4-Ethoxy-3-iodobenzaldehyde CAS 184033-45-2
| CAS No. | 184033-45-2 |
| Molecular Formula | C9H9IO2 |
| Molecular Weight | 276.07 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 4-Ethoxy-3-iodobenzaldehyde.
4-Ethoxy-3-iodobenzaldehyde (CAS 184033-45-2), molecular formula C9H9IO2 and molecular weight 276.07 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, iodine substitution, an aromatic ring system, 4-Ethoxy-3-iodobenzaldehyde is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 276.07 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
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 | C9H9IO2 |
| Molecular Weight | 276.07 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; 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.) | 2009 |
| Halogen Content | I-containing |
Related Ethoxy Standards
- 2-Ethoxy-5-iodobenzaldehyde (CAS 2167581-54-4)
- 3-Ethoxy-4-iodobenzaldehyde (CAS 916344-27-9)
- 2-Ethoxy-4-(tetramethyl-1,3,2-dioxaborolan-2-yl)benzaldehyde (CAS 2098425-81-9)
- 3-Ethoxy-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzaldehyde (CAS 887921-58-6)
- 4-Ethoxy-3-methylpyridine 1-oxide (CAS 90087-16-4)
- 2-(3-Ethoxy-4,5-dimethylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 2377609-57-7)
- 2-(4-Ethoxy-3-ethylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 2121514-94-9)
- 2-(3-Ethoxy-2-(ethoxycarbonyl)-3-oxopropyl)malonic acid (CAS 2121-66-6)
Recommended Standards
- Ethyl 2-iodobenzoate (CAS 1829-28-3)
- 6-Iodochroman-4-ol (CAS 186639-32-7)
- N-Cyclopropyl-4-iodo-1H-pyrrole-2-carboxamide (CAS 1706452-66-5)
- 4-(Iodomethyl)phenyl acetate (CAS 19260-33-4)
- 2-(4-Aminopiperidin-1-yl)-1-methyl-1H-imidazol-5(4H)-one (CAS 1707394-62-4)
- Methyl 3-amino-4-(trifluoromethoxy)benzoate (CAS 721-09-5)
- 6-hydroxy-4-methyl-3,4-dihydro-2H-1-benzopyran-2-one (CAS 596812-08-7)
- Ethyl 2,4-difluoro-6-methylbenzoate (CAS 1806307-07-2)
- (E)-3-(4-Bromophenyl)-2-cyanoacrylic acid (CAS 58177-54-1)
- 3-Bromo-6-(trifluoromethyl)pyridin-2-amine (CAS 1214361-39-3)
- 4-(2,4-Difluorophenyl)-3,4-dihydrobenzo[4,5]imidazo[1,2-a][1,3,5]triazin-2-amine (CAS 930989-63-2)
- 4-Amino-6-(difluoromethyl)-5-iodonicotinic acid (CAS 1805961-50-5)
- Cyclopropyl(2-hydroxyphenyl)methanone (CAS 128405-69-6)
- Immunstimulating Peptide, human (CAS 94773-24-7)
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