6-fluoro-2-sulfanyl-3,4-dihydroquinazolin-4-one CAS 69661-42-3
| CAS No. | 69661-42-3 |
| Molecular Formula | C8H13FN2OS |
| Molecular Weight | 204.27 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 6-fluoro-2-sulfanyl-3,4-dihydroquinazolin-4-one.
6-fluoro-2-sulfanyl-3,4-dihydroquinazolin-4-one (CAS 69661-42-3), molecular formula C8H13FN2OS and molecular weight 204.27 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 6-fluoro-2-sulfanyl-3,4-dihydroquinazolin-4-one (C8H13FN2OS) is characterized by an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, fluorine 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. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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.
Physical & Chemical Properties
| Molecular Formula | C8H13FN2OS |
| Molecular Weight | 204.27 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1976 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
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