3-Ethoxy-5-iodo-4-(1-naphthylmethoxy)benzaldehyde CAS 443125-48-2
| CAS No. | 443125-48-2 |
| Molecular Formula | C20H17IO3 |
| Molecular Weight | 432.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-Ethoxy-5-iodo-4-(1-naphthylmethoxy)benzaldehyde (C20H17IO3) contains a steroid core, a hydroxyl group, an ether linkage, iodine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
3-Ethoxy-5-iodo-4-(1-naphthylmethoxy)benzaldehyde (CAS 443125-48-2), molecular formula C20H17IO3 and molecular weight 432.25 g/mol, is a CATO reference standard with documented purity and traceability.
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), 3-Ethoxy-5-iodo-4-(1-naphthylmethoxy)benzaldehyde 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 | C20H17IO3 |
| Molecular Weight | 432.25 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | I-containing |
Related Ethoxy Standards
- 2-Ethoxy-4-formyl-6-iodophenyl benzenesulfonate (CAS 431999-59-6)
- Ethyl 6-(2-ethoxy-2-oxoacetyl)-7-iodo-5-methylpyrazolo[1,5-a]pyrimidine-2-carboxylate (CAS 1423742-69-1)
- 2-Ethoxy-4-formyl-6-iodophenyl 4-chlorobenzoate (CAS 431932-50-2)
- Methyl 3-ethoxy-4-((3-fluorobenzyl)oxy)-5-iodobenzoate (CAS 1706453-83-9)
- Methyl 3-ethoxy-4-((2-fluorobenzyl)oxy)-5-iodobenzoate (CAS 1706453-84-0)
- 3-Ethoxy-4-((3-fluorobenzyl)oxy)-5-iodobenzohydrazide (CAS 1706464-88-1)
- 2-(3-Ethoxy-4-propoxybenzylidene)-6-phenyl-2H-thiazolo[3,2-b][1,2,4]triazine-3,7-dione (CAS 617694-37-8)
- 5-(3-Ethoxy-4-((4-fluorobenzyl)oxy)benzylidene)-1,3-dimethyl-2-thioxodihydropyrimidine-4,6(1H,5H)-dione (CAS 6312-53-4)
Recommended Standards
- 2-({1-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]-1H-imidazol-2-yl}sulfanyl)-1-(4-chlorophenyl)ethan-1-one (CAS 339276-71-0)
- 3-Nitro-4-(p-tolyloxy)benzyl 3,4-dichlorobenzoate (CAS 338960-69-3)
- 1245816-17-4 2-[5-(Tributylstannyl)-1,3-thiazol-2-yl]propan-2-ol DTXSID40676723 (CAS 1245816-17-4)
- ethyl 1-(iodomethyl)-3-(2-methoxypyrimidin-5-yl)-2-oxabicyclo[2.2.2]octane-4-carboxylate (CAS 2731008-11-8)
- (Z)-[(2-Bromophenyl)methyl][(4-nitrophenyl)methylidene]oxidoazanium (CAS 939893-38-6)
- 2-(3-Bromobut-3-en-1-yl)-1,4-dichlorobenzene (CAS 951892-82-3)
- 5-(3-Methyl-1,2,4-oxadiazol-5-yl)pyrrolidin-3-ol hydrochloride (CAS 1707152-28-0)
- 1-(7,7-Dimethyl-2-oxobicyclo[2.2.1]heptan-1-yl)-N-((4-hydroxytetrahydro-2H-pyran-4-yl)methyl)methanesulfonamide (CAS 1798512-17-0)
- N-hydroxy-4-methyl-N-phenylbenzene-1-sulfonamide (CAS 38557-76-5)
- 4-Cyclobutylphenol (CAS 10292-59-8)
- Disperse Yellow 49 (CAS 6858-49-7)
- Ethyl 3-(hydroxymethyl)benzoate (CAS 34841-13-9)
- Tert-butyl 3-((isopropylamino)methyl)piperidine-1-carboxylate (CAS 1289386-34-0)
- Adrenal Peptide E, bovine (CAS 78355-50-7)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com