4-(Ethylsulfonyl)-2-methylenecyclopentanecarboxylic acid CAS 1707567-98-3
| CAS No. | 1707567-98-3 |
| Molecular Formula | C9H14O4S |
| Molecular Weight | 218.27 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.
CATO supplies 4-(Ethylsulfonyl)-2-methylenecyclopentanecarboxylic acid (CAS 1707567-98-3), a certified reference material (molecular formula C9H14O4S, MW 218.27 g/mol) for analytical method development and quality control.
The molecular framework of 4-(Ethylsulfonyl)-2-methylenecyclopentanecarboxylic acid (C9H14O4S) is characterized by a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C9H14O4S |
| Molecular Weight | 218.27 g/mol |
| Purity | 97%+ |
| 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1994 |
| Sulfur Atoms | 1 |
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Recommended Standards
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- 4-(4-chlorophenyl)-4-ethyl-2,6-dioxopiperidine-3,5-dicarbonitrile (CAS 405889-73-8)
- (S)-2-(2-(Aminomethyl)pyrrolidin-1-yl)ethan-1-ol (CAS 484001-52-7)
- 1H-Imidazo[4,5-h]quinolin-5-amine (CAS 35313-62-3)
- Dicyclohexyl(2′,2′′,4′,6′-tetramethyl[1,1′:3′,1′′-terphenyl]-2-yl)phosphine (CAS 1668597-95-2)
- Baxdrostat Impurity 26 (CAS 1428652-35-0)
- 2-Fluoro-6-hydroxybenzoic Acid (CAS 67531-86-6)
- 1,2-Dibromo-5-methoxy-3-(trifluoromethyl)benzene (CAS 2383345-61-5)
- tert-Butyl ((1S,2S)-2-((2,6-dimethoxyphenyl)selanyl)-2,3-dihydro-1H-inden-1-yl)carbamate (CAS 2088566-91-8)
- N-(4-Methoxybenzylidene)-4-butylaniline (CAS 97402-82-9)
- Semaglutide Impurity 9 (CAS CATO-C4X-22269)
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