1-(2-Chloro-3-methyl-4-(methylsulfonyl)phenyl)ethanone CAS 181997-72-8
| CAS No. | 181997-72-8 |
| Molecular Formula | C10H11ClO3S |
| Molecular Weight | 246.71 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1-(2-Chloro-3-methyl-4-(methylsulfonyl)phenyl)ethanone (CAS 181997-72-8), molecular formula C10H11ClO3S and molecular weight 246.71 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C10H11ClO3S, 1-(2-Chloro-3-methyl-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 246.71 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 1-(2-Chloro-3-methyl-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 | C10H11ClO3S |
| Molecular Weight | 246.71 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.) | 2008 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Chloro Standards
- 6-chloro-N-(cyclopropylmethyl)pyridine-3-sulfonamide (CAS 1016689-89-6)
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- 2-Chloro-4-(pyrrolidine-1-sulfonyl)pyridine (CAS 1179655-82-3)
- methyl 4-chloro-2-(pyrrolidin-1-yl)-1,3-thiaZole-5-carboxylate (CAS 1183743-41-0)
- (Z)-1-Chloro-2-(2-(4-fluorophenyl)prop-1-en-1-yl)benzene (CAS 1187311-54-1)
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Recommended Standards
- 5-Amino-1-(3-chloro-4-fluorophenyl)-1<I>H</I>-pyrazole-4-carbonitrile (CAS 175135-53-2)
- (Z)-[amino(thiophen-2-yl)methylidene]amino 4-chlorobutanoate (CAS 19580-41-7)
- 2-chloro-2-(ethanesulfonyl)-1-phenylethan-1-one (CAS 1708371-53-2)
- (E)-Ethyl 2-(4-chlorophenyl)ethenesulfonate (CAS 73300-79-5)
- 4-(Benzyloxy)-2-bromobenzonitrile (CAS 1044067-64-2)
- 1-(4-Fluorophenyl)piperidine-2-carboxylic acid (CAS 1504689-74-0)
- 1-Bromo-3-(difluoromethoxy)benzene (CAS 262587-05-3)
- 1-(2-Chlorobenzyl)-1h-indole (CAS 677013-22-8)
- 2-(Chloromethyl)-3-fluoropyridine (CAS 149489-32-7)
- 4-[3-(Trifluoromethyl)-3H-diazirin-3-yl]benzenemethanamine (CAS 400781-05-7)
- 2-(5-Isopropyl-4,4-dimethyl-1,3,2-dioxaborolan-2-yl)-6-(trifluoromethyl)benzonitrile (CAS 883899-03-4)
- 4-(2,4-Dichlorophenyl)-5-(ethylsulfonyl)-1,2,3-thiadiazole (CAS 1708199-39-6)
- 1-Bromo-3-(difluoromethyl)-2-fluorobenzene (CAS 1204333-52-7)
- Semaglutide Impurity 75 (CAS CATO-C4X-2226175)
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