2-(4-Chlorobenzenesulfinyl)-1,1-bis(4-chlorophenyl)ethan-1-ol CAS 337920-00-0
| CAS No. | 337920-00-0 |
| Molecular Formula | C20H15Cl3O2S |
| Molecular Weight | 425.76 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 2-(4-Chlorobenzenesulfinyl)-1,1-bis(4-chlorophenyl)ethan-1-ol (C20H15Cl3O2S) contains a steroid core, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 12.0, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 425.76 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
2-(4-Chlorobenzenesulfinyl)-1,1-bis(4-chlorophenyl)ethan-1-ol (CAS 337920-00-0), molecular formula C20H15Cl3O2S and molecular weight 425.76 g/mol, is a CATO reference standard with documented purity and traceability.
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 | C20H15Cl3O2S |
| Molecular Weight | 425.76 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Chlorobenzenesulfinyl Standards
- 2-(2-Chlorobenzenesulfinyl)-1,1-bis(4-chlorophenyl)ethan-1-ol (CAS 252026-78-1)
- 4-[(4-Chlorobenzenesulfinyl)methyl]-6-(2,4-dichlorophenoxy)-2-methylpyrimidine (CAS 338960-36-4)
- 4-[(4-Chlorobenzenesulfinyl)methyl]-6-phenoxy-2-phenylpyrimidine (CAS 306980-56-3)
- 2-(4-Chlorobenzenesulfinyl)-4,6-dimethyl-3-(4-methylbenzenesulfonyl)pyridine (CAS 477762-79-1)
- (E)-{[6-(4-chlorobenzenesulfinyl)pyridin-3-yl]methylidene}amino 4-methoxybenzoate (CAS 338967-11-6)
- 4-[(4-Chlorobenzenesulfinyl)methyl]-2-phenyl-6-(phenylsulfanyl)pyrimidine (CAS 306980-55-2)
- 4-{6-[(4-chlorobenzenesulfinyl)methyl]-2-phenylpyrimidin-4-yl}morpholine (CAS 306980-67-6)
- 4-[(4-Chlorobenzenesulfinyl)methyl]-6-(phenylsulfanyl)-2-(pyridin-2-yl)pyrimidine (CAS 303147-97-9)
Recommended Standards
- 2,5-Dichloro-N-[4-(3-chlorothiophen-2-yl)-1,3-thiazol-2-yl]benzene-1-sulfonamide (CAS 376348-99-1)
- Doravirine - API Standards (CAS 1338225-97-0)
- 4-(((4-Chlorophenyl)thio)methyl)-6-((3,4-dichlorobenzyl)oxy)-2-methylpyrimidine (CAS 338960-38-6)
- 4-((3-Chloro-5-(trifluoromethyl)pyridin-2-yl)methyl)-2-(4-fluorophenyl)-3,5-dioxo-2,3,4,5-tetrahydro-1,2,4-triazine-6-carbonitrile (CAS 672951-31-4)
- 5'-[(3-Amino-3-carboxypropyl)ethylsulfonio]-5'-deoxyadenosine Iodide (CAS 102029-72-1)
- 2-(3,4-Dichlorophenyl)pyrrole (CAS 122453-90-1)
- 6-(1h-1,2,4-triaZol-1-yl)pyridine-2-carbonitrile (CAS 1339342-11-8)
- propyl 5-hydroxy-3-methyl-1-phenyl-1H-pyrazole-4-carboxylate (CAS 1858241-48-1)
- 2-Phenyl-2-(1H-pyrrol-1-yl)-N-(2,2,2-trifluoroethyl)acetamide (CAS 1351582-39-2)
- tert-Butyl (4-fluoro-3-(hydroxymethyl)phenyl)carbamate (CAS 642085-13-0)
- 2-Chloro-4-(propan-2-yloxy)pyridin-3-amine (CAS 173435-39-7)
- 4-Methyl-1-(4-nitrophenyl)-1H-pyrazole (CAS 13808-73-6)
- 3-Methoxy-6-methylpyridazine (CAS 17644-83-6)
- Semaglutide impurity 38 (CAS CATO-C4X-222638)
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