(E)-4-(tert-butyl)-N'-((1-(thiazol-2-yl)-1H-pyrrol-2-yl)methylene)benzohydrazide CAS 691887-95-3
| CAS No. | 691887-95-3 |
| Molecular Formula | C19H20N4OS |
| Molecular Weight | 352.45 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(E)-4-(tert-butyl)-N'-((1-(thiazol-2-yl)-1H-pyrrol-2-yl)methylene)benzohydrazide (CAS 691887-95-3), molecular formula C19H20N4OS and molecular weight 352.45 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C19H20N4OS, (E)-4-(tert-butyl)-N'-((1-(thiazol-2-yl)-1H-pyrrol-2-yl)methylene)benzohydrazide contains a steroid core, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 352.45 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.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), (E)-4-(tert-butyl)-N'-((1-(thiazol-2-yl)-1H-pyrrol-2-yl)methylene)benzohydrazide 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.
Physical & Chemical Properties
| Molecular Formula | C19H20N4OS |
| Molecular Weight | 352.45 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Recommended Standards
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