3-Iodo-n-methylbenzenesulfonamide CAS 1144522-75-7
| CAS No. | 1144522-75-7 |
| Molecular Formula | C7H8INO2S |
| Molecular Weight | 297.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-Iodo-n-methylbenzenesulfonamide (C7H8INO2S) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, 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. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
3-Iodo-n-methylbenzenesulfonamide (CAS 1144522-75-7), molecular formula C7H8INO2S and molecular weight 297.11 g/mol, is a CATO reference standard with documented purity and traceability.
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 | C7H8INO2S |
| Molecular Weight | 297.11 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; 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.) | 1989 |
| Halogen Content | I-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Iodo Standards
- 2-Iodo-N-methylbenzenesulfonamide (CAS 125259-03-2)
- 3-Iodo-2-methylbenzene-1-sulfonamide (CAS 1261554-76-0)
- 5-Iodo-2-methylbenzenesulfonamide (CAS 1261585-10-7)
- 3-Iodo-5-methylbenzene-1-sulfonamide (CAS 1261649-35-7)
- 4-Iodo-N-methylbenzene-1-sulfonamide (CAS 134283-64-0)
- 2-Iodo-4-methylbenzene-1-sulfonamide (CAS 200060-22-6)
- 3-Iodo-4-methylbenzene-1-sulfonamide (CAS 437604-15-4)
- 4-Iodo-3-methylbenzenesulfonamide (CAS 856195-85-2)
Recommended Standards
- n-(4-Iodophenyl)methanesulfonamide (CAS 102294-59-7)
- 2-(5-Bromo-2-oxopyridin-1(2h)-yl)-N-(1h-pyrazol-4-yl)acetamide (CAS 1153939-37-7)
- Methyl 5-(4-bromophenoxy)furan-2-carboxylate (CAS 952183-41-4)
- n-(2-Iodophenyl)methanesulfonamide (CAS 116547-92-3)
- 1-(4-methylpiperazin-1-yl)propan-2-ol (CAS 4223-94-3)
- 36257-55-3 2-[2-(Piperidin-1-ylsulfonyl)ethyl]-1H-isoindole-1,3(2H)-dione MFCD08339556 (CAS 36257-55-3)
- 4,4'-Difluoro-[1,1'-biphenyl]-2-carbaldehyde (CAS 1214374-20-5)
- (Tetrahydro-2h-pyran-4-yl)(thiophen-3-yl)methanamine (CAS 1342551-51-2)
- 2-[[(Guanidino)(imino)methyl]sulfanyl]ethanesulfonic Acid-d4 (CAS 1794941-90-4)
- N-(Chlorocarbonyl)benzimidoyl chloride (CAS 4547-71-1)
- 2-Nitro-1H-indole (CAS 193686-70-3)
- 1-(Prop-2-yn-1-yl)piperidin-4-ol (CAS 23003-05-6)
- 2,2-Dimethyl-3-(piperazin-1-yl)propanoic acid (CAS 1437793-61-7)
- Des-[Gly]31-Semaglutide (CAS CATO-C4X-2226156)
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