Ethyl 4-(3-formyl-4-oxo-4H-pyrido[1,2-a]pyrimidin-2-yl)piperazine-1-carboxylate CAS 636989-81-6
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 636989-81-6 |
| Molecular Formula | C16H18N4O4 |
| Molecular Weight | 330.34 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Ethyl 4-(3-formyl-4-oxo-4H-pyrido[1,2-a]pyrimidin-2-yl)piperazine-1-carboxylate (CAS 636989-81-6) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C16H18N4O4. Molecular weight: 330.34 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C16H18N4O4 |
| Molecular Weight | 330.34 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Nitrogen Atoms | 4 |
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Recommended Standards
- Ethyl 4-(2-oxo-2H-chromene-3-carbonyl)piperazine-1-carboxylate (CAS 325779-19-9)
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- 2-Bromo-4-nitro-1H-indole (CAS 161536-60-3)
- N-(2,6-Dibromo-4-fluorophenyl)-1-(diphenylphosphoryl)methanethioamide (CAS 680213-13-2)
- 2-(2-Chloroethyl)isoindolin-1-one (CAS 41575-23-9)
- Semaglutide impurity 62 (CAS CATO-C4X-222662)
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