| CAS No. | 1951425-17-4 |
| Molecular Formula | C16H19N3O |
| Molecular Weight | 269.34 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
(R)-6-Methyl-7-((S)-1-phenylethyl)-5,6,7,8-tetrahydropyrido[3,4-d]pyrimidin-4-ol (CAS 1951425-17-4) is a high-purity analytical reference standard with the molecular formula C16H19N3O and a molecular weight of 269.34 g/mol.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, (R)-6-Methyl-7-((S)-1-phenylethyl)-5,6,7,8-tetrahydropyrido[3,4-d]pyrimidin-4-ol is typically pale yellow to yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 269.34 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
As a certified reference material (CRM), (R)-6-Methyl-7-((S)-1-phenylethyl)-5,6,7,8-tetrahydropyrido[3,4-d]pyrimidin-4-ol 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 | C16H19N3O |
| Molecular Weight | 269.34 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.) | 1996 |
| Nitrogen Atoms | 3 |