4-Bromo-2-methylpyrimidine CAS 1114560-76-7
| CAS No. | 1114560-76-7 |
| Molecular Formula | C5H5BrN2 |
| Molecular Weight | 173.01 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Bromo-2-methylpyrimidine (CAS 1114560-76-7) is a high-purity analytical reference standard with the molecular formula C5H5BrN2 and a molecular weight of 173.01 g/mol.
Based on its molecular formula C5H5BrN2, 4-Bromo-2-methylpyrimidine contains a nitrile group, bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 173.01 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C5H5BrN2 |
| Molecular Weight | 173.01 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| 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.) | 1989 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
Related Bromo Standards
- 2-Bromo-3-methylpyrazine (CAS 120984-76-1)
- 4-Bromo-5-methylpyrimidine (CAS 1257851-33-4)
- 3-Bromo-5-methylpyridazine (CAS 1257854-82-2)
- 2-Bromo-4-methylpyrimidine (CAS 130645-48-6)
- 4-Bromo-5-methylpyridazine (CAS 1368375-27-2)
- 3-Bromo-4-methylpyridazine (CAS 1416373-61-9)
- 5-Bromo-4-methylpyrimidine (CAS 1439-09-4)
- 2-Bromo-5-methylpyrimidine (CAS 150010-20-1)
Recommended Standards
- Favipiravir Impurity 23 (CAS 2091074-00-7)
- 5,6-Dichloronicotinonitrile (CAS 65189-15-3)
- 4-(Bromomethyl)pyridazine (CAS 1253790-86-1)
- 4,6-Dichloropicolinonitrile (CAS 40314-71-4)
- 2-Amino-5-[(4-chlorophenyl)methyl]-5-phenyl-4,5-dihydro-1H-imidazol-4-one (CAS 918665-07-3)
- Diethyl 2-Fluorobenzylphosphonate (CAS 63909-54-6)
- Benzyl 4-((2-chloro-N-methylacetamido)methyl)piperidine-1-carboxylate (CAS 1353945-45-5)
- 4-Bromo-1-(4-iodobenzyl)-1h-pyrazol-3-amine (CAS 1495450-20-8)
- 3-Methoxy-5,8-dimethyl-2-phenylimidazo[1,2-a]pyridine (CAS 89193-05-5)
- (S)-2-((tert-butoxycarbonyl)amino)-3-(3,5-dichloro-4-hydroxyphenyl)propanoic acid (CAS 123418-41-7)
- Methyl 4-methyl-2-oxo-1,2-dihydropyridine-3-carboxylate, 97% (CAS 147078-67-9)
- 1-(2-Bromo-4-nitrophenyl)piperidine (CAS 1260658-32-9)
- L-Lanthionine ketimine 5-ethylester (CAS 944115-20-2)
- Semaglutide impurity 76 (CAS CATO-C4X-222676)
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