2,4-Dimethyl-5,6-dihydropyrido[2,3-d]pyrimidin-7(8H)-one CAS 145733-63-7
| CAS No. | 145733-63-7 |
| Molecular Formula | C9H11N3O |
| Molecular Weight | 177.20 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 2,4-Dimethyl-5,6-dihydropyrido[2,3-d]pyrimidin-7(8H)-one 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.
2,4-Dimethyl-5,6-dihydropyrido[2,3-d]pyrimidin-7(8H)-one (CAS 145733-63-7) is a high-purity analytical reference standard with the molecular formula C9H11N3O and a molecular weight of 177.20 g/mol.
The molecular framework of 2,4-Dimethyl-5,6-dihydropyrido[2,3-d]pyrimidin-7(8H)-one (C9H11N3O) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, 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 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.
Physical & Chemical Properties
| Molecular Formula | C9H11N3O |
| Molecular Weight | 177.20 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1998 |
| Nitrogen Atoms | 3 |
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