| CAS No. | 314292-25-6 |
| Molecular Formula | C20H15N5O3S |
| Molecular Weight | 405.43 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
CATO manufactures 2-{2-[3-Methyl-5-oxo-1-(4-phenyl-1,3-thiazol-2-yl)-1,5-dihydro-4H-pyrazol-4-ylidene]hydrazino}benzoic acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
2-{2-[3-Methyl-5-oxo-1-(4-phenyl-1,3-thiazol-2-yl)-1,5-dihydro-4H-pyrazol-4-ylidene]hydrazino}benzoic acid (CAS 314292-25-6), molecular formula C20H15N5O3S and molecular weight 405.43 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C20H15N5O3S, 2-{2-[3-Methyl-5-oxo-1-(4-phenyl-1,3-thiazol-2-yl)-1,5-dihydro-4H-pyrazol-4-ylidene]hydrazino}benzoic acid contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 405.43 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.
| Molecular Formula | C20H15N5O3S |
| Molecular Weight | 405.43 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 5 |
| Sulfur Atoms | 1 |