2-(Dicyclohexylphosphanyl)benzenesulfonic acid CAS 926936-73-4
| CAS No. | 926936-73-4 |
| Molecular Formula | C18H27O3PS |
| Molecular Weight | 354.44 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
2-(Dicyclohexylphosphanyl)benzenesulfonic acid (CAS 926936-73-4), molecular formula C18H27O3PS and molecular weight 354.44 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 2-(Dicyclohexylphosphanyl)benzenesulfonic acid (C18H27O3PS) is characterized by a steroid core, a sulfone group, a phosphonate group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C18H27O3PS |
| Molecular Weight | 354.44 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 5.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Sulfur Atoms | 1 |
Related Dicyclohexylphosphanyl Standards
- 2'-(Dicyclohexylphosphanyl)-[1,1'-biphenyl]-2-ol (CAS 304435-67-4)
- 1-(Dicyclohexylphosphanyl)-2-(o-tolyl)-1H-indole (CAS 947402-59-7)
- 2-(2-(Dicyclohexylphosphanyl)phenyl)-1-methyl-1H-benzo[d]imidazole (CAS 1357398-60-7)
- 2'-(Dicyclohexylphosphanyl)-2,6-dimethoxy-[1,1'-biphenyl]-3-sulfonic acid (CAS 870447-91-9)
- (1R)-2'-(Dicyclohexylphosphanyl)-N,N-dimethyl-[1,1'-binaphthalen]-2-amine (CAS 255882-15-6)
- 9-(Dicyclohexylphosphanyl)-9-(3-(4-sulfophenyl)propyl)-9H-fluorene-2-sulfonic acid (CAS 1020540-69-5)
Recommended Standards
- 2-(4-(Benzyloxy)butyl)-4,6-dimethoxy-3-methylbenzofuran (CAS 831171-02-9)
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- 1,2-Diphenylcyclobuta[b]anthracene (CAS 49626-41-7)
- 2,2'-(((3,3',5,5'-Tetramethyl-[1,1'-biphenyl]-4,4'-diyl)bis(oxy))bis(methylene))bis(oxirane) (CAS 85954-11-6)
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- 2-(tert-Butoxycarbonyl)isoindoline-5,6-dicarboxylic acid (CAS 1824411-98-4)
- N-(2-Amino-4-fluorophenyl)methanesulfonamide (CAS 156522-13-3)
- (3-(Phenoxymethyl)-1,2,4-oxadiazol-5-yl)methanamine hydrochloride (CAS 1235666-65-5)
- 3-[3-(4-Bromophenoxy)phenyl]-3-oxopropanenitrile (CAS 127389-37-1)
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