| CAS No. | 302918-74-7 |
| Molecular Formula | C15H11ClN4OS |
| Molecular Weight | 330.79 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Compared with other compounds in its class, the molecular weight of 330.79 g/mol gives N'-Benzylidene-3-(5-chlorothiophen-2-yl)-1H-pyrazole-5-carbohydrazide distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
N'-Benzylidene-3-(5-chlorothiophen-2-yl)-1H-pyrazole-5-carbohydrazide (CAS 302918-74-7) is a high-purity analytical reference standard with the molecular formula C15H11ClN4OS and a molecular weight of 330.79 g/mol.
N'-Benzylidene-3-(5-chlorothiophen-2-yl)-1H-pyrazole-5-carbohydrazide (C15H11ClN4OS) contains a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, chlorine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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), N'-Benzylidene-3-(5-chlorothiophen-2-yl)-1H-pyrazole-5-carbohydrazide 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 | C15H11ClN4OS |
| Molecular Weight | 330.79 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |