5-Bromo-N2-methyl-2,4-pyrimidinediamine CAS 1074-49-3
| CAS No. | 1074-49-3 |
| Molecular Formula | C5H7BrN4 |
| Molecular Weight | 203.04 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 5-Bromo-N2-methyl-2,4-pyrimidinediamine 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.
5-Bromo-N2-methyl-2,4-pyrimidinediamine (CAS 1074-49-3) is a high-purity analytical reference standard with the molecular formula C5H7BrN4 and a molecular weight of 203.04 g/mol.
Based on its molecular formula C5H7BrN4, 5-Bromo-N2-methyl-2,4-pyrimidinediamine contains a nitrile group, bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 203.04 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
Physical & Chemical Properties
| Molecular Formula | C5H7BrN4 |
| Molecular Weight | 203.04 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.) | 1957 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 4 |
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Recommended Standards
- (6-Amino-2-bromopyridin-3-yl)methanol (CAS 1048357-75-0)
- 6-Bromo-4-methoxypyridin-2-amine (CAS 1158786-59-4)
- (4-Amino-5-bromopyridin-2-yl)methanol (CAS 103949-54-8)
- 2-Bromo-4-methoxy-5-methylpyrimidine (CAS 1161497-27-3)
- 5-(tert-Butyl)-2-iodophenol (CAS 20942-70-5)
- 2-Iodo-N-isopropylacetamide (CAS 80935-13-3)
- (Z)-4-((2-((tert-Butoxycarbonyl)amino)ethyl)amino)-4-oxobut-2-enoic acid (CAS 215654-55-0)
- 5-Bromo-N,N-diethyl-1-pentanamine Hydrobromide (CAS 2006277-83-2)
- Lemborexant impurity 14 (CAS CATO-C4X-304214)
- (5E)-3-(2-Aminoethyl)-5-[(4-chlorophenyl)methylidene]-1,3-thiazolidine-2,4-dione hydrochloride (CAS 478792-13-1)
- 4-Cyclopropoxy-2-(methylthio)-5-nitropyridine (CAS 1243397-08-1)
- 1-(4-tert-Butylphenyl)imidazolidin-2-one (CAS 1092346-57-0)
- 3-(2,6-Dichlorophenyl)-3-oxopropanenitrile (CAS 71463-50-8)
- Semaglutide impurity 261 (CAS CATO-C4X-2226261)
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