| CAS No. | 5004-45-5 |
| Molecular Formula | C14H22N2O |
| Molecular Weight | 234.34 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 1(2H)-Phthalazinone, 4-phenyl- 4-Phenylphthalazin-1-one 5004-45-5 NSC-59 NSC59.
1(2H)-Phthalazinone, 4-phenyl- 4-Phenylphthalazin-1-one 5004-45-5 NSC-59 NSC59 (CAS 5004-45-5) is a high-purity analytical reference standard with the molecular formula C14H22N2O and a molecular weight of 234.34 g/mol.
Structurally, 1(2H)-Phthalazinone, 4-phenyl- 4-Phenylphthalazin-1-one 5004-45-5 NSC-59 NSC59 (C14H22N2O) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 234.34 g/mol, it falls into the medium-molecular-weight range. 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 | C14H22N2O |
| Molecular Weight | 234.34 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 2 |