2-Ethylhexyl Diphenyl Phosphate CAS 1241-94-7
| CAS No. | 1241-94-7 |
| Molecular Formula | C20H27O4P |
| Molecular Weight | 362.40 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-Ethylhexyl Diphenyl Phosphate (C20H27O4P) 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 aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
2-Ethylhexyl Diphenyl Phosphate (CAS 1241-94-7), molecular formula C20H27O4P and molecular weight 362.40 g/mol, is a CATO reference standard with documented purity and traceability.
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 | C20H27O4P |
| Molecular Weight | 362.40 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 |
| Degree of Unsaturation (DBE) | 7.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
Related Ethylhexyl Standards
- 2,4-Db-2-Ethylhexyl Ester (CAS 1320-15-6)
- 1-((2-Ethylhexyl)amino)-4-(methylamino)anthracene-9,10-dione (CAS 75476-94-7)
- [5-(2-Ethylhexyl)thiophen-2-yl]trimethylstannane (CAS 1429306-71-7)
- 2,4,5-T-2-Ethylhexyl Ester (CAS 1928-47-8)
- Bis(2-ethylhexyl) Phosphate-d34 (CAS 1773493-20-1)
- Bis(2-ethylhexyl) glutarate (CAS 21302-20-5)
- Benzyl 2-Ethylhexyl Phthalate (CAS 27215-22-1)
- Benzyl 2-Ethylhexyl Phthalate (CAS 18750-05-5)
Recommended Standards
- Octyl phenyl phosphate (CAS 115-88-8)
- (6α,11β)-6,9-Difluoro-11-hydroxypregna-1,4,16-triene-3,20-dione (CAS 1027011-66-0)
- Relebactam Impurity 89 (CAS 1174019-43-2)
- 6-(1-Methyl-4-pyrazolyl)-3-[(2-methyl-2H-indazol-5-yl)thio]-[1,2,4]triazolo[4,3-b]pyridazine (CAS 1357072-61-7)
- 2-(2-(Benzyloxy)-5-(tert-butyl)phenyl)-2-methylpropanal (CAS 1246213-28-4)
- Methyl 4-cyano-3-(2,5-dimethyl-1H-pyrrol-1-yl)thiophene-2-carboxylate (CAS 900019-87-6)
- (Piperidin-4-yl)phosphonic acid (CAS 216870-40-5)
- Cyclobutyl-(tetrahydro-pyran-4-yl)-amine (CAS 885280-95-5)
- 3-Amino-2-methyl-5-(4-methylphenyl)-3h,4h-thieno[2,3-d]pyrimidin-4-one (CAS 300818-36-4)
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- 2-(4-Oxo-3-phenyl-3,4-dihydrophthalazin-1-yl)acetic acid (CAS 345228-18-4)
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- benzyl (4S)-1-methyl-2,6-dioxo-hexahydropyrimidine-4-carboxylate (CAS 103300-85-2)
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