3,4-Diethoxy-5-iodobenzaldehyde CAS 443291-33-6
| CAS No. | 443291-33-6 |
| Molecular Formula | C11H13IO3 |
| Molecular Weight | 320.12 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.
3,4-Diethoxy-5-iodobenzaldehyde (CAS 443291-33-6), molecular formula C11H13IO3 and molecular weight 320.12 g/mol, is a CATO reference standard with documented purity and traceability.
3,4-Diethoxy-5-iodobenzaldehyde (C11H13IO3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, iodine substitution, an aromatic ring system. It is notably hygroscopic, 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. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
As a certified reference material (CRM), 3,4-Diethoxy-5-iodobenzaldehyde 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 | C11H13IO3 |
| Molecular Weight | 320.12 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | I-containing |
Related Diethoxy Standards
- 3,5-Diethoxy-4-iodobenzaldehyde (CAS 338454-05-0)
- Methyl 3-(6,7-diethoxy-4-oxoquinolin-1(4H)-yl)propanoate (CAS 1279212-67-7)
- 1-((2,5-Diethoxy-4-methylphenyl)sulfonyl)-4-methyl-1H-imidazole (CAS 898640-97-6)
- [1-(Diethoxy-phosphoryl)-but-3-ynyl]-phosphonic acid diethyl ester (CAS 154384-16-4)
- Ethyl 3-(2,6-diethoxy-5-nitropyrimidin-4-yl)-2-oxopropanoate (CAS 93475-86-6)
- 1246819-38-4 2-(1,1-Diethoxy-2-methyl)propyl 4 inverted exclamation mark -Nitrophenyl Carbonate (CAS 1246819-38-4)
- 2,4-Diethoxy-1,3-difluoro-5-iodobenzene (CAS 1208078-14-1)
- 2,6-Diethoxy-1,5-dihydroxyanthracene-9,10-dione (CAS 92453-57-1)
Recommended Standards
- (4-Iodo-2-methyl-phenoxy)-acetic acid ethyl ester (CAS 636589-61-2)
- (4,5-Difluoro-2-((4-methylpiperazin-1-yl)sulfonyl)phenyl)boronic acid (CAS 1704067-49-1)
- 3-Iodo-4-isopropoxy-5-methoxybenzaldehyde (CAS 426221-01-4)
- Isobutyl 2-hydroxy-5-iodobenzoate (CAS 15206-70-9)
- Methyl (s)-3-amino-3-(3,4-dimethylphenyl)propanoate (CAS 1213152-27-2)
- 1-(3-(((2-Aminoethyl)(cyclopropyl)amino)methyl)pyrrolidin-1-yl)ethanone (CAS 1353974-66-9)
- Palladium(II) oxide (CAS 1314-08-5)
- 6-(Aminomethyl)-4-(trifluoromethyl)pyridin-2(1H)-one (CAS 1393566-05-6)
- (2-Chlorophenyl)methanesulfonamide (CAS 89665-79-2)
- 2-(2,4-Dichlorophenyl)-3a,4,5,6-tetrahydrocyclopenta[c]pyrazol-3(2H)-one (CAS 1304083-48-4)
- 1-[3-(Benzyloxy)propyl]-5-(2-oxopropyl)indoline-7-carbonitrile (CAS 1096141-50-2)
- Tropic acid (CAS 529-64-6)
- 2-(4-Nitro-1,2,5-oxadiazol-3-yl)acetic acid (CAS 186044-14-4)
- Semaglutide Impurity 12 (CAS CATO-C4X-222612)
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