2-(Diphenylphosphaneyl)phenol hydrobromide CAS 81323-71-9
| CAS No. | 81323-71-9 |
| Molecular Formula | C18H15OP |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 2-(Diphenylphosphaneyl)phenol hydrobromide is closely related to a steroid core, organophosphorus functionality, a hydroxyl group, an ether linkage, bromine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
2-(Diphenylphosphaneyl)phenol hydrobromide (CAS 81323-71-9) is a high-purity analytical reference standard with the molecular formula C18H15OPHBr and a molecular weight of 359.20 g/mol.
Structurally, 2-(Diphenylphosphaneyl)phenol hydrobromide (C18H15OPHBr) contains a steroid core, organophosphorus functionality, a hydroxyl group, an ether linkage, bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 10.5, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 359.20 g/mol, it falls into the moderately-high-molecular-weight range. 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).
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), 2-(Diphenylphosphaneyl)phenol hydrobromide 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 | C18H15OP HBr |
| Molecular Weight | 359.20 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, DMSO |
| 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.) | 1980 |
| Halogen Content | Br-containing |
Related Diphenylphosphaneyl Standards
- 1,4-Bis((diphenylphosphaneyl)oxy)butane (CAS 10274-30-3)
- 1,3-Bis(diphenylphosphaneyl)benzene (CAS 1179-05-1)
- 2,2'-Bis((diphenylphosphaneyl)methyl)-1,1'-binaphthalene (CAS 128347-41-1)
- ((Diphenylphosphaneyl)methyl)diphenylphosphine oxide (CAS 23176-18-3)
- 3-(Diphenylphosphaneyl)propanenitrile (CAS 5032-65-5)
- Methyl 2-(diphenylphosphaneyl)-4-((15-oxo-19-((3aS,4S,6aR)-2-oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl)-4,7,10-trioxa-14-azanonadecyl)carbamoyl)benzoate (CAS 608514-42-7)
Recommended Standards
- 3,4-Diphenylfuran (CAS 954-54-1)
- Adipic acid compound with dimethyl terephthalate and butane-1,4-diol (CAS 55231-08-8)
- 2-Phenyl-4-vinyloxazole (CAS 350810-76-3)
- 1-(3-Chloro-2-methylphenyl)-3-methyl-1H-pyrazol-5-amine (CAS 1020703-64-3)
- 9-Pentafluoroethyl-9H-fluoren-9-ol (CAS 722491-63-6)
- LCZ-696 Impurity 72 calcium salt (CAS CATO-C4X-169672)
- 2,6-Dichloro-3-(bromomethyl)pyridine (CAS 58596-59-1)
- Sodium (Z)-1-cyanoprop-1-en-2-olate (CAS 1199252-10-2)
- Naftidrofuryl-D4 (CAS 1215649-28-7)
- Gastric Inhibitory Polypeptide (human) (CAS 100040-31-1)
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