3,4-Dimethyl-benzenesulfonamide CAS 6326-18-7
| CAS No. | 6326-18-7 |
| Molecular Formula | C8H11NO2S |
| Molecular Weight | 185.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
3,4-Dimethyl-benzenesulfonamide (CAS 6326-18-7), molecular formula C8H11NO2S and molecular weight 185.24 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, 3,4-Dimethyl-benzenesulfonamide is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 185.24 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
As a certified reference material (CRM), 3,4-Dimethyl-benzenesulfonamide 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.
Physical & Chemical Properties
| Molecular Formula | C8H11NO2S |
| Molecular Weight | 185.24 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 |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
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Recommended Standards
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- 2-(Allylthio)-4-(thiophen-2-yl)pyrimidine (CAS 685107-86-2)
- Methyl 2-((2-cyano-4-(trifluoromethyl)phenyl)thio)benzoate (CAS 477866-75-4)
- 6-Bromo-7-chloro-2,3,4-trimethyl-1,8-naphthyridine (CAS 1554186-97-8)
- 5-Amino-4-fluoro-2-nitrobenzoic acid (CAS 53994-61-9)
- 1-Ethyl-2-mercapto-5,7-dimethylpyrido[2,3-d]-pyrimidin-4(1H)-one (CAS 937599-68-3)
- 2-(3-(Tosyloxy)pyrrolidin-1-yl)acetic acid (CAS 1353951-65-1)
- Vasonatrin Peptide (VNP) trifluoroacetate salt (CAS 141676-35-9)
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