| CAS No. | 439110-64-2 |
| Molecular Formula | C27H23N3O2S3 |
| Molecular Weight | 517.69 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
The occurrence of Methyl 2-((7,9-dimethyl-2-((4-methylbenzyl)thio)pyrido[3',2':4,5]thieno[3,2-d]pyrimidin-4-yl)thio)benzoate is closely related to a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Methyl 2-((7,9-dimethyl-2-((4-methylbenzyl)thio)pyrido[3',2':4,5]thieno[3,2-d]pyrimidin-4-yl)thio)benzoate (CAS 439110-64-2) is a high-purity analytical reference standard with the molecular formula C27H23N3O2S3 and a molecular weight of 517.69 g/mol.
The molecular framework of Methyl 2-((7,9-dimethyl-2-((4-methylbenzyl)thio)pyrido[3',2':4,5]thieno[3,2-d]pyrimidin-4-yl)thio)benzoate (C27H23N3O2S3) is characterized by a steroid core, an amide group, a sulfone 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 aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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), Methyl 2-((7,9-dimethyl-2-((4-methylbenzyl)thio)pyrido[3',2':4,5]thieno[3,2-d]pyrimidin-4-yl)thio)benzoate 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 | C27H23N3O2S3 |
| Molecular Weight | 517.69 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 18.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 3 |