Methyl (E)-3-benzamido-6-(2-(6-hydroxy-2,4-dioxo-1,2,3,4-tetrahydropyrimidin-5-yl)vinyl)-2-oxo-2H-pyran-5-carboxylate CAS 341966-37-8
| CAS No. | 341966-37-8 |
| Molecular Formula | C20H15N3O8 |
| Molecular Weight | 425.35 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Methyl (E)-3-benzamido-6-(2-(6-hydroxy-2,4-dioxo-1,2,3,4-tetrahydropyrimidin-5-yl)vinyl)-2-oxo-2H-pyran-5-carboxylate (CAS 341966-37-8), molecular formula C20H15N3O8 and molecular weight 425.35 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, Methyl (E)-3-benzamido-6-(2-(6-hydroxy-2,4-dioxo-1,2,3,4-tetrahydropyrimidin-5-yl)vinyl)-2-oxo-2H-pyran-5-carboxylate (C20H15N3O8) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 15.0, corresponding to approximately 15 ring(s) or double-bond equivalent(s). With a molecular weight of 425.35 g/mol, it falls into the moderately-high-molecular-weight range. 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).
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C20H15N3O8 |
| Molecular Weight | 425.35 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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 |
| Degree of Unsaturation (DBE) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 3 |
Recommended Standards
- Ethyl 4-{[3,5-bis(trifluoromethyl)phenyl]amino}-2-(methylsulfanyl)pyrimidine-5-carboxylate (CAS 339019-44-2)
- 6-Imino-2-oxo-5-[(E)-[(2E)-3-phenylprop-2-en-1-ylidene]amino]-1-[4-(trifluoromethoxy)phenyl]-1,2,3,6-tetrahydropyrimidine-4-carbonitrile (CAS 1048915-35-0)
- 4-[(Benzenesulfonyl)methyl]-6-[(2,4-dichlorophenyl)sulfanyl]-2-methylpyrimidine (CAS 338960-51-3)
- tert-Butyl 2-((5-bromothiophene-2-sulfonamido)methyl)pyrrolidine-1-carboxylate (CAS 1261230-34-5)
- 5-((4-Methoxyphenoxy)methyl)-1,3,4-thiadiazol-2-amine (CAS 364360-13-4)
- 2-(3,4-Dimethoxyphenyl)benzoic acid (CAS 1794-58-7)
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- 4-Methoxy-7-phenylindoline-2,3-dione (CAS 924633-51-2)
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- 1-(iodomethyl)-2-oxa-4-azabicyclo[3.1.1]heptan-3-one (CAS 2648965-41-5)
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