(S)-4-Bromo-1-pyrrolidin-3-yl-1H-pyrazole dihydrochloride CAS 1428331-35-4
| CAS No. | 1428331-35-4 |
| Molecular Formula | C7H10BrN3 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
(S)-4-Bromo-1-pyrrolidin-3-yl-1H-pyrazole dihydrochloride (CAS 1428331-35-4), molecular formula C7H10BrN3HCl and molecular weight 252.54 g/mol, is a CATO reference standard with documented purity and traceability.
(S)-4-Bromo-1-pyrrolidin-3-yl-1H-pyrazole dihydrochloride (C7H10BrN3HCl) contains a nitrile group, chlorine/bromine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
As a certified reference material (CRM), (S)-4-Bromo-1-pyrrolidin-3-yl-1H-pyrazole dihydrochloride 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 2*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.) | 1991 |
| Halogen Content | Cl/Br-containing |
| Nitrogen Atoms | 3 |
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Recommended Standards
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- 4-Ethyl-5-methylthiophene-3-carbohydrazide (CAS 438225-41-3)
- 4'-(Methylsulfonyl)-[1,1'-biphenyl]-4-ol (CAS 13244-58-1)
- 1-(2-(2-Hydroxyethoxy)ethyl)-3-(1-methyl-1H-indol-3-yl)urea (CAS 923067-78-1)
- 4-Chloro-2,6-dimethoxy-5-pyrimidinecarboxaldehyde-13C (CAS 1391054-67-3)
- Methyl 2-((7-(3,4-dimethoxyphenyl)imidazo[1,2-c]pyrimidin-5-yl)amino)nicotinate (CAS 1956371-58-6)
- Palmitoyl Hexapeptide-12 TFA salt (CAS 171263-26-6(Free Base))
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