3-bromo-2-ethyl-4H,5H,6H,7H-pyrazolo[1,5-a]pyrazine CAS 1780176-95-5
| CAS No. | 1780176-95-5 |
| Molecular Formula | C8H12BrN3 |
| Molecular Weight | 230.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, bromine substitution, 3-bromo-2-ethyl-4H,5H,6H,7H-pyrazolo[1,5-a]pyrazine is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 230.10 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.
CATO supplies 3-bromo-2-ethyl-4H,5H,6H,7H-pyrazolo[1,5-a]pyrazine (CAS 1780176-95-5), a certified reference material (molecular formula C8H12BrN3, MW 230.10 g/mol) for analytical method development and quality control.
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 | C8H12BrN3 |
| Molecular Weight | 230.10 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1994 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 3 |
Related bromo Standards
- 4-bromo-1-cyclopentyl-1H-pyrazol-3-amine (CAS 1006470-56-9)
- 5-Bromo-2-isopropoxyaniline (CAS 1019442-22-8)
- 2-((4-Bromo-3-methylphenyl)amino)ethan-1-ol (CAS 1020970-64-2)
- 3-Bromo-4-methoxy-N,N-dimethylaniline (CAS 102236-13-5)
- 3-Bromo-2-isobutoxypyridine (CAS 1060812-85-2)
- 2-Bromo-5-(tert-butoxy)pyridine (CAS 1086381-32-9)
- 2-Bromo-4-(tert-butoxy)pyridine (CAS 1086381-34-1)
- 4-Bromo-2-(1,1-dimethylethoxy)pyridine (CAS 1086381-36-3)
Recommended Standards
- γ-Amino-2-bromobenzenepropanol (CAS 171911-83-4)
- 1-Amino-2-(4-bromophenyl)propan-2-ol (CAS 179821-65-9)
- 4-Bromo-1-isobutylpyridin-2(1h)-one (CAS 1620698-93-2)
- 2-(2-amino-3-bromophenyl)propan-2-ol (CAS 1803605-28-8)
- n-(5,5-Dimethyl-7-oxo-4,5,6,7-tetrahydrobenzo[d]thiazol-2-yl)acetamide (CAS 92491-27-5)
- 3-(Trimethylsilyl)propanal (CAS 18146-03-7)
- Methyl 3-(methyl(neopentyl)amino)propanoate (CAS 1249359-09-8)
- (R)-tert-Butyl 1-(2-amino-3-fluorophenyl)pyrrolidin-3-ylcarbamate (CAS 1233860-03-1)
- 2-(3-(Pyridin-2-yl)-1,2,4-oxadiazol-5-yl)ethan-1-amine 2,2,2-trifluoroacetate (CAS 1262771-83-4)
- Palladium, [1,3-bis[2,6-bis(1-methylethyl)phenyl]-1,3-dihydro-2H-imidazol-2-ylidene]dichloro[4,5-dihydro-2-(4-methylphenyl)oxazole-κN3]-, (SP-4-1)- (CAS 1586000-48-7)
- 5-Fluoro-3-(furan-2-carbonyl)pyrimidine-2,4(1H,3H)-dione (CAS 65359-42-4)
- 5-Cyclopropyl-3-iodo-1H-pyrazolo[3,4-b]pyrazine (CAS 1934829-37-4)
- 6-Bromo-N-(2-methoxyethyl)pyridin-2-amine (CAS 1289080-58-5)
- Semaglutide Impurity 151 xTFA (CAS CATO-C4X-2226151)
Why CATO?
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