Diphenyl-p-tolyl phosphate CAS 78-31-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 78-31-9 |
| Molecular Formula | C19H17O4P |
| Molecular Weight | 340.31 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Diphenyl-p-tolyl phosphate (CAS 78-31-9) is a pharmaceutical standards certified reference material from CATO. Molecular formula: C19H17O4P. Molecular weight: 340.31 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
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.) | 1957 |
Related Diphenyl Standards
- Diphenyl (hydroxy(phenyl)methyl)phosphonate (CAS 52364-32-6)
- Diphenyl-m-tolyl phosphate (CAS 69500-28-3)
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- Benzyl Diphenyl Phosphate (CAS 4218-62-6)
- Diphenyl((phenylsulfinyl)methyl)phosphine oxide (CAS 87762-75-2)
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- 1-(4-(3,5-Diphenyl-4,5-dihydro-1H-pyrazol-1-yl)phenyl)ethanone (CAS 90447-34-0)
Recommended Standards
- Cresyl Diphenyl Phosphate（mixture of isomers） (CAS 26444-49-5)
- 1-(4-(4-Fluorophenyl)-6-(trifluoromethyl)pyrimidin-2-yl)piperidin-4-amine (CAS 1018143-48-0)
- 1,2-DIbromo-2-chloro-1,1,4,4,4-pentafluorobutane (CAS 885276-01-7)
- (2R,3S,5R)-5-(6-Benzamido-9H-purin-9-yl)-2-(hydroxymethyl)tetrahydrofuran-3-yl formate (CAS 80615-00-5)
- 1-(Benzyloxy)-1H-1,2,3-triazole (CAS 26957-01-7)
- Benzene, ethenylmethyl-, homopolymer (CAS 9017-21-4)
- 4-((Propylamino)methyl)benzoic acid (CAS 331942-45-1)
- 2-Oxo-6-(thiophen-2-yl)-1,2-dihydropyrimidine-4-carboxylic acid (CAS 1018605-23-6)
- 4-Chlorophenyltriflate (CAS 29540-84-9)
- Semaglutide impurity 211 (CAS CATO-C4X-2226211)
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