4-Bromo-3-(bromomethyl)-1-methyl-1H-pyrazole hydrobromide CAS 2126177-73-7
| CAS No. | 2126177-73-7 |
| Molecular Formula | C5H6Br2N2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Bromo-3-(bromomethyl)-1-methyl-1H-pyrazole hydrobromide (CAS 2126177-73-7) is a high-purity analytical reference standard with the molecular formula C5H6Br2N2HBr and a molecular weight of 334.84 g/mol.
Owing to a nitrile group, bromine substitution, 4-Bromo-3-(bromomethyl)-1-methyl-1H-pyrazole hydrobromide is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 334.84 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
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 | C5H6Br2N2 HBr |
| Molecular Weight | 334.84 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1997 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
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