2,5-Dichloroterephthalaldehyde CAS 46052-84-0
| CAS No. | 46052-84-0 |
| Molecular Formula | C8H4Cl2O2 |
| Molecular Weight | 203.02 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 2,5-Dichloroterephthalaldehyde meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
2,5-Dichloroterephthalaldehyde (CAS 46052-84-0) is a high-purity analytical reference standard with the molecular formula C8H4Cl2O2 and a molecular weight of 203.02 g/mol.
Structurally, 2,5-Dichloroterephthalaldehyde (C8H4Cl2O2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 203.02 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C8H4Cl2O2 |
| Molecular Weight | 203.02 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1970 |
| Halogen Content | Cl-containing |
Recommended Standards
- 2-(3,4-Dichlorophenyl)-2-oxoacetaldehyde (CAS 38923-36-3)
- 4,6-dichloro-2,3-dihydro-1-benzofuran-3-one (CAS 857062-58-9)
- 2-(2,6-Dichlorophenyl)-2-oxoacetaldehyde (CAS 53216-17-4)
- 5,7-Dichlorobenzofuran-3(2H)-one (CAS 74815-20-6)
- 1,2-Dibromo-1-chloro-2-fluoropropane (CAS 885276-04-0)
- cis-4-Amino-N,N-dimethylcyclohexanecarboxamide (CAS 412292-65-0)
- Ethyl 4-oxo-4H-chromene-6-carboxylate (CAS 67733-31-7)
- 2,6-Difluoro-4-methoxyaniline (CAS 151414-47-0)
- 6-Bromo-3-(chlorodifluoromethyl)-[1,2,4]triazolo[4,3-a]pyridine (CAS 1262620-72-3)
- 4-Bromo-6-(2-(methyl-d3)propan-2-yl-1,1,1,3,3,3-d6)pyrimidine (CAS CATO-CIM-105150)
- 2-Chloro-4-(2,5-dichlorophenyl)pyrimidine (CAS 894854-15-0)
- [4-(5-Methyl-1,3-benzoxazol-2-yl)cyclohexyl]-methylamine (CAS 1217702-12-9)
- 4-((Difluoromethyl)sulfonyl)benzonitrile (CAS 1236079-27-8)
- Tirzepatide Impurity 11 TFA salt (CAS CATO-C4X-324011)
Why CATO?
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