(2-(Dimethylamino)ethyl)triphenylphosphonium bromide CAS 21331-80-6
| CAS No. | 21331-80-6 |
| Molecular Formula | C22H25NP |
| 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.
(2-(Dimethylamino)ethyl)triphenylphosphonium bromide (CAS 21331-80-6) is a high-purity analytical reference standard with the molecular formula C22H25NPBr and a molecular weight of 414.33 g/mol.
The molecular framework of (2-(Dimethylamino)ethyl)triphenylphosphonium bromide (C22H25NPBr) is characterized by a nitrogen-containing heterocyclic scaffold, a nitrile group, organophosphorus functionality, bromine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C22H25NP Br |
| Molecular Weight | 414.33 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) | 10.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
Related Dimethylamino Standards
- 3-(DImethylamino)propanamide hydrochloride (CAS 1000395-57-2)
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- 3-((3-(Dimethylamino)propyl)amino)-7-fluoro-4-methyl-4H-benzo[e][1,2,4]thiadiazine 1,1-dioxide (CAS 1000574-72-0)
- 6-(Dimethylamino)-1H-indole-2-carboxylic acid (CAS 100060-36-4)
- 2-{4-[(dimethylamino)methyl]phenyl}benzonitrile (CAS 1000930-96-0)
- 2-(Dimethylamino)-3-(4-methylphenyl)-3H-thieno[2,3-d]imidazole-5-carboxylic acid (CAS 1000932-46-6)
- 2-(4-(Dimethylamino)phenyl)acetohydrazide (CAS 100133-14-0)
- (E)-3-(Dimethylamino)-1-(1-methyl-4-nitro-1h-pyrazol-3-yl)prop-2-en-1-one (CAS 1001500-83-9)
Recommended Standards
- N-(5-((4-Bromobenzyl)thio)-1,3,4-thiadiazol-2-yl)isobutyramide (CAS 392302-58-8)
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- O,O-Diacetyl-O (CAS 75820-95-0)
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- 1-Methyl-N-((3-methyl-1h-pyrazol-4-yl)methyl)-1h-pyrazol-4-amine (CAS 1156890-84-4)
- Ethyl propylvalinate (CAS 2380149-12-0)
- 1,4-Bis(2-(4-methoxyphenyl)-2-oxoethyl)-1H-1,2,4-triazol-4-ium bromide (CAS 161713-98-0)
- Insulin Degludec Impurity 2 (CAS CATO-C4X-21572)
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