(R)-4-Bromo-1-(pyrrolidin-3-yl)-1H-pyrazole hydrochloride CAS 2828444-30-8
| CAS No. | 2828444-30-8 |
| Molecular Formula | C7H10BrN3 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a nitrile group, chlorine/bromine substitution, (R)-4-Bromo-1-(pyrrolidin-3-yl)-1H-pyrazole hydrochloride is typically white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 252.54 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.
(R)-4-Bromo-1-(pyrrolidin-3-yl)-1H-pyrazole hydrochloride (CAS 2828444-30-8), molecular formula C7H10BrN3HCl and molecular weight 252.54 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 | C7H10BrN3 HCl |
| Molecular Weight | 252.54 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.) | 2003 |
| Halogen Content | Cl/Br-containing |
| Nitrogen Atoms | 3 |
Related R Standards
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Recommended Standards
- 3-Hydroxypiperidine-3-carboxylic acid (CAS 80546-90-3)
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- CAS 6971-40-0 (CAS 6971-40-0)
- 2-(3-methoxyazetidin-1-yl)ethan-1-amine (CAS 911300-65-7)
- 3-(Naphthalen-1-yl)quinoxaline-5-carboxylic acid (CAS 904818-32-2)
- Methyl 4-bromo-7-methoxybenzo[d][1,3]dioxole-5-carboxylate (CAS 81474-46-6)
- 1-(1-Methyl-6-oxo-4-(trifluoromethyl)-1,6-dihydropyrimidin-2-yl)piperidine-3-carboxylic acid (CAS 1707372-75-5)
- 3-Ethyl-1-methyl-3-imidazolium Perchlorate (CAS 65039-04-5)
- 2-Propoxyquinoline-4-carbonitrile (CAS 855165-17-2)
- Semaglutide impurity 229 (CAS CATO-C4X-2226229)
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