Ethyl 3-acetamido-5-bromo-1-methyl-1H-pyrazole-4-carboxylate CAS 1017802-89-9
| CAS No. | 1017802-89-9 |
| Molecular Formula | C9H12BrN3O3 |
| Molecular Weight | 290.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 290.11 g/mol gives Ethyl 3-acetamido-5-bromo-1-methyl-1H-pyrazole-4-carboxylate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Ethyl 3-acetamido-5-bromo-1-methyl-1H-pyrazole-4-carboxylate (CAS 1017802-89-9), molecular formula C9H12BrN3O3 and molecular weight 290.11 g/mol, is a CATO reference standard with documented purity and traceability.
Ethyl 3-acetamido-5-bromo-1-methyl-1H-pyrazole-4-carboxylate (C9H12BrN3O3) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, bromine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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 | C9H12BrN3O3 |
| Molecular Weight | 290.11 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 methanol, ethanol, DMSO |
| 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1988 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 3 |
Related Ethyl Standards
- Methyl 2-acetamido-3-(2,6-dichlorophenyl)propanoate (CAS 1622069-55-9)
- 5-Acetamido-2-(trifluoroacetamido)benzoic acid (CAS 1098397-49-9)
- Ethyl 2-(5-acetamido-1,3-dioxoisoindolin-2-yl)acetate (CAS 2007915-64-0)
- 2-Acetamido-N-[(4-Fluorophenyl)Methyl]-2-Furan-2-Ylacetamide (CAS 124421-36-9)
- Ethyl 2-acetamido-4-phenylthiazole-5-carboxylate (CAS 113019-70-8)
- 2-(2-Acetamido-4-(p-tolyl)thiazol-5-yl)acetic acid (CAS 1181367-03-2)
- 2-Acetamido-N-(4-methoxyphenyl)thiophene-3-carboxamide (CAS 338777-29-0)
- (2-acetamido-4-tert-butyl-5-chloro-phenyl) acetate (CAS 2648339-22-2)
Recommended Standards
- Labetalol Impurity 30 (CAS CATO-C4X-246630)
- 2-(Benzo[d]oxazol-2-yl)-5-bromophenol (CAS 1159517-02-8)
- Apixaban Impurity 115 (CAS CATO-C4X-1088115)
- 5-Bromo-1-(tert-butoxycarbonyl)-1H-pyrrole-2-carboxylic acid (CAS 117657-41-7)
- (1R,6S)-3-Boc-3,8-diazabicyclo[4.2.0]octane (CAS 370882-99-8)
- 4-Ethyl-3-(2-fluorophenyl)-5-(methylthio)-4H-1,2,4-triazole (CAS 116850-64-7)
- 2-Bromo-1,3,4-trichlorobenzene (CAS 101654-34-6)
- Dibenzyl piperazine-1,4-dicarboxylate (CAS 102181-95-3)
- 2-amino-3-[(2-pyridin-2-ylethyl)thio]propanoic acid 99247-32-2 (CAS 99247-32-2)
- (Perfluorocyclohexyl)methyl methacrylate (CAS 25965-83-7)
- Phocaecholic Acid (CAS 105369-89-9)
- 3-Bromo-4-(2-methylpropoxy)benzenamine (CAS 1247349-99-0)
- 6797-44-0 1,2,3-Butanetrione, 1-phenyl-, 2-oxime 1-Phenylbutane-1,2,3-trione 2-oxime AI3-52395 EINECS 229-869-6 (CAS 6797-44-0)
- (Pro30,Tyr32,Leu34)-Neuropeptide Y (28-36) (CAS 161650-01-7)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com