Isobutyltriphenylphosphonium Bromide CAS 22884-29-3
| CAS No. | 22884-29-3 |
| Molecular Formula | C22H24P |
| Molecular Weight | N/A |
| 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 Isobutyltriphenylphosphonium Bromide.
Isobutyltriphenylphosphonium Bromide (CAS 22884-29-3) is a high-purity analytical reference standard with the molecular formula C22H24PBr and a molecular weight of 399.31 g/mol.
Owing to organophosphorus functionality, bromine substitution, a polycyclic aromatic system, Isobutyltriphenylphosphonium Bromide is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 399.31 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.
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 | C22H24P Br |
| Molecular Weight | 399.31 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, 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) | 10.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
| Halogen Content | Br-containing |
Related Isobutyltriphenylphosphonium Standards
Recommended Standards
- Glycidyl propargyl ether (CAS 18180-30-8)
- 5-Bromo-1-tert-butyl-6-fluorobenzotriazole (CAS 1365271-86-8)
- 1-((4-Chlorophenyl)sulfonyl)piperidine (CAS 22771-98-8)
- (S)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-2-methyldodec-11-enoic acid (CAS 1640968-91-7)
- Ethyl 2-(4-chloro-2-(4H-1,2,4-triazol-4-yl)phenoxy)acetate (CAS 1351393-57-1)
- 2-Chloro-N-cyclohexyl-N-methyl-4-nitrobenzamide (CAS 331845-70-6)
- Cenobamate Impurity 16 (CAS 1259059-74-9)
- Regadenoson Impurity 42 (CAS CATO-C4X-198542)
- 3-(1H-Indol-2-yl)-N-phenyl-1H-pyrazole-4-carboxamide (CAS 827318-55-8)
- Des-Ile12-Aib13-Tirzepatide (CAS CATO-CPTD788960)
Why CATO?
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