Bis(4-bromophenyl)phenylphosphine Oxide CAS 93869-52-4
| CAS No. | 93869-52-4 |
| Molecular Formula | C18H13Br2OP |
| Molecular Weight | 436.08 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 436.08 g/mol gives Bis(4-bromophenyl)phenylphosphine Oxide distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Bis(4-bromophenyl)phenylphosphine Oxide (CAS 93869-52-4) is a high-purity analytical reference standard with the molecular formula C18H13Br2OP and a molecular weight of 436.08 g/mol.
Owing to a steroid core, organophosphorus functionality, a hydroxyl group, an ether linkage, bromine substitution, Bis(4-bromophenyl)phenylphosphine Oxide is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 436.08 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
CATO manufactures Bis(4-bromophenyl)phenylphosphine Oxide under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C18H13Br2OP |
| Molecular Weight | 436.08 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 |
| 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) | 11.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1983 |
| Halogen Content | Br-containing |
Related Bis Standards
- Bis(3-bromophenyl)phenylphosphine Oxide (CAS 1163698-32-5)
- 2-(2-((4-Bromophenyl)thio)-5-nitrophenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 2377609-06-6)
- N-(2-Bromophenyl)-1,1,1-trifluoro-N-((trifluoromethyl)sulfonyl)methanesulfonamide (CAS 1263376-75-5)
- N-(3-Bromophenyl)-1,1,1-trifluoro-N-((trifluoromethyl)sulfonyl)methanesulfonamide (CAS 1263377-36-1)
- N-(4-Bromophenyl)-1,1,1-trifluoro-N-((trifluoromethyl)sulfonyl)methanesulfonamide (CAS 191043-82-0)
- 2-[(4-Bromophenyl)sulfanyl]-6-(3,4-dichlorophenyl)pyridine-3-carbonitrile (CAS 252059-66-8)
- 3-((4-Bromophenyl)amino)-2-(3,4-dimethoxyphenyl)-1H-inden-1-one (CAS 1024337-22-1)
- 3-(((4-Bromophenyl)amino)methyl)-5,5-diphenylimidazolidine-2,4-dione (CAS 859-69-8)
Recommended Standards
- (2,5-Dibromophenyl)diphenylphosphineoxide (CAS 1629166-79-5)
- 1-Fluoro-2,3,4,5,6-pentakis(trifluoromethyl)benzene (CAS 81439-39-6)
- 1,3-Bis(2'bromo-4'-cyano-phenoxy)propane (CAS 93840-60-9)
- Benzenesulfonamide, 4-bromo-N-(4-bromo-2-nitrophenyl)- (CAS 10589-69-2)
- 2-(3-ethynylazetidin-1-yl)acetonitrile (CAS 2297798-61-7)
- 1-[5-(trifluoromethyl)pyridin-2-yl]ethan-1-ol (CAS 1345973-17-2)
- 2-(Trifluoromethyl)-4H-thiochromene-4-thione (CAS 938055-87-9)
- 5-Chloro-1,1-dioxo-isothiazol-3-one (CAS 1239320-63-8)
- (S)-cyclopropyl(3-fluoro-5-methylphenyl)methanamine (CAS 1212844-08-0)
- 1-(2-Bromo-5-methylpyridin-3-yl)ethan-1-one (CAS 1393532-60-9)
- 1-(2-Pyridyl)cyclopropanecarboxylic Acid (CAS 162960-26-1)
- 1-(2,5-Difluorophenyl)cyclopentanemethanamine (CAS 1369053-34-8)
- 5-Bromo-2-chloro-1,8-naphthyridine (CAS 1260880-09-8)
- Semaglutide impurity 46 (CAS CATO-C4X-222646)
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