2,5-Dibromo-4-nitroaniline CAS 25462-68-4
| CAS No. | 25462-68-4 |
| Molecular Formula | C6H4Br2N2O2 |
| Molecular Weight | 295.92 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2,5-Dibromo-4-nitroaniline (CAS 25462-68-4), molecular formula C6H4Br2N2O2 and molecular weight 295.92 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C6H4Br2N2O2, 2,5-Dibromo-4-nitroaniline contains an amide group, 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 295.92 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.
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-Dibromo-4-nitroaniline 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 | C6H4Br2N2O2 |
| Molecular Weight | 295.92 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1964 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
Related Dibromo Standards
- 2,3-Dibromo-6-methyl-5-nitropyridine (CAS 856834-12-3)
- 2,4-Dibromo-6-methyl-3-nitropyridine (CAS 706789-62-0)
- 2,4-Dibromo-6-nitroaniline (CAS 827-23-6)
- 2,5-Dibromo-4-methyl-3-nitropyridine (CAS 947534-69-2)
- 2,6-Dibromo-4-methyl-3-nitropyridine (CAS 593671-26-2)
- 4,5-Dibromo-2-nitroaniline (CAS 75293-97-9)
- 2,6-Dibromo-4-nitroaniline (CAS 827-94-1)
- 2,5-Dibromo-4-hydroxybenzoic acid (CAS 101421-19-6)
Recommended Standards
- 2-Bromo-6-(bromomethyl)-3-nitropyridine (CAS 914224-02-5)
- Ethyl 3-amino-2,5-dibromoisonicotinate (CAS 52834-10-3)
- 7-Bromo-4,6-dichloro-5-fluoroquinazoline (CAS 1956325-83-9)
- N'-(3,5-Dibromopyrazin-2-yl)-N-hydroxyformimidamide (CAS 60420-05-5)
- 2-(Thiophen-2-yl)ethane-1-sulfonyl chloride (CAS 405308-14-7)
- 6-(3-Methylfuran-2-carboxamido)hexanoic acid (CAS 953733-07-8)
- 2-(4-(Difluoromethyl)-5-methoxy-2-(trifluoromethyl)pyridin-3-yl)acetonitrile (CAS 1805615-61-5)
- 2-Amino-2-cyclopropylethan-1-ol hydrochloride (CAS 1306603-98-4)
- 4-Acetyl-N-(2-methoxyethyl)benzenesulfonamide (CAS 620986-46-1)
- 2-((4-Chloro-6-((2,3-dimethylphenyl)(methyl)amino)pyrimidin-2-yl)amino)acetic acid (CAS 86627-19-2)
- Ethyl 5-chloro-2,3-difluorobenzoate (CAS 1214361-29-1)
- 3-Chloro-N-methyl-2-nitroaniline (CAS 60498-57-9)
- 1-Benzyl 2-(tert-butyl) (R)-5-oxopyrrolidine-1,2-dicarboxylate (CAS 125134-29-4)
- D-[Ser]8-Semaglutide (CAS CATO-C4X-2226207)
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