Buta-1,3-dien-1-yltriphenylphosphonium bromide CAS 21310-07-6
| CAS No. | 21310-07-6 |
| Molecular Formula | C22H20P |
| 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 Buta-1,3-dien-1-yltriphenylphosphonium bromide.
Buta-1,3-dien-1-yltriphenylphosphonium bromide (CAS 21310-07-6) is a high-purity analytical reference standard with the molecular formula C22H20PBr and a molecular weight of 395.28 g/mol.
Based on its molecular formula C22H20PBr, Buta-1,3-dien-1-yltriphenylphosphonium bromide contains organophosphorus functionality, bromine substitution, a polycyclic aromatic system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 395.28 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
As a certified reference material (CRM), Buta-1,3-dien-1-yltriphenylphosphonium bromide meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C22H20P Br |
| Molecular Weight | 395.28 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) | 12.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
| Halogen Content | Br-containing |
Related Buta Standards
- 4,4'-(Buta-1,3-diyne-1,4-diyl)dibenzonitrile (CAS 103140-39-2)
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- (buta-1,3-diyne-1,4-diylbis(4,1-phenylene))diboronicacid (CAS 1223038-68-3)
- (E)-2-(Buta-1,3-dien-1-yl)benzaldehyde (CAS 124300-57-8)
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- 1-(Buta-1,3-diyn-1-yl)-4-chlorobenzene (CAS 131292-29-0)
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- (E)-2-(Buta-1,3-dien-1-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 143825-96-1)
Recommended Standards
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- methyl 4-methyl-6-oxo-1,6-dihydropyridine-3-carboxylate (CAS 1224465-02-4)
- 3-Bromo-5-methoxy-4-propoxybenzoyl chloride (CAS 1160250-42-9)
- 2-Bromobenzyl thiocyanate (CAS 926311-08-2)
- 2-Bromo-4-(4-methoxybenzyl)-6-nitroaniline (CAS 1314987-29-5)
- 3-(Phenylthio)-N-(2-(3-(trifluoromethyl)phenoxy)ethyl)propanamide (CAS 1105211-97-9)
- 497181-19-8 4-bromo-2,6-difluorobenzoyl chloride DTXSID00378352 (CAS 497181-19-8)
- 2-Fluoro-6-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)aniline (CAS 2268776-45-8)
- Compstatin control peptide (CAS 301544-78-5)
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