5-Bromo-2-iodo-n-methylbenzenesulfonamide CAS 273208-20-1
| CAS No. | 273208-20-1 |
| Molecular Formula | C7H7BrINO2S |
| Molecular Weight | 376.01 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 376.01 g/mol gives 5-Bromo-2-iodo-n-methylbenzenesulfonamide distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
5-Bromo-2-iodo-n-methylbenzenesulfonamide (CAS 273208-20-1), molecular formula C7H7BrINO2S and molecular weight 376.01 g/mol, is a CATO reference standard with documented purity and traceability.
5-Bromo-2-iodo-n-methylbenzenesulfonamide (C7H7BrINO2S) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine/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.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 5-Bromo-2-iodo-n-methylbenzenesulfonamide under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C7H7BrINO2S |
| Molecular Weight | 376.01 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| 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.) | 2025 |
| Halogen Content | Br/I-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
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Recommended Standards
- Macitentan Impurity 17 (CAS 2211054-90-7)
- 1,5-Diamino-2,4,6,8-tetrachloroanthracene-9,10-dione (CAS 83578-91-0)
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- 2K-571S 338774-53-1 6,8-dichloro-2-(2,4-dichlorophenyl)-3-hydroxy-3,4-dihydroquinazolin-4-one (CAS 338774-53-1)
- 5-amino-N-methyl-1H-pyrazole-3-carboxamide (CAS 1219743-33-5)
- Ethyl 2-(5-chloro-2-methylphenyl)-2-oxoacetate (CAS 1256482-09-3)
- 3-(3,3-Difluoropiperidin-1-yl)picolinaldehyde (CAS 1707581-13-2)
- 2-CHloro-n,n-diethyl-4-hydroxybenzamide (CAS 1394953-48-0)
- Demethyl Benzydamine-d3 Hydrochloride (CAS 1246817-08-2)
- Methyl 4-(4-chlorophenyl)-3-(chlorosulfonyl)thiophene-2-carboxylate (CAS 1291486-73-1)
- tert-Butyl (R)-(5,5-difluoropiperidin-3-yl)carbamate (CAS 2089320-98-7)
- 3-Ethylphenylboronic Acid (CAS 90555-65-0)
- 2-(BRomomethyl)-3-chlorophenol (CAS 1261514-67-3)
- FMRF-Like Neuropeptide (CAS 121801-61-4)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
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