| CAS No. | 79728-82-8 |
| Molecular Formula | C11H9N3OS |
| Molecular Weight | 231.27 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Compared with other compounds in its class, the molecular weight of 231.27 g/mol gives 2-((3-Methyl-4-oxo-3,4-dihydroquinazolin-2-yl)thio)acetonitrile distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
2-((3-Methyl-4-oxo-3,4-dihydroquinazolin-2-yl)thio)acetonitrile (CAS 79728-82-8) is a high-purity analytical reference standard with the molecular formula C11H9N3OS and a molecular weight of 231.27 g/mol.
Structurally, 2-((3-Methyl-4-oxo-3,4-dihydroquinazolin-2-yl)thio)acetonitrile (C11H9N3OS) contains a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 231.27 g/mol, it falls into the medium-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 2-((3-Methyl-4-oxo-3,4-dihydroquinazolin-2-yl)thio)acetonitrile 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 | C11H9N3OS |
| Molecular Weight | 231.27 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1979 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |