1-(2,4-Dichlorophenyl)-2-(methylsulfonyl)ethan-1-one CAS 186342-91-6
| CAS No. | 186342-91-6 |
| Molecular Formula | C9H8Cl2O3S |
| Molecular Weight | 267.13 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1-(2,4-Dichlorophenyl)-2-(methylsulfonyl)ethan-1-one (CAS 186342-91-6), molecular formula C9H8Cl2O3S and molecular weight 267.13 g/mol, is a CATO reference standard with documented purity and traceability.
1-(2,4-Dichlorophenyl)-2-(methylsulfonyl)ethan-1-one (C9H8Cl2O3S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C9H8Cl2O3S |
| Molecular Weight | 267.13 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.) | 2010 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Dichlorophenyl Standards
- 3-((2,5-Dichlorophenyl)sulfinyl)propanoic acid (CAS 1249655-47-7)
- 1-(3,4-Dichlorophenyl)-2-(methylsulfonyl)ethan-1-one (CAS 344275-49-6)
- 1-(2,4-Dichlorophenyl)-1,2,3,4-tetrahydropyrrolo[1,2-a]pyrazine (CAS 1024471-90-6)
- (2,4-Dichlorophenyl)-N-(3-pyridinylmethyl)-methanamine (CAS 113248-60-5)
- 5-(3,5-Dichlorophenyl)-2-formylphenol (CAS 1262003-94-0)
- 1-(3,4-Dichlorophenyl)-2-(pyridin-3-yl)ethan-1-amine (CAS 1281508-09-5)
- [(2,4-dichlorophenyl)(pyridin-3-yl)methyl](methyl)amine (CAS 1306225-07-9)
- (2E)-1-(2,5-Dichlorophenyl)-3-(furan-2-yl)prop-2-en-1-one (CAS 1335135-74-4)
Recommended Standards
- Methyl 3-(allyloxy)-4,5-dichlorothiophene-2-carboxylate (CAS 1779124-20-7)
- (4-(2-(Dimethylamino)ethoxy)-5-ethyl-2-methoxyphenyl)boronic acid (CAS 642494-85-7)
- 3-(3-Bromophenyl)-1-methyl-1H-pyrazole-4,5-diamine (CAS 1710302-47-8)
- (4-(4-(Dimethylamino)styryl)phenyl)boronic acid (CAS 406719-93-5)
- Methyl 5-nitroisoquinoline-3-carboxylate (CAS 581812-72-8)
- 5,6,7,8-tetrahydrospiro[3,1-benzothiazine-4,1’-cyclohexan]-2-amine (CAS 5778-24-5)
- 1-(Octyloxy)-2-(trifluoromethyl)benzene (CAS 155056-55-6)
- 1-(3-Fluorophenyl)cyclopentanecarbonitrile (CAS 214262-90-5)
- 2-Chloro-6-fluoro-3-(methoxymethoxy)benzoic acid (CAS 2586126-90-9)
- 4-Methyl-2-(methylthio)-5-pyrimidinecarbonitrile (CAS 89079-62-9)
- Methyl 4-methoxybenzo[b]thiophene-2-carboxylate (CAS 146137-88-4)
- 3-Cyclopropoxy-6-sulfamoylpicolinamide (CAS 1243326-87-5)
- 2-((Furan-2-ylmethyl)amino)-2-thioxo-N-(p-tolyl)acetamide (CAS 329078-75-3)
- semaglutide (CAS 782487-28-9)
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