| CAS No. | 613249-52-8 |
| Molecular Formula | C25H20N4OS |
| Molecular Weight | 424.52 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 4-((Anthracen-9-ylmethylene)amino)-3-(3-ethoxyphenyl)-1H-1,2,4-triazole-5(4H)-thione.
4-((Anthracen-9-ylmethylene)amino)-3-(3-ethoxyphenyl)-1H-1,2,4-triazole-5(4H)-thione (CAS 613249-52-8), molecular formula C25H20N4OS and molecular weight 424.52 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 4-((Anthracen-9-ylmethylene)amino)-3-(3-ethoxyphenyl)-1H-1,2,4-triazole-5(4H)-thione (C25H20N4OS) is characterized by a steroid core, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage. 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. 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), 4-((Anthracen-9-ylmethylene)amino)-3-(3-ethoxyphenyl)-1H-1,2,4-triazole-5(4H)-thione 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 | C25H20N4OS |
| Molecular Weight | 424.52 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 18.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |