2-(4-Chlorobenzenesulfonyl)-1,1-diphenylethan-1-ol CAS 251307-28-5
| CAS No. | 251307-28-5 |
| Molecular Formula | C20H17ClO3S |
| Molecular Weight | 372.87 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 2-(4-Chlorobenzenesulfonyl)-1,1-diphenylethan-1-ol meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
2-(4-Chlorobenzenesulfonyl)-1,1-diphenylethan-1-ol (CAS 251307-28-5), molecular formula C20H17ClO3S and molecular weight 372.87 g/mol, is a CATO reference standard with documented purity and traceability.
2-(4-Chlorobenzenesulfonyl)-1,1-diphenylethan-1-ol (C20H17ClO3S) contains a steroid core, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
Physical & Chemical Properties
| Molecular Formula | C20H17ClO3S |
| Molecular Weight | 372.87 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| 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 Chlorobenzenesulfonyl Standards
- 2-(3-Chlorobenzenesulfonyl)-1,1-diphenylethan-1-ol (CAS 252026-35-0)
- 1-(4-Chlorobenzenesulfonyl)-4-(6-chloropyridin-2-yl)piperazine (CAS 339107-37-8)
- 4-[5-(4-Chlorobenzenesulfonyl)-1,2,3-thiadiazole-4-carbonyl]morpholine (CAS 306977-07-1)
- 1-[5-(4-Chlorobenzenesulfonyl)-1,2,3-thiadiazole-4-carbonyl]piperidine (CAS 306977-06-0)
- Methyl 3-[(4-chlorobenzenesulfonyl)oxy]-4-nitrobenzoate (CAS 297149-80-5)
- 3-[(4-Chlorobenzenesulfonyl)methyl]-4-nitrobenzohydrazide (CAS 339016-39-6)
- 3-(3-Chlorobenzenesulfonyl)-6,7-difluoro-1-methyl-1,4-dihydroquinolin-4-one (CAS 1326842-71-0)
- 5-[(3-Chlorobenzenesulfonyl)methyl]-3-(4-chlorophenyl)-1,2-oxazole (CAS 343372-66-7)
Recommended Standards
- 2-(4-Chlorobenzyl)-N-(2-methoxybenzyl)thiazole-4-carboxamide (CAS 478030-54-5)
- 1-[2-(4-Chlorophenyl)-4-methyl-1,3-thiazol-5-yl]ethyl N-phenylcarbamate (CAS 439111-31-6)
- 2-(4-Chlorobenzyl)-N-(4-methoxybenzyl)thiazole-4-carboxamide (CAS 478030-53-4)
- 1-(5-Chloro-2-methylphenyl)-5-methyl-N-(2-(methylthio)phenyl)-1H-1,2,3-triazole-4-carboxamide (CAS 904817-46-5)
- 2-Methylazetidine-3-carboxylic acid (CAS 1638771-37-5)
- 3,5-Dibromo-4-methylthiophene-2-carboxylic acid (CAS 856354-09-1)
- 4-(6-Methylpyridin-3-yl)benzoic acid (CAS 199678-10-9)
- (R)-3-Amino-1-methylpyrrolidin-2-one (CAS 782446-70-2)
- Sodium 3-methoxy-3-oxopropane-1-sulfinate (CAS 90030-48-1)
- (R)-1-(4-fluoro-3-methylphenyl)-2-methylpropan-1-amine (CAS 1213687-45-6)
- n-[3-(aminomethyl)phenyl]cyclohexanecarboxamide hydrochloride (CAS 1221722-14-0)
- (S)-2-(2-oxopyrrolidin-1-yl)propanoic acid (CAS 96219-55-5)
- tert-Butyl 4-[3-(methanesulfonyloxy)propyl]piperazine-1-carboxylate (CAS 295330-86-8)
- Cholecystokinin Octapeptide free acid (desulfated) (H-2075.0001) (CAS 103974-46-5)
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