N-(2-Hydroxy-5-iodophenyl)methanesulfonamide CAS 1243390-34-2
| CAS No. | 1243390-34-2 |
| Molecular Formula | C7H8INO3S |
| Molecular Weight | 313.11 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.
N-(2-Hydroxy-5-iodophenyl)methanesulfonamide (CAS 1243390-34-2) is a high-purity analytical reference standard with the molecular formula C7H8INO3S and a molecular weight of 313.11 g/mol.
Structurally, N-(2-Hydroxy-5-iodophenyl)methanesulfonamide (C7H8INO3S) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, iodine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 313.11 g/mol, it falls into the moderately-high-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C7H8INO3S |
| Molecular Weight | 313.11 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | I-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related N Standards
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- 3-Hydroxy-2,3-dimethylbutan-2-yl hydrogen (5-morpholinothiophen-3-yl)boronate (CAS 1498296-07-3)
- 3-Hydroxy-2,3-dimethylbutan-2-yl hydrogen (4-morpholinothiophen-2-yl)boronate (CAS 2223039-99-2)
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