4-(5-Ethyl-1,2,4-oxadiazol-3-yl)-2-[(4-methoxyphenyl)methyl]-1H,2H,3H,5H,6H,7H,8H-pyrido[1,2-c]pyrimidine-1,3-dione CAS 1775409-69-2
| CAS No. | 1775409-69-2 |
| Molecular Formula | C20H22N4O4 |
| Molecular Weight | 382.41 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-(5-Ethyl-1,2,4-oxadiazol-3-yl)-2-[(4-methoxyphenyl)methyl]-1H,2H,3H,5H,6H,7H,8H-pyrido[1,2-c]pyrimidine-1,3-dione (CAS 1775409-69-2), molecular formula C20H22N4O4 and molecular weight 382.41 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 4-(5-Ethyl-1,2,4-oxadiazol-3-yl)-2-[(4-methoxyphenyl)methyl]-1H,2H,3H,5H,6H,7H,8H-pyrido[1,2-c]pyrimidine-1,3-dione (C20H22N4O4) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 12.0, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 382.41 g/mol, it falls into the moderately-high-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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), 4-(5-Ethyl-1,2,4-oxadiazol-3-yl)-2-[(4-methoxyphenyl)methyl]-1H,2H,3H,5H,6H,7H,8H-pyrido[1,2-c]pyrimidine-1,3-dione 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.
Physical & Chemical Properties
| Molecular Formula | C20H22N4O4 |
| Molecular Weight | 382.41 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1994 |
| Nitrogen Atoms | 4 |
Related Ethyl Standards
- 4-(5-Ethyl-1,2,4-oxadiazol-3-yl)-2-[(3-methoxyphenyl)methyl]-1H,2H,3H,5H,6H,7H,8H-pyrido[1,2-c]pyrimidine-1,3-dione (CAS 1775468-57-9)
- 4-[(5-Methyl-1,3,4-oxadiazol-2-yl)methoxy]-1-(4-methylbenzenesulfonyl)-1H-indole (CAS 477856-99-8)
- 2-[4-(5-Methyl-1,2,4-oxadiazol-3-yl)-1,3-dioxo-1H,2H,3H,5H,6H,7H,8H-pyrido[1,2-c]pyrimidin-2-yl]-N-phenylacetamide (CAS 1775503-55-3)
- 4-(5-Ethyl-1,2,4-oxadiazol-3-yl)-2-[(4-fluorophenyl)methyl]-1H,2H,3H,5H,6H,7H,8H,9H-pyrimido[1,6-a]azepine-1,3-dione (CAS 1775353-05-3)
- 2-((5-Benzyl-1,3,4-oxadiazol-2-yl)thio)-N-(2-methyl-5-nitrophenyl)acetamide (CAS 332922-51-7)
- 5-(3-Phenyl-1,2,4-oxadiazol-5-yl)-3-(3,4,5-trimethoxyphenyl)-1,2,4-oxadiazole (CAS 1775529-74-2)
- 2-(4-(1,3,4-Oxadiazol-2-yl)phenoxy)-2-phenyl-N-(p-tolyl)acetamide (CAS 926852-86-0)
- 2-((5-Phenyl-1,3,4-oxadiazol-2-yl)thio)-N-(3-(trifluoromethyl)phenyl)acetamide (CAS 329080-16-2)
Recommended Standards
- Alkyne-PEG4-maleimide (CAS 1609651-90-2)
- 2-[(4-Methoxyphenyl)methyl]-4-(5-methyl-1,2,4-oxadiazol-3-yl)-1H,2H,3H,5H,6H,7H,8H,9H-pyrimido[1,6-a]azepine-1,3-dione (CAS 1775439-13-8)
- Spiro[fluorene-9,9'-xanthene]-2',7'-dicarbonitrile (CAS 152480-82-5)
- 6,7-Bis(benzyloxy)-4-oxo-1,4-dihydroquinoline-3-carbonitrile (CAS 1415564-53-2)
- CDK2 inhibitor II (CAS 222035-13-4)
- 6-Fluorotryptophan (CAS 7730-20-3)
- (5-(((1-Methoxypropan-2-yl)amino)methyl)furan-2-yl)methanol (CAS 1343124-96-8)
- 2'-Methoxy-[1,1'-biphenyl]-2-carbaldehyde (CAS 93465-26-0)
- 1,1,1-TRichloro-2,2,4,4,4-pentafluorobutane (CAS 380-63-2)
- 2-Amino-1-(2,5-difluorophenyl)-4,5-dimethyl-1H-pyrrole-3-carbonitrile (CAS 1094274-70-0)
- 4-Hydroxy-3-isopropylphenylboronic acid (CAS 1451390-86-5)
- 5-Bromo-3-formylpicolinic acid (CAS 1289071-04-0)
- 2-(2-Amino-2-oxoethyl)-1H-pyrrole-3-carboxylic acid (CAS 67464-87-3)
- Semaglutide impurity 75 (CAS CATO-C4X-222675)
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