3-Bromo-5-methyl-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrazine CAS 1782045-58-2
| CAS No. | 1782045-58-2 |
| Molecular Formula | C7H10BrN3 |
| Molecular Weight | 216.08 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of 3-Bromo-5-methyl-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrazine (C7H10BrN3) is characterized by a nitrile group, bromine substitution, an aromatic ring system. 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. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
CATO supplies 3-Bromo-5-methyl-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrazine (CAS 1782045-58-2), a certified reference material (molecular formula C7H10BrN3, MW 216.08 g/mol) for analytical method development and quality control.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), 3-Bromo-5-methyl-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrazine 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.
Physical & Chemical Properties
| Molecular Formula | C7H10BrN3 |
| Molecular Weight | 216.08 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 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
- 3-Bromo-4-ethoxyaniline (CAS 101251-12-1)
- (3-Bromo-2-methoxyphenyl)methanamine (CAS 1044256-84-9)
- 3-Bromo-2-ethoxy-4-methylpyridine (CAS 1060812-96-5)
- 6-Bromo-3-methoxy-2,4-dimethylpyridine (CAS 1062541-77-8)
- (4-Bromo-2-methoxyphenyl)methanamine (CAS 1071037-16-5)
- 2-Bromo-6-ethoxyaniline (CAS 1072945-59-5)
- 5-Bromo-3-methoxy-2-methylaniline (CAS 1082040-45-6)
- 6-Bromo-3-methoxy-2-methylaniline (CAS 1089144-40-0)
Recommended Standards
- 3-Bromo-1-isopropylpyridin-2(1h)-one (CAS 1780774-80-2)
- 5-Bromo-3-cyclobutyl-1-methyl-1H-1,2,4-triazole (CAS 1784406-82-1)
- 4-Bromo-1,2,5-trimethyl-1H-pyrrole-3-carbaldehyde (CAS 1710696-21-1)
- 1-(5-Bromo-3-methylpyridin-2-yl)ethanol (CAS 1784825-00-8)
- 4-(4-fluorobenzoyl)-1-(4-fluorobenzyl)-3-methyl-3,4-dihydroquinoxalin-2(1H)-one (CAS 1007920-86-6)
- 2-Bromo-6-(3-methyl-1H-pyrazol-1-yl)pyridine (CAS 853748-41-1)
- Epirubicinol (CAS 76155-56-1)
- N-(3-((5-Cyclopropyl-2-((2-methyl-1,2,3,4-tetrahydroisoquinolin-6-yl)amino)pyrimidin-4-yl)amino)propyl)cyclobutanecarboxamide (CAS 1190379-70-4)
- (R)-5-(4-fluorophenyl)pyrrolidin-2-one (CAS 890853-47-1)
- 2-Bromo-4-(trifluoromethyl)benzylamine hydrochloride (CAS 1214382-77-0)
- Ligustrazine Phosphate (CAS 1124-11-4)
- Tert-butyl (E)-(4-(2-(6-(2-(2-(2-hydroxyethoxy)ethoxy)ethoxy)pyridin-3-yl)vinyl)phenyl)(methyl)carbamate (CAS 1234208-02-6)
- Ethyl (5-benzyl-1,3,4-thiadiazol-2-yl)carbamate (CAS 62441-45-6)
- Semaglutide Impurity 165 (CAS CATO-C4X-2226165)
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