2,5-Dibromoterephthalaldehyde CAS 63525-48-4
| CAS No. | 63525-48-4 |
| Molecular Formula | C8H4Br2O2 |
| Molecular Weight | 291.92 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C8H4Br2O2, 2,5-Dibromoterephthalaldehyde contains a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 291.92 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
2,5-Dibromoterephthalaldehyde (CAS 63525-48-4), molecular formula C8H4Br2O2 and molecular weight 291.92 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 2,5-Dibromoterephthalaldehyde 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.
Physical & Chemical Properties
| Molecular Formula | C8H4Br2O2 |
| Molecular Weight | 291.92 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.) | 1975 |
| Halogen Content | Br-containing |
Recommended Standards
- 2,5-Dibromobenzofuran-3(2H)-one (CAS 1823918-46-2)
- 4,6-Dibromoisophthalaldehyde (CAS 97094-37-6)
- 2,6-Dibromobenzofuran-3(2H)-one (CAS 1823370-21-3)
- 5,5'-Dibromo-2,2'-bifuran (CAS 70477-20-2)
- 4-(Dimethylamino)butanal (CAS 104459-70-3)
- 6-Methoxy-5-(trifluoromethyl)-1-naphthonitrile (CAS 103604-49-5)
- (1R,3R)-3-fluoro-3-methylcyclohexan-1-ol (CAS 1932614-99-7)
- D-Fructopyranose-13C6 (CAS 312623-94-2)
- Cinacalcet Impurity 33 (CAS 94022-99-8)
- Muscalure (CAS 27519-02-4)
- 2-(5-Bromo-6-methoxypyridin-2-yl)acetonitrile (CAS 1206775-56-5)
- 1704050-88-3 C15H18FNO4 ethyl cis-4-fluoro-1-benzyloxycarbonylpyrrolidine-3-carboxylate (CAS 1704050-88-3)
- 4-(2-Aminoethyl)-1,3-thiazol-2-amine dihydrochloride (CAS 89364-16-9)
- Pancreatic Polypeptide (rat) (CAS 90419-12-8)
Why CATO?
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