| CAS No. | 1389439-75-1 |
| Molecular Formula | C17H14ClN5 |
| Molecular Weight | 323.78 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
5-(2-Chlorophenyl)-3,8-dimethyl-2,10-dihydropyrazolo[3,4-b]pyrido[4,3-e][1,4]diazepine (CAS 1389439-75-1), molecular formula C17H14ClN5 and molecular weight 323.78 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 5-(2-Chlorophenyl)-3,8-dimethyl-2,10-dihydropyrazolo[3,4-b]pyrido[4,3-e][1,4]diazepine (C17H14ClN5) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 13.0, corresponding to approximately 13 ring(s) or double-bond equivalent(s). With a molecular weight of 323.78 g/mol, it falls into the moderately-high-molecular-weight range. 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).
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 | C17H14ClN5 |
| Molecular Weight | 323.78 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 5 |