Ethyl 7-bromopyrazolo[1,5-a]pyrimidine-3-carboxylate CAS 1389302-26-4
| CAS No. | 1389302-26-4 |
| Molecular Formula | C9H8BrN3O2 |
| Molecular Weight | 270.08 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Ethyl 7-bromopyrazolo[1,5-a]pyrimidine-3-carboxylate (CAS 1389302-26-4), a certified reference material (molecular formula C9H8BrN3O2, MW 270.08 g/mol) for analytical method development and quality control.
The molecular framework of Ethyl 7-bromopyrazolo[1,5-a]pyrimidine-3-carboxylate (C9H8BrN3O2) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, bromine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C9H8BrN3O2 |
| Molecular Weight | 270.08 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 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.) | 1991 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 3 |
Related Ethyl Standards
- Ethyl 6-bromopyrazolo[1,5-a]pyrimidine-2-carboxylate (CAS 1005209-42-6)
- Ethyl 6-Bromopyrazolo[1,5-a]pyrimidine-3-carboxylate (CAS 1027511-41-6)
- Ethyl 7-bromopyrazolo[1,5-a]pyrimidine-2-carboxylate (CAS 1251016-38-2)
- Ethyl 3-bromopyrazolo[1,5-a]pyrimidine-2-carboxylate (CAS 1394004-05-7)
- Ethyl 3-bromopyrazolo[1,5-c]pyrimidine-5-carboxylate (CAS 2767264-83-3)
- Ethyl 5-bromopyrazolo[1,5-α]pyridine-3-carboxylate (CAS 885276-93-7)
- Ethyl 7-bromopyrazolo[1,5-a]pyridine-3-carboxylate (CAS 885276-77-7)
- ethyl 2-bromopyrazolo[5,1-b]thiazole-7-carboxylate (CAS 2796324-10-0)
Recommended Standards
- 1-(4-Bromophenyl)-2-oxoazetidine-3-carboxylic acid (CAS 1368934-58-0)
- 2-(4-Bromo-2-oxoindolin-3-yl)acetic acid (CAS 1368926-22-0)
- Ethyl 6-bromo-1H-pyrazolo[3,4-b]pyridine-4-carboxylate (CAS 1396779-46-6)
- 2-(5-bromo-2-oxo-2,3-dihydro-1H-indol-3-yl)acetic acid (CAS 1368757-01-0)
- 1-[2-(4-Piperidinyl)ethyl]indoline dihydrochloride (CAS 1220018-20-1)
- 7-Iodonaphthalen-2-amine (CAS 845464-04-2)
- N,N-Diethyl-N-hydroxy-ethylenediamine (CAS 55845-75-5)
- 8-(Azetidin-3-ylmethoxy)quinoline (CAS 1706441-23-7)
- Ethyl 2-(2,4-dichlorophenyl)acetimidate (CAS 5922-05-4)
- 1001499-99-5 3-(3-Methyl-4-nitro-pyrazol-1-yl)-propionic acid methyl ester 3-(3-methyl-4-nitro-pyrazol-1-yl)-propionic acid m ethyl ester (CAS 1001499-99-5)
- 2-Bromo-3-(4-carboethoxyphenyl)-1-propene (CAS 148252-42-0)
- 1-(Cyclobutylmethyl)-3-(trifluoromethyl)-1h-pyrazole-5-carboxylic acid (CAS 2197054-34-3)
- 2-(3,4-Dimethylphenoxy)propanoic acid (CAS 25141-00-8)
- Tirzepatide Impurity 46 (CAS CATO-C4X-324046)
Why CATO?
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