 °C(Predicted) |
| Density | 1.698±0.06 g/cm3(Predicted) |
| storage temp. | Sealed in dry,Room Temperature |
| pka | 2.35±0.10(Predicted) |
| CAS DataBase Reference | 56962-08-4(CAS DataBase Reference) |
| EPA Substance Registry System | 1,2-Benzenedicarboxylic acid, 4,5-dichloro- (56962-08-4) |
Safety information for 4,5-DICHLOROPHTHALIC ACID
| Signal word | Warning |
| Pictogram(s) |
![]() Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
| Precautionary Statement Codes |
P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P280:Wear protective gloves/protective clothing/eye protection/face protection. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for 4,5-DICHLOROPHTHALIC ACID
| InChIKey | FDOQKGWUMUEJLX-UHFFFAOYSA-N |
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