| CAS No. | 56112-89-1 |
| Molecular Formula | C9H12N4 |
| Molecular Weight | 176.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
3-(3-Amino-5,6-dihydrocyclopenta[c]pyrazol-2(4H)-yl)propanenitrile (CAS 56112-89-1), molecular formula C9H12N4 and molecular weight 176.22 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C9H12N4, 3-(3-Amino-5,6-dihydrocyclopenta[c]pyrazol-2(4H)-yl)propanenitrile contains a nitrogen-containing heterocyclic scaffold, a nitrile group; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 176.22 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
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.
| Molecular Formula | C9H12N4 |
| Molecular Weight | 176.22 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1973 |
| Nitrogen Atoms | 4 |