Ethyl 5-amino-4-bromo-1-(pyridin-3-yl)-1H-pyrazole-3-carboxylate CAS 1427013-65-7
| CAS No. | 1427013-65-7 |
| Molecular Formula | C11H11BrN4O2 |
| Molecular Weight | 311.13 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Ethyl 5-amino-4-bromo-1-(pyridin-3-yl)-1H-pyrazole-3-carboxylate 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.
Ethyl 5-amino-4-bromo-1-(pyridin-3-yl)-1H-pyrazole-3-carboxylate (CAS 1427013-65-7), molecular formula C11H11BrN4O2 and molecular weight 311.13 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, Ethyl 5-amino-4-bromo-1-(pyridin-3-yl)-1H-pyrazole-3-carboxylate is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 311.13 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C11H11BrN4O2 |
| Molecular Weight | 311.13 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 4 |
Related Ethyl Standards
- Ethyl 5-amino-4-bromo-1-(pyridin-4-yl)-1H-pyrazole-3-carboxylate (CAS 1427013-64-6)
- Ethyl 5-amino-4-bromo-1-(pyridin-2-yl)-1H-pyrazole-3-carboxylate (CAS 1427021-73-5)
- ethyl 5-amino-1-(5-bromopyridin-2-yl)-1H-pyrazole-4-carboxylate (CAS 1483416-17-6)
- Ethyl 5-amino-1-(3-bromophenyl)-1H-1,2,3-triazole-4-carboxylate (CAS 272123-60-1)
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