4-Bromo-3-(tert-butyl)-1-methyl-1h-pyrazole CAS 1522545-08-9
| CAS No. | 1522545-08-9 |
| Molecular Formula | C8H13BrN2 |
| Molecular Weight | 217.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Bromo-3-(tert-butyl)-1-methyl-1h-pyrazole (CAS 1522545-08-9) is a high-purity analytical reference standard with the molecular formula C8H13BrN2 and a molecular weight of 217.11 g/mol.
The molecular framework of 4-Bromo-3-(tert-butyl)-1-methyl-1h-pyrazole (C8H13BrN2) is characterized by a nitrile group, 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. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 4-Bromo-3-(tert-butyl)-1-methyl-1h-pyrazole 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 | C8H13BrN2 |
| Molecular Weight | 217.11 g/mol |
| Appearance | 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1992 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
Related Bromo Standards
- 4-Bromo-1-t-butyl-3-methylpyrazole (CAS 1187385-83-6)
- 5-Bromo-3-(tert-butyl)-1-methyl-1H-pyrazole (CAS 1187968-59-7)
- 4-Bromo-3,5-dimethyl-1-propyl-1h-pyrazole (CAS 1205195-05-6)
- 4-(3-Bromo-2-methylpropyl)-1-methyl-1h-pyrazole (CAS 1341810-24-9)
- 4-Bromo-3-isobutyl-1-methyl-1H-pyrazole (CAS 1499068-43-7)
- 4-Bromo-3,5-diethyl-1-methyl-1H-pyrazole (CAS 1545093-80-8)
- 5-BRomo-1-(3-methylbutyl)-1h-pyrazole (CAS 1549573-33-2)
- 4-Bromo-3-butyl-1-methyl-1H-pyrazole (CAS 1619238-51-5)
Recommended Standards
- 5-(3-Bromopropyl)-1,3-dimethyl-1h-pyrazole (CAS 1496644-17-7)
- 4-(4-Bromobutyl)-1-methyl-1h-pyrazole (CAS 1343174-56-0)
- 3-Bromo-1-neopentyl-1H-pyrazole (CAS 2159909-20-1)
- 1-(5-Bromopentyl)-1h-pyrazole (CAS 1341798-96-6)
- 2-Methyl-2-((7-phenyl-7H-pyrazolo[3,4-d][1,2,3]triazin-4-yl)amino)propan-1-ol (CAS 1257548-31-4)
- 3-(Trifluoromethyl)-1H-indene (CAS 134391-57-4)
- (1S,4R)-4-(Methoxycarbonyl)cyclobut-2-enecarboxylic acid (CAS 151715-95-6)
- 5-Bromo-2-fluoronicotinonitrile (CAS 1256821-83-6)
- 2-(6-Bromopyridin-2-yl)acetic acid (CAS 1093879-46-9)
- trans-4-Formylcyclohexanecarbonitrile (CAS 85872-47-5)
- N-Benzyl-9-pentyl-9H-purin-6-amine (CAS 64498-15-3)
- 2-Amino-1-methyl-5-nitrobenzimidazole Hydrobromide (CAS 1261079-64-4)
- [2-(3,5-dimethylphenoxy)ethyl](methyl)amine (CAS 875159-76-5)
- Tirzepatide Impurity 21 X TFA Salt (CAS CATO-C4X-324021)
Why CATO?
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