7-Bromo-2,3-dihydro-1H-imidazo[1,2-b]pyrazole hydrobromide CAS 1776066-28-4
| CAS No. | 1776066-28-4 |
| Molecular Formula | C5H6BrN3 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 7-Bromo-2,3-dihydro-1H-imidazo[1,2-b]pyrazole hydrobromide (C5H6BrN3HBr) contains a nitrile group, bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 3.0, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 268.94 g/mol, it falls into the medium-molecular-weight range. 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).
7-Bromo-2,3-dihydro-1H-imidazo[1,2-b]pyrazole hydrobromide (CAS 1776066-28-4), molecular formula C5H6BrN3HBr and molecular weight 268.94 g/mol, is a CATO reference standard with documented purity and traceability.
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.
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 | C5H6BrN3 HBr |
| Molecular Weight | 268.94 g/mol |
| Appearance | White to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| 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.) | 1994 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 3 |
Related Bromo Standards
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Recommended Standards
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- 5-(Butylamino)-2-phenyl-7H-pyrrolo[3,4-b]pyridin-7-one (CAS 922523-02-2)
- H-Leu-Arg-Leu-OH hydrochloride salt (CAS 45297-39-0)
- Pitolisant impurity 20 (CAS CATO-C4X-252020)
- 1-(3-Methoxybenzyl)-1H-imidazole-2-carboxylic acid (CAS 1439900-53-4)
- Pregnanolone Sulfate Pyridinium Salt (CAS 124107-39-7)
- Ethyl 4-(chloromethyl)-5-ethylisoxazole-3-carboxylate (CAS 1119449-80-7)
- Semaglutide impound 212 (CAS CATO-C4X-2226212)
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