Diphenyl (hydroxy(phenyl)methyl)phosphonate CAS 52364-32-6
| CAS No. | 52364-32-6 |
| Molecular Formula | C19H17O4P |
| Molecular Weight | 340.31 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C19H17O4P, Diphenyl (hydroxy(phenyl)methyl)phosphonate contains a flavonoid core, a phosphate ester group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 340.31 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
CATO supplies Diphenyl (hydroxy(phenyl)methyl)phosphonate (CAS 52364-32-6), a certified reference material (molecular formula C19H17O4P, MW 340.31 g/mol) for analytical method development and quality control.
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.
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 | C19H17O4P |
| Molecular Weight | 340.31 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, 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) | 11.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1971 |
Related Diphenyl Standards
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- Diphenyl-o-tolyl phosphate (CAS 5254-12-6)
- Diphenyl-p-tolyl phosphate (CAS 78-31-9)
- Benzyl Diphenyl Phosphate (CAS 4218-62-6)
- Diphenyl((phenylsulfinyl)methyl)phosphine oxide (CAS 87762-75-2)
- N-(4,5-Diphenyl-1H-1,2,3-triazol-1-yl)benzamide (CAS 61588-68-9)
- 3-Methyl-1,6-diphenyl-1,4,5,6-tetrahydro-pyrazolo[4,3-f]pyrrolo[1,2-a][1,4]diazepine (CAS 1243023-65-5)
- 1-(4-(3,5-Diphenyl-4,5-dihydro-1H-pyrazol-1-yl)phenyl)ethanone (CAS 90447-34-0)
Recommended Standards
- 1,2-DIbromo-2-chloro-1,1,4,4,4-pentafluorobutane (CAS 885276-01-7)
- N-(2-(piperidin-2-yl)ethyl)-3,5-bis(trifluoromethyl)aniline (CAS 195371-86-9)
- N-(4-fluorophenyl)-1-(4-nitrobenzyl)-1H-imidazole-4-carboxamide (CAS 1351804-44-8)
- 2-Amino-1-(4-fluorophenyl)-2-oxoethyl 1-oxo-1,2-dihydroisoquinoline-3-carboxylate (CAS 1280979-58-9)
- 3-Azetidinyl nicotinate (CAS 1220021-28-2)
- 3-Amino-5-(difluoromethyl)pyrazole (CAS 1284220-49-0)
- 4-[(3,4-Difluorobenzoyl)Amino]-5-(3-Methoxypropyl-Pentylamino)-5-Oxopentanoic Acid (CAS 111106-23-1)
- 3-((Furan-2-ylmethyl)thio)-5-methylbenzene-1,2-diol (CAS 923267-55-4)
- 4-(4-Bromo-1h-pyrazol-1-yl)benzonitrile (CAS 1184544-36-2)
- 3-Bromo-1-(oxan-2-yl)-1h-pyrazole (CAS 1044270-96-3)
- 5-(4-Methoxyphenoxy)-2-(methylthio)pyrimidine-4,6-diol (CAS 1375064-42-8)
- rac-tert-butyl N-[(3R,4S)-4-(2-fluorophenyl)pyrrolidin-3-yl]carbamate (CAS 1260602-03-6)
- Upadacitinib Impurity 195 (CAS CATO-C4X-2405195)
- Semaglutide impurity 266 (CAS CATO-C4X-2226266)
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