3-Chloro-4-iodobenzoic acid CAS 58123-72-1
| CAS No. | 58123-72-1 |
| Molecular Formula | C7H4ClIO2 |
| Molecular Weight | 282.46 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 3-Chloro-4-iodobenzoic acid is closely related to a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine/iodine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
3-Chloro-4-iodobenzoic acid (CAS 58123-72-1) is a high-purity analytical reference standard with the molecular formula C7H4ClIO2 and a molecular weight of 282.46 g/mol.
3-Chloro-4-iodobenzoic acid (C7H4ClIO2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine/iodine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point, 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).
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 | C7H4ClIO2 |
| Molecular Weight | 282.46 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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.) | 1973 |
| Halogen Content | Cl/I-containing |
Related Chloro Standards
- 4-Chloro-2-hydroxy-3-iodobenzaldehyde (CAS 1009093-34-8)
- 5-Chloro-6-iodobenzo[d][1,3]dioxole (CAS 1012060-59-1)
- 3-Chloro-2-iodobenzoic Acid (CAS 123278-03-5)
- 2-Chloro-6-iodobenzoic Acid (CAS 13420-63-8)
- 5-Chloro-2-iodobenzoic Acid (CAS 13421-00-6)
- 2-Chloro-4-iodobenzoic acid (CAS 145343-76-6)
- 3-Chloro-5-iodobenzoic Acid (CAS 289039-25-4)
- 4-Chloro-3-iodobenzoic Acid (CAS 42860-04-8)
Recommended Standards
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- 5-Tetradecyltetrahydrofuran-2-one (CAS 502-26-1)
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- (4-(4-Bromophenoxy)phenyl)methanol (CAS 1039899-07-4)
- 2-(3-Methyl-5-(trifluoromethyl)-1H-pyrazol-1-yl)ethan-1-amine (CAS 1392274-36-0)
- Rosuvastatin Impurity 111 (CAS 404958-68-5)
- 4-(2-Formylphenyl)benzoic acid (CAS 205871-49-4)
- 4-Allyl-5-{[4-(1-methyl-1-phenylethyl)phenoxy]methyl}-4H-1,2,4-triazole-3-thiol (CAS 443863-07-8)
- His-Cyclic-Semaglutide (CAS CATO-C4X-2226182)
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