Bis(3-carboxyphenyl)(3-trifluoromethylphenyl)phosphine CAS 1808959-39-8
| CAS No. | 1808959-39-8 |
| Molecular Formula | C21H14F3O4P |
| Molecular Weight | 418.30 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Bis(3-carboxyphenyl)(3-trifluoromethylphenyl)phosphine is closely related to a flavonoid core, a phosphate ester group, a hydroxyl group, an ether linkage, fluorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies Bis(3-carboxyphenyl)(3-trifluoromethylphenyl)phosphine (CAS 1808959-39-8), a certified reference material (molecular formula C21H14F3O4P, MW 418.30 g/mol) for analytical method development and quality control.
Bis(3-carboxyphenyl)(3-trifluoromethylphenyl)phosphine (C21H14F3O4P) contains a flavonoid core, a phosphate ester group, a hydroxyl group, an ether linkage, fluorine 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. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C21H14F3O4P |
| Molecular Weight | 418.30 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, 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) | 13.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
| Halogen Content | F-containing |
Related Bis Standards
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Recommended Standards
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- 2-(2-{2-[(3,4-dichlorophenyl)amino]-1,3-thiazol-4-yl}ethyl)-2,3-dihydro-1H-isoindole-1,3-dione (CAS 861211-34-9)
- tert-Butyl (S)-(5-methyl-4-oxo-7-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2,3,4,5-tetrahydrobenzo[b][1,4]oxazepin-3-yl)carbamate (CAS 2820450-40-4)
- 3-(3-fluoro-4-(((tetrahydro-2H-pyran-2-yl)oxy)methyl)phenyl)oxetan-3-ol (CAS CATO-C3D-262186)
- 1-(2,2,2-Trifluoroethyl)-1H-pyrazole-3-carboxylic acid (CAS 942853-22-7)
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- N-[(3-Bromothiophen-2-yl)methyl]-1-ethyl-1H-pyrazol-4-amine (CAS 1550158-48-9)
- SANT-1 (CAS 304909-07-7)
- Methyl 3-(2-(2-morpholino-2-oxoacetyl)-1H-pyrrol-1-yl)thiophene-2-carboxylate (CAS 477857-72-0)
- 1-(2,3-Difluoro-5-methoxy-4-methylphenyl)ethan-1-one (CAS 1706436-19-2)
- 1-(3-Chloropropyl)-8-methoxy-3,6-dimethylquinolin-2(1H)-one (CAS 2113977-72-1)
- 2-(4-Fluorobenzoyl)-propanedinitrile (CAS 956025-35-7)
- Semaglutide Impurity 162 (x TFA Salt) (CAS CATO-C4X-2226162)
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