4-Amino-2,6-dibromopyridine CAS 39771-34-1
| CAS No. | 39771-34-1 |
| Molecular Formula | C5H4Br2N2 |
| Molecular Weight | 251.91 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 251.91 g/mol gives 4-Amino-2,6-dibromopyridine distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
4-Amino-2,6-dibromopyridine (CAS 39771-34-1), molecular formula C5H4Br2N2 and molecular weight 251.91 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C5H4Br2N2, 4-Amino-2,6-dibromopyridine contains a nitrile group, bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 251.91 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), 4-Amino-2,6-dibromopyridine 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 | C5H4Br2N2 |
| Molecular Weight | 251.91 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 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 |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1968 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
Related Amino Standards
- 2-Amino-3,6-dibromopyridine (CAS 503425-86-3)
- 2-Amino-4,5-dibromopyridine (CAS 856848-33-4)
- 3-Amino-2,6-dibromopyridine (CAS 39856-57-0)
- 5-Amino-2,3-dibromopyridine (CAS 53242-19-6)
- 6-Amino-2,3-dibromopyridine (CAS 89284-11-7)
- 4-Amino-5-bromo-2,3-difluorobenzoic acid (CAS 1379365-61-3)
- 2-Amino-6-bromo-3,5-difluorobenzoic acid (CAS 1602151-62-1)
- 2-Amino-4-bromo-3,5-difluorobenzoic acid (CAS 1698027-86-9)
Recommended Standards
- 4,6-Dibromopyridin-3-amine (CAS 50786-37-3)
- 3-Bromo-6-(bromomethyl)pyridazine (CAS 916248-39-0)
- 2,5-Dibromopyridin-3-amine (CAS 90902-84-4)
- 3,6-Dibromo-4-methylpyridazine (CAS 89284-10-6)
- 2,3-Dihydro-9,10-dihydroxy-1,4-anthracenedione (CAS 17648-03-2)
- 2-(4-Isopropoxybenzoyl)-6-methoxypyridine (CAS 1187166-38-6)
- 1,2-Difluoro-3-methyl-5-nitrobenzene (CAS 1805056-06-7)
- 2-Bromo-3-fluoro-5-hydroxybenzaldehyde (CAS 1807235-04-6)
- (R)-tert-butyl 2-ethylmorpholine-4-carboxylate (CAS 2079871-60-4)
- 6-(P-tolyl)pyrimidin-4-amine (CAS 1249522-71-1)
- 3-Methoxy-N-(4-methoxybenzyl)propan-1-amine (CAS 884497-42-1)
- 6-Bromo-5-methylquinoxaline (CAS 2386229-26-9)
- N-(4-(4-Chlorophenyl)-1,2,5-oxadiazol-3-yl)-2-ethylbutanamide (CAS 873083-28-4)
- Fragment-[3-31]-Semaglutide (CAS CATO-C4X-2226113)
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