| CAS No. | 742116-60-5 |
| Molecular Formula | C24H19N5OS |
| Molecular Weight | 425.51 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 1-(1H-Indol-3-yl)-2-phenyl-2-((1-(o-tolyl)-1H-tetrazol-5-yl)thio)ethan-1-one.
1-(1H-Indol-3-yl)-2-phenyl-2-((1-(o-tolyl)-1H-tetrazol-5-yl)thio)ethan-1-one (CAS 742116-60-5), molecular formula C24H19N5OS and molecular weight 425.51 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C24H19N5OS, 1-(1H-Indol-3-yl)-2-phenyl-2-((1-(o-tolyl)-1H-tetrazol-5-yl)thio)ethan-1-one 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 425.51 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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
| Molecular Formula | C24H19N5OS |
| Molecular Weight | 425.51 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.) | 1986 |
| Nitrogen Atoms | 5 |
| Sulfur Atoms | 1 |