[1,1'-Biphenyl]-2-yl diphenyl phosphate CAS 132-29-6
| CAS No. | 132-29-6 |
| Molecular Formula | C24H19O4P |
| Molecular Weight | 402.38 g/mol |
| 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.
[1,1'-Biphenyl]-2-yl diphenyl phosphate (CAS 132-29-6) is a high-purity analytical reference standard with the molecular formula C24H19O4P and a molecular weight of 402.38 g/mol.
[1,1'-Biphenyl]-2-yl diphenyl phosphate (C24H19O4P) contains a flavonoid core, a phosphate ester group, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C24H19O4P |
| Molecular Weight | 402.38 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| 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) | 15.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
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- 4-([1,1'-Biphenyl]-4-yl)-2-(4'-methyl-[1,1'-biphenyl]-4-yl)thiazole (CAS 1347815-04-6)
- 1-(4-([1,1'-Biphenyl]-4-yl)thiazol-2-yl)-4-(thiophen-2-yl)-1H-pyrazol-5-amine (CAS 955964-54-2)
- 1-([1,1'-Biphenyl]-4-yl)-3-(4-(4-methoxyphenyl)piperazin-1-yl)propan-1-one (CAS 477328-91-9)
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Recommended Standards
- dimethyl ((3aR,4R,6R,6aR)-6-(benzyloxymethyl)-4-hydroxy-2,2-dimethyltetrahydrofuro[3,4-d][1,3]dioxol-4-yl)methylphosphonate (CAS 117251-95-3)
- (2S,4R)-2-Methyl 1-(4-nitrobenzyl) 4-((methylsulfonyl)oxy)pyrrolidine-1,2-dicarboxylate (CAS 138324-82-0)
- [2,6-Bis[(dimethylamino)methyl]phenyl-C,N][(1,2,5,6-η)-1,5-cyclooctadiene]rhodium (CAS 115338-66-4)
- Pentafluorophenyldiphenylphosphate (CAS 138687-69-1)
- Ethyl 3-oxo-2-(ureidomethylene)butanoate (CAS 6319-01-3)
- tert-Butyl 3-bromo-7-methoxy-1H-indole-1-carboxylate (CAS 1823521-06-7)
- 6-Iodonaphthalen-1-ol (CAS 128542-53-0)
- Tofacitinib Impurity 41 (CAS CATO-C4X-107941)
- (S)-2-((R)-3-((tert-Butoxycarbonyl)amino)-2-oxopyrrolidin-1-yl)-4-methylpentanoic acid (CAS 82611-48-1)
- 4-[1-(benzyloxy)ethyl]aniline (CAS 1305772-89-7)
- 4-Chloro-N-(1-(thiophen-2-yl)ethyl)aniline (CAS 1019619-42-1)
- 5-Bromo-N-(3-cyanothiophen-2-yl)furan-2-carboxamide (CAS 923838-22-6)
- Q46947FE7K 198153-51-4 Pegylated Interfeaon alfa-2A PEG-IFN alfa-2A PEG-Interferon alfa-2A UNII-Q46947FE7K Pegasys Peginterferon alfa-2a Ro 25-8310/000 Peginterferon Alfa-2a [USAN:INN:BAN] Pegylated-interferon alfa 2a Interferon alphaA (human leukocyte), mono(N2,N6-dicarboxy-L-lysyl)deriv., diester with alpha-methyl-omega-hydroxypoly(oxy-1,2-ethanediyl Interferon alphaA (human leukocyte), mono(N(sup 2),N(sup 6)-dicarboxyl-L-lysyl) derivative, diester with alpha-methyl-omega-hydroxypoly(oxy-1,2-ethanediyl) Interferon alphaA (human leukocyte), mono(N(sup 2),N(sup 6)-dicarboxyl-L-lysyl) derivative, diester with polyethylene glycol monomethyl ether HSDB 8140 (CAS 198153-51-4)
- Semaglutide impurity 104(Fmoc-D-His-Aib) (CAS 2171211-18-8)
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