Ethyl (S)-6-amino-5-cyano-2-(2-ethoxy-2-oxoethyl)-4-(2-nitrophenyl)-4H-pyran-3-carboxylate CAS 294635-06-6
| CAS No. | 294635-06-6 |
| Molecular Formula | C19H19N3O7 |
| Molecular Weight | 401.37 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Ethyl (S)-6-amino-5-cyano-2-(2-ethoxy-2-oxoethyl)-4-(2-nitrophenyl)-4H-pyran-3-carboxylate is closely related to a flavonoid core, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies Ethyl (S)-6-amino-5-cyano-2-(2-ethoxy-2-oxoethyl)-4-(2-nitrophenyl)-4H-pyran-3-carboxylate (CAS 294635-06-6), a certified reference material (molecular formula C19H19N3O7, MW 401.37 g/mol) for analytical method development and quality control.
Structurally, Ethyl (S)-6-amino-5-cyano-2-(2-ethoxy-2-oxoethyl)-4-(2-nitrophenyl)-4H-pyran-3-carboxylate (C19H19N3O7) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 12.0, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 401.37 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), Ethyl (S)-6-amino-5-cyano-2-(2-ethoxy-2-oxoethyl)-4-(2-nitrophenyl)-4H-pyran-3-carboxylate 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 | C19H19N3O7 |
| Molecular Weight | 401.37 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 3 |
Recommended Standards
- 3-[3,5-Bis(trifluoromethyl)phenyl]-1-[2-(morpholin-4-yl)ethyl]thiourea (CAS 220635-34-7)
- Methyl 6-amino-4-(3-(2-amino-2-oxoethoxy)phenyl)-5-cyano-2-(2-methoxy-2-oxoethyl)-4H-pyran-3-carboxylate (CAS 498536-39-3)
- 2-(4,5-Dimethoxy-2-nitrophenyl)-1H-imidazo[4,5-b]phenazine (CAS 303059-18-9)
- n-(9-((2r,3r,4s,5r)-3,4-Dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-9h-purin-6-yl)-4-methoxybenzamide (CAS 56883-05-7)
- (2r,5r)-2,5-Diamino-6,6,6-trifluorohexanoic acid hydrochloride (CAS 1955473-60-5)
- 2-((3-Methoxypropyl)amino)-5-nitrobenzonitrile (CAS 923170-40-5)
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- Carbazochrome Impurity 26 (CAS CATO-C4X-229126)
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- 6-Bromo-2-(trifluoromethyl)pyrimidin-4-amine (CAS 1378259-23-4)
- Tributyl(2-ethoxyethenyl)stannane (CAS 20420-43-3)
- 1-Benzyl-2-imino-10-methyl-3-(phenylsulfonyl)-1H-dipyrido[1,2-a:2',3'-d]pyrimidin-5(2H)-one (CAS 370868-72-7)
- Neuropeptide Y (22-36) (CAS 119019-65-7)
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