| CAS No. | 443352-76-9 |
| Molecular Formula | C17H23N3OS |
| Molecular Weight | 317.45 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
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.
3-[3-(4-Methylpiperidin-1-yl)propyl]-2-sulfanylidene-1,2,3,4-tetrahydroquinazolin-4-one (CAS 443352-76-9), molecular formula C17H23N3OS and molecular weight 317.45 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 3-[3-(4-Methylpiperidin-1-yl)propyl]-2-sulfanylidene-1,2,3,4-tetrahydroquinazolin-4-one (C17H23N3OS) contains a steroid core, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 317.45 g/mol, it falls into the moderately-high-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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.
| Molecular Formula | C17H23N3OS |
| Molecular Weight | 317.45 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |