| CAS No. | 955964-23-5 |
| Molecular Formula | C16H17N5O |
| Molecular Weight | 295.34 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 5-(2,5-Dimethyl-1H-pyrrol-1-yl)-1-phenyl-1H-pyrazole-4-carbohydrazide.
5-(2,5-Dimethyl-1H-pyrrol-1-yl)-1-phenyl-1H-pyrazole-4-carbohydrazide (CAS 955964-23-5) is a high-purity analytical reference standard with the molecular formula C16H17N5O and a molecular weight of 295.34 g/mol.
5-(2,5-Dimethyl-1H-pyrrol-1-yl)-1-phenyl-1H-pyrazole-4-carbohydrazide (C16H17N5O) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. Its physicochemical properties are representative of its class; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
| Molecular Formula | C16H17N5O |
| Molecular Weight | 295.34 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 5 |