2-Chloro-1-[4-(methylsulfonyl)phenyl]ethanone CAS 99586-87-5
| CAS No. | 99586-87-5 |
| Molecular Formula | C9H9ClO3S |
| Molecular Weight | 232.68 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-Chloro-1-[4-(methylsulfonyl)phenyl]ethanone (CAS 99586-87-5) is a high-purity analytical reference standard with the molecular formula C9H9ClO3S and a molecular weight of 232.68 g/mol.
Based on its molecular formula C9H9ClO3S, 2-Chloro-1-[4-(methylsulfonyl)phenyl]ethanone 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 232.68 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.
CATO manufactures 2-Chloro-1-[4-(methylsulfonyl)phenyl]ethanone 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 | C9H9ClO3S |
| Molecular Weight | 232.68 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.) | 1985 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Chloro Standards
- 2-Chloro-4-(cyclopropylsulfonyl)phenol (CAS 1147558-11-9)
- 3-chloro-2-(ethanesulfonyl)benzaldehyde (CAS 1379324-69-2)
- 5-Chloro-2-(ethanesulfonyl)benzaldehyde (CAS 1379327-84-0)
- 1-(4-Chloro-3-fluorophenyl)-2-(propan-2-yloxy)ethan-1-ol (CAS 1461709-04-5)
- 2-chloro-6-(ethanesulfinyl)benzoic acid (CAS 1803604-34-3)
- 1-Chloro-2-fluoro-4-methoxy-3-(2-methylpropoxy)benzene (CAS 1881288-48-7)
- 2’-Chloro-2-(methylsulfonyl)acetophenone (CAS 30866-60-5)
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Recommended Standards
- 2-Methyl-2,3-dihydro-1-benzofuran-5-sulfonyl chloride (CAS 369638-66-4)
- 2-(4-Methanesulfonylphenyl)acetyl chloride (CAS 74426-50-9)
- 3-(2-Oxopropyl)benzene-1-sulfonyl chloride (CAS 89313-30-4)
- 1-(4-Chlorophenyl)-2-(methylsulfonyl)ethan-1-one (CAS 24437-48-7)
- 4-(2-Ethoxyphenyl)-2-methyl-5-oxo-5H-indeno[1,2-b]pyridine-3-carbonitrile (CAS 691868-78-7)
- (2Z)-2-[(Z)-3-Bromobenzoyl]-3-[(2,4-difluorophenyl)amino]-3-hydroxyprop-2-enenitrile (CAS 866151-83-9)
- cis-3-Phenylpyrrolidine-2-carboxylic acid (CAS 51212-39-6)
- 5-AMINO-4-BROMO-2-CHLOROPHENOL (CAS 1232505-77-9)
- 4-(Fluoromethyl)-6-hydroxy-3-(trifluoromethoxy)picolinaldehyde (CAS 1804795-25-2)
- Methyl 2-bromo-6-cyano-4-fluorobenzoate (CAS 1805523-59-4)
- 6-Methoxy-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indol-1-one (CAS 17952-87-3)
- 2-(4-(Methylthio)phenyl)-N-(5-(thiophen-2-yl)-1,3,4-oxadiazol-2-yl)acetamide (CAS 941971-32-0)
- (S)-3-(Phenylamino)butanoic acid (CAS 142925-36-8)
- Casein kinase II peptide Substrate (CAS 154444-98-1)
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