4-Bromo-N-tert-butyl-N-[(4-methoxyphenyl)methyl]benzene-1-sulfonamide CAS 1881330-94-4
| CAS No. | 1881330-94-4 |
| Molecular Formula | C18H22BrNO3S |
| Molecular Weight | 412.34 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
4-Bromo-N-tert-butyl-N-[(4-methoxyphenyl)methyl]benzene-1-sulfonamide (CAS 1881330-94-4), molecular formula C18H22BrNO3S and molecular weight 412.34 g/mol, is a CATO reference standard with documented purity and traceability.
4-Bromo-N-tert-butyl-N-[(4-methoxyphenyl)methyl]benzene-1-sulfonamide (C18H22BrNO3S) contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, bromine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility, 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.
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.
Physical & Chemical Properties
| Molecular Formula | C18H22BrNO3S |
| Molecular Weight | 412.34 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
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- 4-Cyclopropoxy-6-nitronicotinaldehyde (CAS 1243370-10-6)
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