| CAS No. | 959575-87-2 |
| Molecular Formula | C12H9Cl2F3N4O2S |
| Molecular Weight | 401.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Compared with other compounds in its class, the molecular weight of 401.19 g/mol gives (e)-2-Chloro-n'-((5-chloro-1-methyl-3-(trifluoromethyl)-1h-pyrazol-4-yl)methylene)benzenesulfonohydrazide distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
(e)-2-Chloro-n'-((5-chloro-1-methyl-3-(trifluoromethyl)-1h-pyrazol-4-yl)methylene)benzenesulfonohydrazide (CAS 959575-87-2), molecular formula C12H9Cl2F3N4O2S and molecular weight 401.19 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C12H9Cl2F3N4O2S, (e)-2-Chloro-n'-((5-chloro-1-methyl-3-(trifluoromethyl)-1h-pyrazol-4-yl)methylene)benzenesulfonohydrazide contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 401.19 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.
CATO manufactures (e)-2-Chloro-n'-((5-chloro-1-methyl-3-(trifluoromethyl)-1h-pyrazol-4-yl)methylene)benzenesulfonohydrazide 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.
| Molecular Formula | C12H9Cl2F3N4O2S |
| Molecular Weight | 401.19 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |