Triphenyl(p-tolyl)phosphonium bromide CAS 6031-78-3
| CAS No. | 6031-78-3 |
| Molecular Formula | C25H22P |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO supplies Triphenyl(p-tolyl)phosphonium bromide (CAS 6031-78-3), a certified reference material (molecular formula C25H22PBr, MW 433.33 g/mol) for analytical method development and quality control.
Structurally, Triphenyl(p-tolyl)phosphonium bromide (C25H22PBr) contains organophosphorus functionality, bromine substitution, a polycyclic aromatic system. The molecule exhibits a degree of unsaturation (DBE) of 14.5, corresponding to approximately 14 ring(s) or double-bond equivalent(s). With a molecular weight of 433.33 g/mol, it falls into the moderately-high-molecular-weight range. 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 | C25H22P Br |
| Molecular Weight | 433.33 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| 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) | 14.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Halogen Content | Br-containing |
Related Triphenyl Standards
- Triphenyl phosphite (CAS 101-02-0)
- Triphenyl(p-tolyl)phosphonium iodide (CAS 10111-23-6)
- 2,2,6-Triphenyl-2H-pyran-4(3H)-one (CAS 102593-55-5)
- 1-(3,3,5-Triphenyl-3H-pyrrol-2-yl)isoquinoline (CAS 10425-48-6)
- 1-(3,4,5-Triphenyl-1H-pyrrol-2-yl)isoquinoline (CAS 10425-52-2)
- 2,4,6-Triphenyl-1-(p-tolyl)pyridin-1-ium tetrafluoroborate (CAS 107108-26-9)
- Triphenyl(3,4,5-trimethoxybenzyl)phosphonium chloride (CAS 108683-61-0)
- (S)-1,1,2-Triphenyl-1,2-ethanediol (CAS 108998-83-0)
Recommended Standards
- 1,2-Dimethyl-6-oxo-1,6-dihydropyridine-3-carboxylic acid (CAS 1023813-29-7)
- N-[2,4-Dichloro-5-(propan-2-yloxy)phenyl]-2-({[(4-methoxyphenyl)carbamoyl]methyl}sulfanyl)acetamide (CAS 341964-58-7)
- Z-Leu-Leu-OH (CAS 7801-71-0)
- 4-(Pyrazin-2-yl)butan-2-ol (CAS 1341828-77-0)
- 3-(1,3-benzothiazol-2-yl)-4,4,4-trifluoro-3-hydroxybutanoic acid (CAS 923834-85-9)
- N-[2-(Acetyloxy)-3-chloropropyl]acetamide (CAS 53460-78-9)
- 2-(4-((Tert-butoxycarbonyl)amino)-1-hydroxycyclohexyl)acetic acid (CAS 1613269-44-5)
- (2-Fluoro-5,8-dioxaspiro[3.4]Octan-2-yl)methanol (CAS 2227205-69-6)
- N-((1-methylpiperidin-4-yl)methyl)cyclohexanamine (CAS 933684-87-8)
- [His]1-Acetylated Semaglutide (CAS CATO-C4X-2226219)
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