5-chloro-3-(trifluoromethyl)-1H-pyrazolo[4,3-b]pyridine CAS 1638768-23-6
| CAS No. | 1638768-23-6 |
| Molecular Formula | C7H11ClF3N3 |
| Molecular Weight | 229.63 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a nitrile group, fluorine/chlorine substitution, 5-chloro-3-(trifluoromethyl)-1H-pyrazolo[4,3-b]pyridine is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 229.63 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.
5-chloro-3-(trifluoromethyl)-1H-pyrazolo[4,3-b]pyridine (CAS 1638768-23-6) is a high-purity analytical reference standard with the molecular formula C7H11ClF3N3 and a molecular weight of 229.63 g/mol.
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 | C7H11ClF3N3 |
| Molecular Weight | 229.63 g/mol |
| 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 | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1993 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 3 |
Related chloro Standards
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