1-Ethyl-4-(methylsulfonyl)benzene CAS 31218-79-8
| CAS No. | 31218-79-8 |
| Molecular Formula | C9H12O2S |
| Molecular Weight | 184.26 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1-Ethyl-4-(methylsulfonyl)benzene (C9H12O2S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
1-Ethyl-4-(methylsulfonyl)benzene (CAS 31218-79-8), molecular formula C9H12O2S and molecular weight 184.26 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.
As a certified reference material (CRM), 1-Ethyl-4-(methylsulfonyl)benzene 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 | C9H12O2S |
| Molecular Weight | 184.26 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1965 |
| Sulfur Atoms | 1 |
Related Ethyl Standards
- (2-(Methylsulfonyl)ethyl)benzene (CAS 6079-56-7)
- 1-Methyl-2-((methylsulfonyl)methyl)benzene (CAS 261924-13-4)
- 1-Methyl-3-((methylsulfonyl)methyl)benzene (CAS 261924-10-1)
- 3-((Methylsulfonyl)thio)propanoic acid (CAS 92953-12-3)
- 1-(Methylsulfonyl)-2-phenyldiazene (CAS 23265-32-9)
- 2-(Methylsulfonyl)benzaldehyde (CAS 5395-89-1)
- 3-(Methylsulfonyl)benzaldehyde (CAS 43114-43-8)
- 4-(Methylsulfonyl)benzaldehyde (CAS 5398-77-6)
Recommended Standards
- 1-Cyclohexyl-1h-1,2,3,4-tetrazole-5-thiol (CAS 49847-44-1)
- 1-Isopropyl-3-(thiophen-2-yl)urea (CAS 903151-28-0)
- 1,4-Dimethyl-2-(methylsulfonyl)benzene (CAS 6462-29-9)
- 1-methoxy-4-(2-sulfanylethoxy)benzene (CAS 649739-49-1)
- 1-Caffeoylquinic acid (CAS 1241-87-8)
- [DVal22] Big Endothelin-1 (16-38), human (CAS 158884-64-1)
- 1-Bromo-2,4-difluoro-5-(trifluoromethoxy)benzene (CAS 1805938-54-8)
- (R)-2-((1-Benzylpyrrolidin-3-yl)amino)acetic acid (CAS 1353993-82-4)
- rac-1-[(1R,2S)-2-ethoxy-4-oxocyclobutyl]pyrrolidine-2,5-dione (CAS 1864003-42-8)
- (S)-1-(5-Ethyl-1,3,4-oxadiazol-2-yl)-3-(methylthio)propan-1-amine (CAS 1351397-90-4)
- 1-(3-Chloro-4-fluorophenyl)-3-(3-fluorophenyl)propan-1-one (CAS 898767-29-8)
- 5-(Difluoromethyl)-2-oxo-1,2-dihydropyridine-3-carboxamide (CAS 1806779-90-7)
- (2S,4S)-4-Fluoropyrrolidine-2-carbonitrile trifluoroacetic acid (CAS 2306254-49-7)
- Peptide 431 (CAS CATO-CPTD788431)
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