4-(5-Ethyl-1,2,4-oxadiazol-3-yl)-2-[(3-fluorophenyl)methyl]-1H,2H,3H,5H,6H,7H,8H-pyrido[1,2-c]pyrimidine-1,3-dione CAS 1775353-73-5
| CAS No. | 1775353-73-5 |
| Molecular Formula | C19H19FN4O3 |
| Molecular Weight | 370.38 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 4-(5-Ethyl-1,2,4-oxadiazol-3-yl)-2-[(3-fluorophenyl)methyl]-1H,2H,3H,5H,6H,7H,8H-pyrido[1,2-c]pyrimidine-1,3-dione.
4-(5-Ethyl-1,2,4-oxadiazol-3-yl)-2-[(3-fluorophenyl)methyl]-1H,2H,3H,5H,6H,7H,8H-pyrido[1,2-c]pyrimidine-1,3-dione (CAS 1775353-73-5), molecular formula C19H19FN4O3 and molecular weight 370.38 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution, 4-(5-Ethyl-1,2,4-oxadiazol-3-yl)-2-[(3-fluorophenyl)methyl]-1H,2H,3H,5H,6H,7H,8H-pyrido[1,2-c]pyrimidine-1,3-dione is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 370.38 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
CATO manufactures 4-(5-Ethyl-1,2,4-oxadiazol-3-yl)-2-[(3-fluorophenyl)methyl]-1H,2H,3H,5H,6H,7H,8H-pyrido[1,2-c]pyrimidine-1,3-dione under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C19H19FN4O3 |
| Molecular Weight | 370.38 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| 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; 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-[(2-fluorophenyl)methyl]-1H,2H,3H,5H,6H,7H,8H-pyrido[1,2-c]pyrimidine-1,3-dione (CAS 1775345-51-1)
- 4-(5-Ethyl-1,2,4-oxadiazol-3-yl)-2-[(4-fluorophenyl)methyl]-1H,2H,3H,5H,6H,7H,8H-pyrido[1,2-c]pyrimidine-1,3-dione (CAS 1775468-46-6)
- 2-((5-Benzyl-1,3,4-oxadiazol-2-yl)thio)-N-(1-cyanocyclohexyl)propanamide (CAS 875160-93-3)
- 2-((5-Benzyl-1,3,4-oxadiazol-2-yl)thio)-N-(4-ethoxyphenyl)acetamide (CAS 332907-07-0)
- 1-(1-(3-Methyl-1,2,4-oxadiazol-5-yl)cyclohexyl)-3-(2-(trifluoromethyl)phenyl)urea (CAS 1396799-37-3)
- 4-(5-Ethyl-1,2,4-oxadiazol-3-yl)-2-[(3-methylphenyl)methyl]-1H,2H,3H,5H,6H,7H,8H-pyrido[1,2-c]pyrimidine-1,3-dione (CAS 1775345-57-7)
- 4-(5-Methyl-1,2,4-oxadiazol-3-yl)-2-[(4-methylphenyl)methyl]-1H,2H,3H,5H,6H,7H,8H,9H-pyrimido[1,6-a]azepine-1,3-dione (CAS 1775346-13-8)
- 4-(5-Methyl-1,2,4-oxadiazol-3-yl)-2-[(2-methylphenyl)methyl]-1H,2H,3H,5H,6H,7H,8H,9H-pyrimido[1,6-a]azepine-1,3-dione (CAS 1775354-03-4)
Recommended Standards
- 2-[(3-Fluorophenyl)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 1775354-05-6)
- Falecalcitriol impurity 6 (CAS CATO-C4X-31416)
- 4-[(4-Fluorophenyl)methyl]-3-[1-(furan-2-carbonyl)piperidin-4-yl]-4,5-dihydro-1H-1,2,4-triazol-5-one (CAS 1775410-55-3)
- Tegoprazan Impurity 120 (CAS CATO-C4X-2297120)
- 1H-pyrano[4,3-c]pyridin-4-one (CAS 2306276-03-7)
- N1-(benzo[d][1,3]dioxol-5-ylmethyl)-N2,N2-diethyloxalamide (CAS 680983-19-1)
- (4-(Dimethylamino)-3-methylphenyl)methanol (CAS 773871-29-7)
- 3-(sec-Butylamino)propanohydrazide (CAS 22411-65-0)
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- 4-Bromo-1-ethyl-5-nitro-1H-pyrazole (CAS 1439820-86-6)
- Methyl (2-cyanoethyl)-D-alaninate (CAS 1379441-80-1)
- Hexyl 2-hydroxy-5-iodobenzoate (CAS 15125-93-6)
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