4-Hydroxy-3-iodobenzenesufonic Acid, Sodium Salt CAS 121208-93-3
| CAS No. | 121208-93-3 |
| Molecular Formula | C6H4IO4S |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 322.04 g/mol gives 4-Hydroxy-3-iodobenzenesufonic Acid, Sodium Salt distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
4-Hydroxy-3-iodobenzenesufonic Acid, Sodium Salt (CAS 121208-93-3) is a high-purity analytical reference standard with the molecular formula C6H4IO4SNa and a molecular weight of 322.04 g/mol.
Owing to a salt form, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, iodine substitution, an aromatic ring system, 4-Hydroxy-3-iodobenzenesufonic Acid, Sodium Salt is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 322.04 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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 | C6H4IO4S Na |
| Molecular Weight | 322.04 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| 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) | 4.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Halogen Content | I-containing |
| Sulfur Atoms | 1 |
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- Liraglutide(10-22)TFA Salt (CAS CATO-C4X-199211)
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