4-Nitroso-1,3-diphenyl-1h-pyrazol-5-amine CAS 90012-56-9
| CAS No. | 90012-56-9 |
| Molecular Formula | C15H12N4O |
| Molecular Weight | 264.28 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 4-Nitroso-1,3-diphenyl-1h-pyrazol-5-amine (C15H12N4O) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. 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 264.28 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
4-Nitroso-1,3-diphenyl-1h-pyrazol-5-amine (CAS 90012-56-9) is a high-purity analytical reference standard with the molecular formula C15H12N4O and a molecular weight of 264.28 g/mol.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C15H12N4O |
| Molecular Weight | 264.28 g/mol |
| 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.) | 1982 |
| Nitrogen Atoms | 4 |
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- 4,5-Difluoro-2-(methoxycarbonyl)benzoic acid (CAS 1565972-46-4)
- N1-(3-Fluoro-4-methylphenyl)-N2-((tetrahydrofuran-2-yl)methyl)oxalamide (CAS 900001-30-1)
- 5,6,7,8-Tetrahydrocyclopenta[4,5]pyrrolo[2,3-b]pyridine (CAS 10299-71-5)
- Lysine Impurity 20 (CAS 1946-82-3)
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