1,3-Bis(4-bromophenyl)-5-phenyl-1,3,5-diazaphosphinane 5-selenide CAS 81439-70-5
| CAS No. | 81439-70-5 |
| Molecular Formula | C21H19Br2N2PSe |
| Molecular Weight | 569.13 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 1,3-Bis(4-bromophenyl)-5-phenyl-1,3,5-diazaphosphinane 5-selenide 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.
1,3-Bis(4-bromophenyl)-5-phenyl-1,3,5-diazaphosphinane 5-selenide (CAS 81439-70-5) is a high-purity analytical reference standard with the molecular formula C21H19Br2N2PSe and a molecular weight of 569.13 g/mol.
Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, organophosphorus functionality, bromine substitution, 1,3-Bis(4-bromophenyl)-5-phenyl-1,3,5-diazaphosphinane 5-selenide is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 569.13 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C21H19Br2N2PSe |
| Molecular Weight | 569.13 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 DMSO, DMF, methanol |
| 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.) | 1980 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
Related Bis Standards
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- 5,11-Bis(4-bromophenyl)-5,11-dihydroindolo[3,2-b]carbazole (CAS 1571136-18-9)
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Recommended Standards
- 4,4'-Dibromo-6,6'-dichloro-2,2'-diethoxy-1,1'-binaphthalene (CAS 431043-59-3)
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- CAS 852043-41-5 (CAS 852043-41-5)
- Triptycenetris(1,2,5-selenadiazole) (CAS 2771312-95-7)
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- 6-Isopropylpyridine-3-carbothioamide (CAS 1256812-37-9)
- 1,3-Dimethyl-2-thioxo-2,3-dihydroquinazolin-4(1H)-one (CAS 17730-53-9)
- Dimethyl Terephthalate (CAS 120-61-6)
- 4-Bromopyrazole-3-carbonitrile (CAS 288246-16-2)
- 1-Benzyl-2-(benzylthio)pyrimidin-4(1H)-one (CAS 6146-26-5)
- 1-Boc-4-fluoro-1H-indazole (CAS 1305320-65-3)
- 2-Ethoxy-6-(((3-fluorophenyl)amino)methyl)phenol (CAS 416869-28-8)
- 1-Azabicyclo[2.2.1]heptane-7-carboxylic acid (CAS 792905-68-1)
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