| CAS No. | 59682-61-0 |
| Molecular Formula | C4H6N4O2 |
| Molecular Weight | 142.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
5-Imino-3-oxopyrazolidine-1-carboxamide (CAS 59682-61-0) is a high-purity analytical reference standard with the molecular formula C4H6N4O2 and a molecular weight of 142.12 g/mol.
Based on its molecular formula C4H6N4O2, 5-Imino-3-oxopyrazolidine-1-carboxamide contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 142.12 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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-Imino-3-oxopyrazolidine-1-carboxamide 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 | C4H6N4O2 |
| Molecular Weight | 142.12 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1974 |
| Nitrogen Atoms | 4 |