Methyl 5-(chlorosulfonyl)-2-ethylbenzoate CAS 866358-18-1
| CAS No. | 866358-18-1 |
| Molecular Formula | C10H11ClO4S |
| Molecular Weight | 262.71 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Methyl 5-(chlorosulfonyl)-2-ethylbenzoate (CAS 866358-18-1), a certified reference material (molecular formula C10H11ClO4S, MW 262.71 g/mol) for analytical method development and quality control.
Structurally, Methyl 5-(chlorosulfonyl)-2-ethylbenzoate (C10H11ClO4S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 262.71 g/mol, it falls into the medium-molecular-weight range. 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).
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.
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 | C10H11ClO4S |
| Molecular Weight | 262.71 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Methyl Standards
- Methyl 3-(chlorosulfonyl)-4,5-dimethylbenzoate (CAS 1156634-80-8)
- 1-(3'-Chlorosulfonyl-4'-methoxyphenyl)-1-propanone-methyl-d3 1189984-41-5 (CAS 1189984-41-5)
- Ethyl 2-(3-(chlorosulfonyl)phenyl)acetate (CAS 1190373-83-1)
- Methyl 2-(chlorosulfonyl)-5-ethylbenzoate (CAS 1247825-38-2)
- 4-(Chlorosulfonyl)phenyl isobutyrate (CAS 1315367-19-1)
- Ethyl 2-(chlorosulfonyl)-6-methylbenzoate (CAS 133742-97-9)
- Ethyl 2-[2-(chlorosulfonyl)phenyl]acetate (CAS 1342174-62-2)
- Benzyl 3-(chlorosulfonyl)propanoate (CAS 1394041-79-2)
Recommended Standards
- Methyl 3-(4-chlorosulfonyl)phenylpropionate (CAS 374537-95-8)
- N-(2-Chloro-4-(N-methylsulfamoyl)phenyl)acetamide (CAS 68252-73-3)
- Methyl 3-(3-(chlorosulfonyl)phenyl)propanoate (CAS 866787-22-6)
- n-(4-Chloro-3-cyanophenyl)thiophene-2-carboxamide (CAS 930490-07-6)
- Methyl 4-bromo-2-(trifluoromethyl)benzoate (CAS 957207-58-8)
- 1-(2,6-Dichlorobenzyl)indoline-2,3-dione (CAS 303997-00-4)
- tert-Butyl 4-((2-((2-chlorobenzyl)(ethyl)amino)-2-oxoethyl)(methyl)amino)piperidine-1-carboxylate (CAS 1353965-73-7)
- Copper bromo(triphenylphosphine)- (CAS 22176-37-0)
- 1-(3,5-Dichlorophenyl)-3-Methylurea (CAS 38655-13-9)
- (2-(4-(Tert-butyl)phenyl)cyclopropyl)methanamine (CAS 1225525-33-6)
- 2-(1H-1,2,3-Benzotriazol-1-yl)-N-(4-butylphenyl)acetamide (CAS 298218-10-7)
- trans-3-(Aminomethyl)cyclobutane-1-carboxylic acid (CAS 1780823-69-9)
- 5-Bromo-2-hydroxy-N-(pyridin-2-ylmethyl)benzamide (CAS 931071-28-2)
- Calcineurin Autoinhibitory Peptide (CAS 148067-21-4)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com