3-(Diphenylphosphino)benzenesulfonic acid sodium salt CAS 63995-75-5
| CAS No. | 63995-75-5 |
| Molecular Formula | C18H14O3PS |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 364.33 g/mol gives 3-(Diphenylphosphino)benzenesulfonic acid sodium salt distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 3-(Diphenylphosphino)benzenesulfonic acid sodium salt (CAS 63995-75-5), a certified reference material (molecular formula C18H14O3PSNa, MW 364.33 g/mol) for analytical method development and quality control.
Based on its molecular formula C18H14O3PSNa, 3-(Diphenylphosphino)benzenesulfonic acid sodium salt contains a steroid core, a sulfone group, a phosphonate group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 364.33 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.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
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 | C18H14O3PS Na |
| Molecular Weight | 364.33 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 |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1975 |
| Sulfur Atoms | 1 |
Related Diphenylphosphino Standards
- N-(Diphenylphosphino)-N-[1-(1-methylcyclopropyl)ethyl]-P,P-diphenylphosphinous amide (CAS 1010117-74-4)
- 2-(2-(diphenylphosphino)ethyl)pyridine (CAS 10150-27-3)
- 12,12'-Bis(diphenylphosphino)-9,9',10,10'-tetra hydro-11,11'-bi-9,10-ethenoanthracene (CAS 1020670-88-5)
- (1R)-1-(2-(Diphenylphosphino)cyclohexyl)-N,N-dimethylethanamine (CAS 1027065-42-4)
- 2-(2,2-Bis(diphenylphosphino)ethyl)-1,1-dimethylhydrazine (CAS 105632-78-8)
- 2-(2-(Diphenylphosphino)phenyl)-1-methyl-1H-indole (CAS 1067883-56-0)
- N-(Diphenylphosphino)-N,N′-bis(1-methylethyl)-P-phenylphosphonous diamide (CAS 1100362-71-7)
- (S)-2-(Diphenylphosphino)-1-phenylethanamine (CAS 1103533-85-2)
Recommended Standards
- 2-((Fluoro(phenyl)methyl)sulfonyl)pyridine (CAS 1689584-09-5)
- 5-Amino-3-cyclopentylisoxazole (CAS 1012879-78-5)
- Methyl 6-(difluoromethyl)nicotinate (CAS 1355729-43-9)
- (4S,4'S)-2,2'-(1,3-Bis(3,5-di-tert-butylphenyl)propane-2,2-diyl)bis(4-cyclohexyl-4,5-dihydrooxazole) (CAS 2923490-41-7)
- 4-Methyl-5,6,7,8-tetrahydropyrido[4,3-d]pyrimidine (CAS 944901-77-3)
- 2-(1H-Imidazol-1-yl)pyrimidine-4-carbonitrile (CAS 1330755-54-8)
- 5-Cyclopropoxy-N2,N2,N4-trimethylpyridine-2,4-dicarboxamide (CAS 1243348-01-7)
- n-(4-Bromophenyl)-2-(pyrrolidin-1-yl)acetamide (CAS 89473-71-2)
- 3-Methyl-N-(1,2,3,4-tetrahydroquinolin-6-yl)thiophene-2-carboxamide (CAS 1375474-52-4)
- D-Thr7-Tirzepatide (CAS CATO-CPTD788924)
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