| CAS No. | 31349-14-1 |
| Molecular Formula | C18H14ClN5O2S |
| Molecular Weight | 399.85 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
As a certified reference material (CRM), N'-((5-(4-Chlorobenzyl)-6-oxo-2-thioxo-1,2,3,6-tetrahydropyrimidin-4-yl)methylene)isonicotinohydrazide 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.
N'-((5-(4-Chlorobenzyl)-6-oxo-2-thioxo-1,2,3,6-tetrahydropyrimidin-4-yl)methylene)isonicotinohydrazide (CAS 31349-14-1), molecular formula C18H14ClN5O2S and molecular weight 399.85 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of N'-((5-(4-Chlorobenzyl)-6-oxo-2-thioxo-1,2,3,6-tetrahydropyrimidin-4-yl)methylene)isonicotinohydrazide (C18H14ClN5O2S) is characterized by a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.
| Molecular Formula | C18H14ClN5O2S |
| Molecular Weight | 399.85 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1965 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 5 |
| Sulfur Atoms | 1 |