(4-fluorophenyl)bis(4-methoxyphenyl)phosphine oxide CAS 302595-04-6
| CAS No. | 302595-04-6 |
| Molecular Formula | C20H18FO3P |
| Molecular Weight | 356.33 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including (4-fluorophenyl)bis(4-methoxyphenyl)phosphine oxide.
CATO supplies (4-fluorophenyl)bis(4-methoxyphenyl)phosphine oxide (CAS 302595-04-6), a certified reference material (molecular formula C20H18FO3P, MW 356.33 g/mol) for analytical method development and quality control.
(4-fluorophenyl)bis(4-methoxyphenyl)phosphine oxide (C20H18FO3P) contains a steroid core, a phosphonate 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. 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.
As a certified reference material (CRM), (4-fluorophenyl)bis(4-methoxyphenyl)phosphine oxide 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.
Physical & Chemical Properties
| Molecular Formula | C20H18FO3P |
| Molecular Weight | 356.33 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| 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) | 11.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F-containing |
Related fluorophenyl Standards
- (4-(2-Fluorophenyl)piperazin-1-yl)(1-methyl-3-(trifluoromethyl)-1H-pyrazol-4-yl)methanone (CAS 477709-05-0)
- N-(4-Fluorophenyl)-2-[(3,4,4-trifluorobut-3-en-1-yl)sulfanyl]pyridine-3-carboxamide (CAS 339106-84-2)
- N-((1-(4-Fluorophenyl)-1H-tetrazol-5-yl)methyl)-2-(4-nitrophenyl)acetamide (CAS 897623-63-1)
- N-(4-Fluorophenyl)-2-nitro-N-{[3-oxo-2-benzofuran-1(3H)-yliden]methyl}ethanimidohydrazide (CAS 477852-79-2)
- 3-(2-Fluorophenyl)-5-phenoxy-[1,2,4]triazolo[4,3-c]quinazoline (CAS 477853-48-8)
- 3-(4-Fluorophenyl)-6-(2-oxo-2-(piperidin-1-yl)ethyl)-3,6-dihydro-7H-[1,2,3]triazolo[4,5-d]pyrimidin-7-one (CAS 847384-05-8)
- Methyl 4-(((3-(2-fluorophenyl)-5-thioxo-1H-1,2,4-triazol-4(5H)-yl)imino)methyl)benzoate (CAS 573695-17-7)
- Methyl 4-(((3-(4-fluorophenyl)-5-thioxo-1H-1,2,4-triazol-4(5H)-yl)imino)methyl)benzoate (CAS 578746-67-5)
Recommended Standards
- 5-Methoxy-1,2-dimethyl-3-[(4-nitrophenoxy)methyl]indole-4,7-dione (CAS 192820-78-3)
- {[3-(3,4-Dimethoxyphenyl)-2-oxo-2H-chromen-7-yl]oxy}acetic acid (CAS 887871-24-1)
- Methyl 2-(3-cyano-4-nitrophenyl)-2-(3,4-dimethoxyphenyl)acetate (CAS 1923065-68-2)
- 1-Cyano-N-(2-nitrophenyl)pyrrolo[2,1-a]isoquinoline-3-carboxamide (CAS 853318-37-3)
- 5-Chloro-2-pyridinecarbonyl chloride (CAS 128073-03-0)
- 3-(4-Cyanophenyl)isoxazole-5-carboxylic acid (CAS 1152531-86-6)
- 3-([1,2,4]Triazolo[4,3-a]pyridin-3-yl)phenol (CAS 1401319-10-5)
- 3-Bromo-4-cyclopropoxyaniline (CAS 1243458-97-0)
- 1-(2,6-Dichlorophenyl)piperazine Hydrochloride (CAS 1507372-81-7)
- 2-(Benzo[d][1,3]dioxol-5-ylmethoxy)benzaldehyde (CAS 842957-76-0)
- 3-(5-Methyl-furan-2-yl)-benzaldehyde 3-(5-methyl-2-furyl)benzaldehyde 400745-03-1 (CAS 400745-03-1)
- 5-Bromo-3-((1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)imino)indolin-2-one (CAS 300567-61-7)
- (3-Methylfuran-2-yl)(piperazin-1-yl)methanone (CAS 681837-54-7)
- D-Ala21-Tirzepatide (CAS CATO-CPTD788913)
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