Diphenyl phosphate CAS 838-85-7
| CAS No. | 838-85-7 |
| Molecular Formula | C12H11O4P |
| Molecular Weight | 250.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Diphenyl phosphate (CAS 838-85-7), molecular formula C12H11O4P and molecular weight 250.19 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of Diphenyl phosphate (C12H11O4P) is characterized by a phosphate ester group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures Diphenyl phosphate under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C12H11O4P |
| Molecular Weight | 250.19 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | >95% |
| 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; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
Related Diphenyl Standards
- 2,6-Diphenyl-2H-pyran-4(3H)-one (CAS 126855-57-0)
- 1,8-Diphenyl-1,3,5,7-octatetrayne (CAS 4572-12-7)
- 2,2-Diphenyl-2H-pyran-4(3H)-one (CAS 2683-04-7)
- Diphenyl-1H-pyrazole-4,5-diamine (CAS 122128-84-1)
- (1,3-Diphenyl-1H-pyrazol-5-yl)methanol (CAS 16492-63-0)
- (1,3-Diphenyl-1h-pyrazol-4-yl)methanol (CAS 40278-32-8)
- (1,5-Diphenyl-1H-pyrazol-3-yl)methanol (CAS 945984-78-1)
- 4,5-Diphenyl-1H-imidazole-1,2-diamine (CAS 19933-51-8)
Recommended Standards
- Ethyl 2-(2-fluoro-4-(trifluoromethyl)phenyl)acetate (CAS 220530-99-4)
- Ethyl 4,6-dihydroxy-2-oxo-2H-chromene-3-carboxylate (CAS 100037-65-8)
- Ethyl (S)-2-(((trifluoromethyl)sulfonyl)oxy)propanoate (CAS 84028-88-6)
- Ethyl 4,7-dihydroxy-2-oxo-2H-chromene-3-carboxylate (CAS 100037-66-9)
- 207738-11-2 Acetic acid--thulium--water (3/1/1) DTXSID70583618 (CAS 207738-11-2)
- (1-Benzhydryl-2-methylazetidin-3-yl)methanol (CAS 2231673-88-2)
- Ethylmercury chloride (CAS 107-27-7)
- 1-(3-Chloro-4-methylphenyl)-2,5-dimethyl-1H-pyrrole-3-carbaldehyde (CAS 714278-09-8)
- Benzyl ((1-((S)-2-aminopropanoyl)piperidin-3-yl)methyl)(methyl)carbamate (CAS 1354025-71-0)
- ZHC-116 Impurity 10 (CAS CATO-C4X-238810)
- 4-(3-Bromophenyl)pyrimidine-2(1H)-thione (CAS 874766-81-1)
- 4-(4-Ethylpiperazino)phenylboronic Acid Pinacol Ester (CAS 656257-45-3)
- 2-((1H-imidazol-1-yl)methyl)benzonitrile (CAS 143426-58-8)
- Endo-Ala35-Tirzepatide (CAS CATO-CPTD788687)
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