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 |
New Products
2-(3-Methyl-1,2,4-oxadiazol-5-yl)acetic acid (as potassium salt) 2-fluoro-4-iodoaniline 4-Iodo-3,5-dimethylbenzonitrile Atorvastatin amide impurity/Atorvastatin EP Impurity F(Calcium Salt) Lantanoprost rc B Clidinium Bromide Impurity Noradrenaline EP Impurity D/Noradrenaline Methyl Ether Cetirizine EP Impurity A/Cetirizine CBHP Impurity N-Nitroso hydroxy Cetrizine EP Impurity-A (4-Fluoro-2-methoxy-5-nitro- phenyl)-[4- (1-methyl-1H- indol-3- yl)-pyrimidin-2-yl]- amine 6-bromo-4-fluoro-1-isopropyl-2-methyl-1H-benzo[d]imidazole tert-butyl 4-(6-((7-cyclo pentyl -6-(dimethyl carbamoyl) -7H-pyrrolo [2,3-d]pyrimidin-2-yl) amino)pyridin-3-yl) piperazine-1-carboxylate 2-Fluoro-4-nitrotoluene 1-(2-amino-5-hydroxy phenyl)propan-1-one (3R,4R)-1-benzyl-N,4-dimethylpiperidin-3- amine 3-(Dimethylamino)benzoic acid 2-Amino-5-chloropyridine 4-(Methylamino)-3-nitrobenzoic Acid 5-Chloro-2-Nitroaniline 3,5-dibenzyloxy Acetophenone 2,4-Diamino-6-hydroxypyrimidine 2-Chloro Benzylcyanide 3-chlorobenzyl cyanide 3,4 Diethoxy BenzylcyanideRelated products of tetrahydrofuran
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