N-(4-bromo-2-ethylphenyl)methanesulfonamide CAS 749928-94-7
| CAS No. | 749928-94-7 |
| Molecular Formula | C9H12BrNO2S |
| Molecular Weight | 278.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), N-(4-bromo-2-ethylphenyl)methanesulfonamide meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
CATO supplies N-(4-bromo-2-ethylphenyl)methanesulfonamide (CAS 749928-94-7), a certified reference material (molecular formula C9H12BrNO2S, MW 278.17 g/mol) for analytical method development and quality control.
N-(4-bromo-2-ethylphenyl)methanesulfonamide (C9H12BrNO2S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, bromine substitution. 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.
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 | C9H12BrNO2S |
| Molecular Weight | 278.17 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.) | 1986 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related N Standards
- 3-Bromo-N,N,5-trimethylbenzenesulfonamide (CAS 1020252-92-9)
- 5-Bromo-N-(3-methoxypropyl)thiophene-2-carboxamide (CAS 1089601-57-9)
- 2-Bromo-N,N,4-trimethylbenzenesulfonamide (CAS 1090574-82-5)
- 4-Bromo-n-ethyl-3-methylbenzene-1-sulfonamide (CAS 1094563-49-1)
- 3-Bromo-N-(1-methoxypropan-2-yl)thiophene-2-carboxamide (CAS 1197665-44-3)
- 5-Bromo-N,2,4-trimethylbenzene-1-sulfonamide (CAS 1206093-35-7)
- 5-bromo-2-(2-methylpropane-2-sulfonyl)pyridine (CAS 123792-44-9)
- 3-Bromo-4-(propylsulfonyl)aniline (CAS 1249101-27-6)
Recommended Standards
- N-(3-Bromopropyl)benzenesulfonamide (CAS 3245-94-1)
- N-(4-Bromo-2-thienyl)-carbamic Acid 1,1-Dimethylethyl Ester (CAS 868387-45-5)
- N-(3-bromobenzyl)ethanesulfonamide (CAS 895513-29-8)
- N,N-Dimethyl-3-bromo-4-methylbenzenesulfonamide (CAS 850429-72-0)
- 4-Amino-2-(pyrrolidin-1-yl)benzamide (CAS 878620-22-5)
- 2-(3-Hydroxytetrahydro-2h-thiopyran-3-yl)acetic acid (CAS 1343958-49-5)
- Benzo[c][1,2,5]thiadiazole-5-carboxylic Acid (CAS 16405-98-4)
- N-(3-phenylprop-2-yn-1-yl)butan-1-amine hydrochloride (CAS 1048947-48-3)
- 2-Amino-4-isopropylthiophene-3-carbonitrile (CAS 10413-35-1)
- 781-73-7 265603H216 2-Acetylfluorene Ethanone, 1-(9H-fluoren-2-yl)- (9CI) Fluoren-2-yl methyl ketone Ketone, fluoren-2-yl methyl 4-07-00-01677 (Beilstein Handbook Reference) 2-Acetofluorene BRN 1871711 EINECS 212-310-5 Ethanone, 1-(9H-fluoren-2-yl) 2-Fluorenyl methyl ketone NSC 12351 UNII-265603H216 (CAS 781-73-7)
- N-(4-chlorophenyl)-5-(pyrrolidin-2-yl)-1,3,4-thiadiazole-2-carboxamide (CAS 1217862-92-4)
- 3-(3,5-Difluorophenyl)tetrahydrofuran-3-ol (CAS 1343049-50-2)
- (S)-1-[4-(4-Methylthiazol-5-yl)phenyl]ethanamine Hydrochloride (CAS 1948273-01-5)
- Erythropoietin Mimetic Peptide Sequence 20 (CAS 203397-62-0)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com