1-Methyl-5-(pyrrolidin-2-yl)-1H-pyrazole dihydrochloride CAS 2138222-46-3
| CAS No. | 2138222-46-3 |
| Molecular Formula | C8H13N3 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 187.67 g/mol gives 1-Methyl-5-(pyrrolidin-2-yl)-1H-pyrazole dihydrochloride distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
1-Methyl-5-(pyrrolidin-2-yl)-1H-pyrazole dihydrochloride (CAS 2138222-46-3), molecular formula C8H13N3HCl and molecular weight 187.67 g/mol, is a CATO reference standard with documented purity and traceability.
1-Methyl-5-(pyrrolidin-2-yl)-1H-pyrazole dihydrochloride (C8H13N3HCl) contains a nitrile group, chlorine 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 1-Methyl-5-(pyrrolidin-2-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 | C8H13N3 2*HCl |
| Molecular Weight | 187.67 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.) | 1997 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
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Recommended Standards
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- trans-3-Amino-1-Boc-4-hydroxypyrrolidine (CAS 148214-90-8)
- 3-(2,4-Dichlorobenzyl)pyrrolidine (CAS 1268011-58-0)
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- 2-Amino-N-[(1-cyanocyclopropyl)methyl]acetamide (CAS 1804130-03-7)
- (R)-2-amino-2-(4-fluoro-3-methylphenyl)ethan-1-ol (CAS 1212835-63-6)
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