4-(5-Ethyl-1,2,4-oxadiazol-3-yl)-2-[(2-methylphenyl)methyl]-1H,2H,3H,5H,6H,7H,8H-pyrido[1,2-c]pyrimidine-1,3-dione CAS 1775503-62-2
| CAS No. | 1775503-62-2 |
| Molecular Formula | C20H22N4O3 |
| Molecular Weight | 366.41 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 4-(5-Ethyl-1,2,4-oxadiazol-3-yl)-2-[(2-methylphenyl)methyl]-1H,2H,3H,5H,6H,7H,8H-pyrido[1,2-c]pyrimidine-1,3-dione is closely related to a steroid core, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
4-(5-Ethyl-1,2,4-oxadiazol-3-yl)-2-[(2-methylphenyl)methyl]-1H,2H,3H,5H,6H,7H,8H-pyrido[1,2-c]pyrimidine-1,3-dione (CAS 1775503-62-2) is a high-purity analytical reference standard with the molecular formula C20H22N4O3 and a molecular weight of 366.41 g/mol.
Based on its molecular formula C20H22N4O3, 4-(5-Ethyl-1,2,4-oxadiazol-3-yl)-2-[(2-methylphenyl)methyl]-1H,2H,3H,5H,6H,7H,8H-pyrido[1,2-c]pyrimidine-1,3-dione contains a steroid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 366.41 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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-[(2-methylphenyl)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 | C20H22N4O3 |
| Molecular Weight | 366.41 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-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)
- 4-(5-Methyl-1,2,4-oxadiazol-3-yl)-2-[(3-methylphenyl)methyl]-1H,2H,3H,5H,6H,7H,8H,9H-pyrimido[1,6-a]azepine-1,3-dione (CAS 1775354-18-1)
- 4-(2-(3-(5-Ethyl-1,3,4-oxadiazol-2-yl)phenoxy)acetamido)benzamide (CAS 946275-52-1)
- 1-(1-(3-Methyl-1,2,4-oxadiazol-5-yl)cyclohexyl)-3-(2-(trifluoromethyl)phenyl)urea (CAS 1396799-37-3)
- 2-((5-Benzyl-1,3,4-oxadiazol-2-yl)thio)-N-(4-ethoxyphenyl)acetamide (CAS 332907-07-0)
- 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)
Recommended Standards
- 2-Benzyl-4-(5-ethyl-1,2,4-oxadiazol-3-yl)-1H,2H,3H,5H,6H,7H,8H,9H-pyrimido[1,6-a]azepine-1,3-dione (CAS 1775377-29-1)
- Fmoc-Cmpi-OH (CAS 180576-05-0)
- Bis-PEG4-sulfonic acid (CAS 1807539-08-7)
- Methyl 4-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)pyrrolidine-2-carboxylate (CAS 185304-44-3)
- (2-((2-Fluorophenyl)carbamoyl)phenyl)boronic acid (CAS 2096342-09-3)
- methyl carbamothioylformate (CAS 86563-22-6)
- Ethyl 3,5-diethyl-4-isoxazolecarboxylate (CAS 1211514-28-1)
- Tert-butyl 4-(((3-aminopyridin-2-yl)amino)methyl)piperidine-1-carboxylate (CAS 1233952-88-9)
- 1-bromo-2-phenyl-propene (CAS 3360-53-0)
- 2-(2-Ethoxy-5-methoxyphenyl)acetic acid (CAS 18086-33-4)
- (S)-tert-Butyl 3-((6-bromopyridin-2-yl)oxy)pyrrolidine-1-carboxylate (CAS 1314354-48-7)
- 94855-95-5 3-(Methylsulfanyl)aniline--hydrogen chloride (1/1) DTXSID70742223 (CAS 94855-95-5)
- 3-Fluoro-4-methoxybenzyl alcohol (CAS 96047-32-4)
- Neuropeptide Y (2-36) (human, rat) trifluoroacetate salt (CAS 123139-39-9)
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