3-phenyl-1H,4H,5H,6H,7H-pyrazolo[4,3-c]pyridine dihydrochloride CAS 87628-50-0
| CAS No. | 87628-50-0 |
| Molecular Formula | C12H13N3 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-phenyl-1H,4H,5H,6H,7H-pyrazolo[4,3-c]pyridine dihydrochloride (CAS 87628-50-0), molecular formula C12H13N3HCl and molecular weight 235.72 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C12H13N3HCl, 3-phenyl-1H,4H,5H,6H,7H-pyrazolo[4,3-c]pyridine dihydrochloride contains a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 235.72 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C12H13N3 HCl |
| Molecular Weight | 235.72 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 | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1982 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Recommended Standards
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- 2-(Aminomethyl)phenol hydrochloride (CAS 61626-91-3)
- 5-(Hydroxymethyl)benzene-1,2,3-triol (CAS 68325-64-4)
- (S)-2-(((Benzyloxy)carbonyl)amino)-5-ureidopentanoic acid (CAS 6692-89-3)
- Tert-butyl 2-(1-imino-2-(3-(trifluoromethyl)phenoxy)ethyl)hydrazine-1-carboxylate (CAS 1053655-89-2)
- 3,5-Diacetylbenzonitrile (CAS 1393542-94-3)
- Ozagrel Impurity 16 (CAS CATO-C4X-197116)
- 1,2-Difluoro-4-(sulfinylamino)benzene (CAS 530102-74-0)
- Capecitabine Impurity 17 (CAS 38838-05-0)
- Semaglutide impurity 28 (CAS CATO-C4X-222628)
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