Cyclopropyl(1H-pyrazol-4-yl)methanone hydrochloride CAS 2408958-28-9
| CAS No. | 2408958-28-9 |
| Molecular Formula | C7H8N2O |
| 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.
Cyclopropyl(1H-pyrazol-4-yl)methanone hydrochloride (CAS 2408958-28-9) is a high-purity analytical reference standard with the molecular formula C7H8N2OHCl and a molecular weight of 172.61 g/mol.
Cyclopropyl(1H-pyrazol-4-yl)methanone hydrochloride (C7H8N2OHCl) contains an amide group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C7H8N2O HCl |
| Molecular Weight | 172.61 g/mol |
| Appearance | Off-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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2000 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Cyclopropyl Standards
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Recommended Standards
- 2-Methoxy-4-methylpentanal (CAS 1545048-99-4)
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- 7-Chloro-5-fluoro-1,3-benzoxazole (CAS 192582-98-2)
- 5-(4-(Benzyloxy)phenyl)-N'-(2,5-dimethoxybenzylidene)-1H-pyrazole-3-carbohydrazide (CAS 302918-59-8)
- 6-Chloro-5-fluoro-quinoline-2-carboxylicacid (CAS 2250242-64-7)
- 3-(3-Bromo-4-fluorobenzyl)-5,5-dimethylimidazolidine-2,4-dione (CAS 1304902-28-0)
- (Z)-(4-chlorophenyl)(cyclopropyl)methanone oxime (CAS 71288-89-6)
- 7-Methylimidazo[1,2-a]pyrimidine-2-carboxylic acid (CAS 111984-00-0)
- Nerandomilast impurity 22 (CAS CATO-C4X-347322)
- Neuropeptide S (human) (CAS 412938-67-1)
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