5-Amino-1-tert-butyl-3-(1-naphthylmethyl)-4-cyanopyrazole CAS 221243-77-2
| CAS No. | 221243-77-2 |
| Molecular Formula | C19H20N4 |
| Molecular Weight | 304.39 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 5-Amino-1-tert-butyl-3-(1-naphthylmethyl)-4-cyanopyrazole is closely related to a nitrogen-containing heterocyclic scaffold, a nitrile group in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
5-Amino-1-tert-butyl-3-(1-naphthylmethyl)-4-cyanopyrazole (CAS 221243-77-2), molecular formula C19H20N4 and molecular weight 304.39 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 5-Amino-1-tert-butyl-3-(1-naphthylmethyl)-4-cyanopyrazole (C19H20N4) contains a nitrogen-containing heterocyclic scaffold, a nitrile group. The molecule exhibits a degree of unsaturation (DBE) of 12.0, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 304.39 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 5-Amino-1-tert-butyl-3-(1-naphthylmethyl)-4-cyanopyrazole meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C19H20N4 |
| Molecular Weight | 304.39 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2020 |
| Nitrogen Atoms | 4 |
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