2-Ethoxyethyl 4-methylbenzenesulfonate CAS 17178-11-9
| CAS No. | 17178-11-9 |
| Molecular Formula | C11H16O4S |
| Molecular Weight | 244.31 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 2-Ethoxyethyl 4-methylbenzenesulfonate (C11H16O4S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 244.31 g/mol, it falls into the medium-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
2-Ethoxyethyl 4-methylbenzenesulfonate (CAS 17178-11-9), molecular formula C11H16O4S and molecular weight 244.31 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.
CATO manufactures 2-Ethoxyethyl 4-methylbenzenesulfonate under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C11H16O4S |
| Molecular Weight | 244.31 g/mol |
| Purity | >95% |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1961 |
| Sulfur Atoms | 1 |
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Recommended Standards
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- Tert-butyl 3-fluoro-1,7-diazaspiro[4.4]Nonane-7-carboxylate (CAS 1781049-79-3)
- Calcium iodide (CAS 10102-68-8)
- N-(4-Amino-2-methylphenyl)-2-(4-ethylphenoxy)-propanamide (CAS 954576-09-1)
- (R)-3-(p-tolyloxy)butanoic acid (CAS 1136059-91-0)
- Phenampromide-d5 Hydrochloride (CAS 1346603-67-5)
- (9H-Fluoren-9-yl)methyl (1-hydroxy-4-methylpentan-2-yl)carbamate (CAS 947137-98-6)
- (S)-(+)-2-Amino-3-cyclohexyl-1-propanol HCl (CAS 117160-99-3)
- 3,4-Dimethylthiophene-2,5-dicarboxylic acid (CAS 19799-13-4)
- tert-Butyl 3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-9-azabicyclo[3.3.1]non-2-ene-9-carboxylate (CAS 1313034-25-1)
- Methyl 3-bromo-5-ethoxy-6-oxo-1,6-dihydropyridine-2-carboxylate (CAS 1196959-77-9)
- Semaglutide Impurity 121 X Sodium Salt (CAS CATO-C4X-2226121)
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