1-(5-Bromo-4-pyrimidinyl)ethanone CAS 1245643-85-9
| CAS No. | 1245643-85-9 |
| Molecular Formula | C6H5BrN2O |
| Molecular Weight | 201.02 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
1-(5-Bromo-4-pyrimidinyl)ethanone (CAS 1245643-85-9), molecular formula C6H5BrN2O and molecular weight 201.02 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to an amide group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system, 1-(5-Bromo-4-pyrimidinyl)ethanone is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 201.02 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
CATO manufactures 1-(5-Bromo-4-pyrimidinyl)ethanone under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C6H5BrN2O |
| Molecular Weight | 201.02 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
Related Bromo Standards
- 2-Bromo-5-methylcyclohexa-2,5-diene-1,4-dione (CAS 13070-25-2)
- 2-bromo-1-pyrazinyl-Ethanone (CAS 132426-19-8)
- 6-Bromo-5H-imidazo[2,1-b][1,3]oxazine (CAS 1334499-76-1)
- 2-Bromo-5,6-dihydro-4H-cyclopenta[b]furan-4-one (CAS 1368352-72-0)
- 5-Bromo-3-methylpyrazine-2-carbaldehyde (CAS 1393576-69-6)
- (Z)-3-Bromo-3-(furan-2-yl)acrylaldehyde (CAS 1443156-66-8)
- 6-Bromo-1,2-dihydro-3H-pyrrolo[1,2-c]imidazol-3-one (CAS 1453801-53-0)
- 5-bromo-6-methylpyrazine-2-carbaldehyde (CAS 1545563-81-2)
Recommended Standards
- 6-Amino-3-bromopicolinaldehyde (CAS 1227604-02-5)
- 2-(3-Amino-4-bromo-1h-pyrazol-1-yl)acetonitrile (CAS 1250104-10-9)
- 1-(6-Bromopyrazin-2-yl)ethan-1-one (CAS 1197235-82-7)
- 4-Amino-5-bromonicotinaldehyde (CAS 1289001-34-8)
- 1-(2,5-Dichlorophenyl)-N,N,5-trimethyl-1H-1,2,4-triazole-3-carboxamide (CAS 338398-56-4)
- (e)-3-(2-(Dimethylamino)phenyl)acrylic acid (CAS 199679-45-3)
- 3-Methoxy-5-nitrobenzamide (CAS 292635-40-6)
- N-methyl-5-propionamidopiperidine-3-carboxamide (CAS 1423034-29-0)
- (morpholin-2-yl)methanol hydrochloride (CAS 144053-98-5)
- 1-Bromo-5-ethoxy-2-fluoro-3-(trifluoromethyl)benzene (CAS 1881291-15-1)
- MEthyl 3-benzenesulfonamidopropanoate (CAS 91819-18-0)
- Ornidazole Impurity 64 (CAS CATO-C4X-133164)
- Benzyl 3',4-dihexyl-[2,2'-bithiophene]-5-carboxylate (CAS 833483-78-6)
- Insulin Degludec Impurity 3 (CAS CATO-C4X-21573)
Why CATO?
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