2-Oxo-2-phenyl-ethanesulfonyl chloride CAS 23289-99-8
| CAS No. | 23289-99-8 |
| Molecular Formula | C8H7ClO3S |
| Molecular Weight | 218.66 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C8H7ClO3S, 2-Oxo-2-phenyl-ethanesulfonyl chloride contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 218.66 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).
2-Oxo-2-phenyl-ethanesulfonyl chloride (CAS 23289-99-8), molecular formula C8H7ClO3S and molecular weight 218.66 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-Oxo-2-phenyl-ethanesulfonyl chloride 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 | C8H7ClO3S |
| Molecular Weight | 218.66 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.) | 1963 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Recommended Standards
- 2-[(2-Chloroacetyl)amino]-3-thiophenecarboxamide (CAS 610274-69-6)
- 3-(methylsulfonyl)benzoyl chloride (CAS 54857-54-4)
- 2,3-Dihydrobenzofuran-7-sulfonyl chloride (CAS 953408-82-7)
- 3-Acetylbenzenesulfonyl chloride (CAS 73035-16-2)
- Benzyl (2-iodophenyl)carbamate (CAS 212063-19-9)
- 1171543-35-3 Methyl 4-[3-(tert-butylamino)imidazo[1,2-a]pyrimidin-2-yl]benzoate MFCD14281634 (CAS 1171543-35-3)
- 1-(Bromomethyl)-3-iodo-5-(trifluoromethyl)benzene (CAS 1261795-42-9)
- Mosapride Impurity 49 (CAS CATO-C4X-104449)
- 3-(Tetrahydro-2H-pyran-4-yl)-5,6,7,8-tetrahydro-[1,2,4]triazolo[4,3-a]pyrazine (CAS 1343600-28-1)
- 2-(6-METHOXYNAPHTHALEN-2-YL)PIPERAZINE (CAS 914348-90-6)
- 7-Hydroxy Methotrexate Ammonium Salt (CAS CATO-C4X-115437)
- 2,5-Dimethyl-6,7-dihydro-5H-cyclopenta[b]pyrazine (CAS 38917-61-2)
- 2-Octadecyleicosanoic acid (CAS 108293-08-9)
- Semaglutide impurity 211 (CAS CATO-C4X-2226211)
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