4-(5-Ethyl-1,2,4-oxadiazol-3-yl)-2-[2-(4-fluorophenoxy)ethyl]-1H,2H,3H,5H,6H,7H,8H-pyrido[1,2-c]pyrimidine-1,3-dione CAS 1775558-16-1
| CAS No. | 1775558-16-1 |
| Molecular Formula | C20H21FN4O4 |
| Molecular Weight | 400.40 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 4-(5-Ethyl-1,2,4-oxadiazol-3-yl)-2-[2-(4-fluorophenoxy)ethyl]-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.
CATO supplies 4-(5-Ethyl-1,2,4-oxadiazol-3-yl)-2-[2-(4-fluorophenoxy)ethyl]-1H,2H,3H,5H,6H,7H,8H-pyrido[1,2-c]pyrimidine-1,3-dione (CAS 1775558-16-1), a certified reference material (molecular formula C20H21FN4O4, MW 400.40 g/mol) for analytical method development and quality control.
Based on its molecular formula C20H21FN4O4, 4-(5-Ethyl-1,2,4-oxadiazol-3-yl)-2-[2-(4-fluorophenoxy)ethyl]-1H,2H,3H,5H,6H,7H,8H-pyrido[1,2-c]pyrimidine-1,3-dione contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 400.40 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C20H21FN4O4 |
| Molecular Weight | 400.40 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1994 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 4 |
Related Ethyl Standards
- 4-(5-Ethyl-1,2,4-oxadiazol-3-yl)-2-[(3-fluoro-4-methoxyphenyl)methyl]-1H,2H,3H,5H,6H,7H,8H-pyrido[1,2-c]pyrimidine-1,3-dione (CAS 1775484-66-6)
- 2-[4-(5-Methyl-1,2,4-oxadiazol-3-yl)-1,3-dioxo-1H,2H,3H,5H,6H,7H,8H,9H-pyrimido[1,6-a]azepin-2-yl]-N-(5-methyl-1,2-oxazol-3-yl)acetamide (CAS 1775346-41-2)
- 2-[4-(5-Ethyl-1,2,4-oxadiazol-3-yl)-1,3-dioxo-1H,2H,3H,5H,6H,7H,8H-pyrido[1,2-c]pyrimidin-2-yl]-N-(5-methyl-1,2-oxazol-3-yl)acetamide (CAS 1775420-90-0)
- 1-((5-Phenyl-1,2,4-oxadiazol-3-yl)methyl)-5-(3-(pyridin-4-yl)-1,2,4-oxadiazol-5-yl)pyridin-2(1H)-one (CAS 1396858-58-4)
- 2-((5-Benzyl-1,3,4-oxadiazol-2-yl)thio)-N-(4-bromophenyl)acetamide (CAS 220597-89-7)
- 2-[4-(5-Methyl-1,2,4-oxadiazol-3-yl)-1,3-dioxo-1H,2H,3H,5H,6H,7H,8H,9H-pyrimido[1,6-a]azepin-2-yl]-N-phenylacetamide (CAS 1775444-58-0)
- 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-(3-methylphenyl)acetamide (CAS 1775553-93-9)
- 2-((5-Benzyl-1,3,4-oxadiazol-2-yl)thio)-N-(3,5-dichlorophenyl)acetamide (CAS 336174-33-5)
Recommended Standards
- 2-(2-(4-(2-Fluorophenyl)piperazin-1-yl)ethyl)-7-nitro-2H-benzo[b][1,4]oxazin-3(4H)-one (CAS 860611-71-8)
- 2-Fluoro-N-(6-((2-((4-fluorophenyl)amino)-2-oxoethyl)thio)pyridazin-3-yl)benzamide (CAS 1021091-56-4)
- 2-(3-(Furan-2-yl)-6-(trifluoromethyl)thieno[3,2-b]pyridine-2-carbonyl)-N-methylhydrazine-1-carbothioamide (CAS 400085-53-2)
- 2-Fluoro-N-(6-((2-((2-fluorophenyl)amino)-2-oxoethyl)thio)pyridazin-3-yl)benzamide (CAS 1021060-77-4)
- 4-(3-Thioxo-3H-1,2-dithiol-5-yl)phenyl 2-(1-(4-chlorobenzoyl)-5-methoxy-2-methyl-1H-indol-3-yl)acetate (CAS 1000700-26-4)
- (1-(2-Chloro-4-fluorobenzyl)piperidin-4-yl)methanol (CAS 1241539-97-8)
- 2-(2-Methoxy-6-nitropyridin-4-yl)acetic acid (CAS 1393566-12-5)
- 1-((3-Chloro-5-(trifluoromethyl)pyridin-2-yl)(methyl)amino)-3-(phenylthio)-1H-pyrrole-2,5-dione (CAS 338772-53-5)
- 2-(Ethoxy(hydroxy)methylene)indolin-3-one (CAS 1356783-40-8)
- N-[4-(2,4-Dichlorophenoxy)butyl]-3-(trifluoromethyl)aniline (CAS 1040684-95-4)
- 2H-Benzimidazol-2-one, 6-chloro-1,3-dihydro-1-methyl-6-chloro-1-methyl-2,3-dihydro-1H-1,3-benzodiazol-2-one (CAS 15965-72-7)
- (R)-2-Amino-2-(6-(hydroxymethyl)pyridin-3-yl)ethan-1-ol (CAS 1213954-81-4)
- 0411AD 1185300-91-7 4-[(2-Propynyloxy)methyl]piperidine hydrochloride C9H16ClNO (CAS 1185300-91-7)
- Peptide Impurity 40 (CAS CATO-CPTD788840)
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