2-Bromo-1-(3-ethylpyrazin-2-yl)ethanone CAS 594813-45-3
| CAS No. | 594813-45-3 |
| Molecular Formula | C8H9BrN2O |
| Molecular Weight | 229.07 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 229.07 g/mol gives 2-Bromo-1-(3-ethylpyrazin-2-yl)ethanone distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
2-Bromo-1-(3-ethylpyrazin-2-yl)ethanone (CAS 594813-45-3), molecular formula C8H9BrN2O and molecular weight 229.07 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, bromine substitution, 2-Bromo-1-(3-ethylpyrazin-2-yl)ethanone is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 229.07 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.
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 | C8H9BrN2O |
| Molecular Weight | 229.07 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.) | 1984 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
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Recommended Standards
- 2-Amino-N-(3-bromophenyl)acetamide (CAS 938338-35-3)
- 2-Bromo-1-(4-hydroxy-2-methylphenyl)ethanone (CAS 41877-16-1)
- 2-Amino-N-(2-bromophenyl)acetamide (CAS 900641-74-9)
- 2-Bromo-1-(4-hydroxy-3-methylphenyl)ethanone (CAS 41877-17-2)
- 3808AF 5-[4-(Butyrylamino)anilino]-5-oxopentanoic acid 940477-91-8 C15H20N2O4 (CAS 940477-91-8)
- 1-(1-Aminocyclobutyl)propan-2-ol (CAS 1132814-73-3)
- Fmoc-Val-Ser(Psi(Me,Me)pro)-OH (CAS 186023-49-4)
- 6-(Trifluoromethyl)tetrazolo[1,5-a]pyridine (CAS 143812-60-6)
- 5-Chloro-2-(pyrrolidin-1-yl)-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine (CAS 2096994-83-9)
- Methyl 2-[1-(3-hydroxyphenyl)-N-methylformamido]acetate (CAS 1020933-40-7)
- 3,4-Dichloro-5-nitroaniline (CAS 1806348-70-8)
- 2-Chloro-6-methylnicotinoyl chloride (CAS 39853-81-1)
- Methyl 3-{2-[(cyclopropylcarbamoyl)carbonyl]-1H-pyrrol-1-yl}-1-benzothiophene-2-carboxylate (CAS 477872-71-2)
- Semaglutide impurity 70 (CAS CATO-C4X-222670)
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