2-Ethoxy-4-formylphenyl 4-methoxybenzoate CAS 443729-96-2
| CAS No. | 443729-96-2 |
| Molecular Formula | C17H16O5 |
| Molecular Weight | 300.31 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-Ethoxy-4-formylphenyl 4-methoxybenzoate (CAS 443729-96-2), molecular formula C17H16O5 and molecular weight 300.31 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 2-Ethoxy-4-formylphenyl 4-methoxybenzoate (C17H16O5) contains a flavonoid core, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 300.31 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C17H16O5 |
| Molecular Weight | 300.31 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 methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
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- 8-Methyl-3-phenyl-2H-indeno[2,1-b]furan-2-one (CAS 832100-00-2)
- Silver(I) 3,3'-methylenebis(naphthalene-2-sulfonate) (CAS 53370-43-7)
- 2-((2-(Acryloyloxy)ethoxy)carbonyl)benzoic acid (CAS 30697-40-6)
- 4-(5-Methyl-1,3,4-oxadiazol-2-yl)benzoic acid (CAS 892502-28-2)
- 2-BRomo-4-butoxy-1-fluorobenzene (CAS 1554983-64-0)
- 2-Phenyl-10H-oxazolo[5,4-a]carbazole (CAS 1650558-67-0)
- Ethyl 7-fluoro-3-methyl-1H-indole-2-carboxylate (CAS 866211-11-2)
- PACAP-Related Peptide (PRP), rat (CAS 132769-35-8)
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