| CAS No. | 103262-81-3 |
| Molecular Formula | C9H10O2S |
| Molecular Weight | 182.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Benzene, 1-ethenyl-3-(methylsulfonyl)- (CAS 103262-81-3), molecular formula C9H10O2S and molecular weight 182.24 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C9H10O2S, Benzene, 1-ethenyl-3-(methylsulfonyl)- contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 182.24 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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), Benzene, 1-ethenyl-3-(methylsulfonyl)- 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.
| Molecular Formula | C9H10O2S |
| Molecular Weight | 182.24 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
| Sulfur Atoms | 1 |