| CAS No. | 13580-90-0 |
| Molecular Formula | C9H17N3O |
| Molecular Weight | 183.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
4-(methylamino)-1,2-dihydrophthalazin-1-one (CAS 13580-90-0) is a high-purity analytical reference standard with the molecular formula C9H17N3O and a molecular weight of 183.25 g/mol.
Based on its molecular formula C9H17N3O, 4-(methylamino)-1,2-dihydrophthalazin-1-one contains an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 183.25 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
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.
As a certified reference material (CRM), 4-(methylamino)-1,2-dihydrophthalazin-1-one 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.
| Molecular Formula | C9H17N3O |
| Molecular Weight | 183.25 g/mol |
| Appearance | White to pale yellow crystalline powder. (faint amine-like odor) |
| 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1960 |
| Nitrogen Atoms | 3 |