Ethyl 2-bromo-5,7-dichloropyrazolo[1,5-a]pyrimidine-3-carboxylate CAS 2648449-74-3
| CAS No. | 2648449-74-3 |
| Molecular Formula | C9H6BrCl2N3O2 |
| Molecular Weight | 338.97 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Ethyl 2-bromo-5,7-dichloropyrazolo[1,5-a]pyrimidine-3-carboxylate (CAS 2648449-74-3), molecular formula C9H6BrCl2N3O2 and molecular weight 338.97 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C9H6BrCl2N3O2, Ethyl 2-bromo-5,7-dichloropyrazolo[1,5-a]pyrimidine-3-carboxylate contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine/bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 338.97 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures Ethyl 2-bromo-5,7-dichloropyrazolo[1,5-a]pyrimidine-3-carboxylate 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 | C9H6BrCl2N3O2 |
| Molecular Weight | 338.97 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2002 |
| Halogen Content | Cl/Br-containing |
| Nitrogen Atoms | 3 |
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