5-bromo-3-[(5-ethyl-1,2,4-oxadiazol-3-yl)methyl]-2-methyl-3,4-dihydropyrimidin-4-one CAS 1502433-71-7
| CAS No. | 1502433-71-7 |
| Molecular Formula | C10H11BrN4O2 |
| Molecular Weight | 299.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies 5-bromo-3-[(5-ethyl-1,2,4-oxadiazol-3-yl)methyl]-2-methyl-3,4-dihydropyrimidin-4-one (CAS 1502433-71-7), a certified reference material (molecular formula C10H11BrN4O2, MW 299.12 g/mol) for analytical method development and quality control.
Structurally, 5-bromo-3-[(5-ethyl-1,2,4-oxadiazol-3-yl)methyl]-2-methyl-3,4-dihydropyrimidin-4-one (C10H11BrN4O2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 299.12 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C10H11BrN4O2 |
| Molecular Weight | 299.12 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 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1992 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 4 |
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Recommended Standards
- n-(5-Bromopicolinoyl)-n-cyclopropylglycine (CAS 1482763-29-0)
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- 5-bromo-3-{[3-(propan-2-yl)-1,2,4-oxadiazol-5-yl]methyl}-3,4-dihydropyrimidin-4-one (CAS 1510711-65-5)
- Tetradecylammonium hydroxide (CAS 57340-65-5)
- 2-(2-(3-Phenyl-1,2,4-oxadiazol-5-yl)phenyl)acetic acid (CAS 104907-29-1)
- 4-(3-(5-Ethylfuran-2-yl)propanamido)benzoic acid (CAS 708280-43-7)
- 2-Chloro-6-cyclopropyl-4-(trifluoromethyl)pyridine (CAS 1251910-15-2)
- Vardenafil Impurity 31 (CAS CATO-C4X-101731)
- N-[(2-aminophenyl)methyl]methanesulfonamide (CAS 1049798-32-4)
- Ethyl 3-oxo-3-(1,3-thiazol-4-yl)propanoate (CAS 887411-81-6)
- 1-(1-p-Tolyl-ethyl)-piperazine dihydrochloride (CAS 1185298-93-4)
- 1-(2-Chlorobenzoyl)piperidin-4-one (CAS 1016700-87-0)
- Peptide Impurity 82 (CAS 10491-78-8)
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