| CAS No. | 54167-77-0 |
| Molecular Formula | C4H9N3O |
| Molecular Weight | 115.13 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
CATO supplies 5-amino-1-methyl-1,2-dihydro-3H-pyrazol-3-one (CAS 54167-77-0), a certified reference material (molecular formula C4H9N3O, MW 115.13 g/mol) for analytical method development and quality control.
5-amino-1-methyl-1,2-dihydro-3H-pyrazol-3-one (C4H9N3O) contains 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.
As a certified reference material (CRM), 5-amino-1-methyl-1,2-dihydro-3H-pyrazol-3-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 | C4H9N3O |
| Molecular Weight | 115.13 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) | 2.0 |
| CAS Registry Year (est.) | 1972 |
| Nitrogen Atoms | 3 |