Bis(4-bromophenyl)(phenyl)phosphane CAS 84591-80-0
| CAS No. | 84591-80-0 |
| Molecular Formula | C18H13Br2P |
| Molecular Weight | 420.08 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.
Bis(4-bromophenyl)(phenyl)phosphane (CAS 84591-80-0) is a high-purity analytical reference standard with the molecular formula C18H13Br2P and a molecular weight of 420.08 g/mol.
Owing to organophosphorus functionality, bromine substitution, a polycyclic aromatic system, Bis(4-bromophenyl)(phenyl)phosphane is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 420.08 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C18H13Br2P |
| Molecular Weight | 420.08 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 |
| 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.) | 1981 |
| Halogen Content | Br-containing |
Related Bis Standards
- 2-(3-Bromophenyl)-4-methyl-6-(phenylamino)quinazoline-5,8-dione (CAS 61416-86-2)
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- 2-((5-(3-Bromophenyl)-1,3,4-oxadiazol-2-yl)thio)-N-(4-methoxyphenyl)acetamide (CAS 336174-67-5)
- 2-((5-(4-Bromophenyl)-1,3,4-oxadiazol-2-yl)thio)-N-(2-methoxyphenyl)acetamide (CAS 336180-67-7)
- 2-{[4-(4-bromophenyl)-5-(phenoxymethyl)-4h-1,2,4-triazol-3-yl]sulfanyl}acetic acid (CAS 893725-81-0)
- N-(4-Bromophenyl)-2-((5-(4-methoxyphenyl)-1,3,4-oxadiazol-2-yl)thio)acetamide (CAS 312279-30-4)
- N-(5-(4-Bromophenyl)-1,3,4-thiadiazol-2-yl)-2,4-dimethoxybenzamide (CAS 392243-75-3)
- 1-[(4-Bromophenyl)methyl]-3-(4-methylphenyl)-1H-indole-2-carboxylic acid (CAS 866155-19-3)
Recommended Standards
- Tributyl(2-selenophenyl)stannane (CAS 116886-71-6)
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- 1H-Perfluorooctane (CAS 335-65-9)
- 2,4,6-Trioctyl-1,3,5,2,4,6-trioxatriborinane (CAS 142169-80-0)
- (7-(2-Fluorophenyl)-1,4-thiazepan-4-yl)(thiophen-2-yl)methanone (CAS 1705100-60-2)
- 4-Methyl-N-(pent-1-en-3-yl)benzenesulfonamide (CAS 124070-39-9)
- Ethyl trans-4-Aminocyclohexanecarboxylate HCl (CAS 2084-28-8)
- 2-(Cyclohexylmethyl)-3-(methylthio)phenol (CAS 1243370-07-1)
- Methyl 2-amino-3-(2-fluorophenyl)propanoate (CAS 191930-42-4)
- Ilaprazole Dimer Impurity 39 (CAS CATO-C4X-113039)
- 4,6-Dimethyl-3-hydroxypyridine (CAS 27296-77-1)
- 6-(2-Methoxyphenyl)-2-oxo-1,2-dihydropyridine-3-carboxylic acid (CAS 1204296-71-8)
- 1,1'-(4,6-Dihydroxy-5-methyl-1,3-phenylene)diethanone (CAS 22304-66-1)
- Tirzepatide Impurity 50 (CAS CATO-C4X-324050)
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