Cresyl Diphenyl Phosphate（mixture of isomers） CAS 26444-49-5
| CAS No. | 26444-49-5 |
| Molecular Formula | C19H17O4P |
| Molecular Weight | 340.31 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Cresyl Diphenyl Phosphate（mixture of isomers） (CAS 26444-49-5) is a high-purity analytical reference standard with the molecular formula C19H17O4P and a molecular weight of 340.31 g/mol.
Based on its molecular formula C19H17O4P, Cresyl Diphenyl Phosphate（mixture of isomers） 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 aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
CATO manufactures Cresyl Diphenyl Phosphate（mixture of isomers） 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 | C19H17O4P |
| Molecular Weight | 340.31 g/mol |
| Appearance | Pale yellow to 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) | 11.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1964 |
Related Cresyl Standards
Recommended Standards
- Benzyl Diphenyl Phosphate (CAS 4218-62-6)
- 1-(4-(4-Fluorophenyl)-6-(trifluoromethyl)pyrimidin-2-yl)piperidin-4-amine (CAS 1018143-48-0)
- Diphenyl-p-tolyl phosphate (CAS 78-31-9)
- 1-Tosyl-3-(trifluoromethyl)-1H-pyrrolo[2,3-b]pyridine (CAS 1027297-78-4)
- N-Methyl-1H-pyrazol-4-amine (CAS 28466-28-6)
- 3-(Propan-2-yl)-1,4-diazepan-2-one (CAS 1516979-48-8)
- (R)-1-Boc-2-propylpiperazine Hydrochloride (CAS 1217449-00-7)
- 6-(2-methylpropoxy)pyridin-3-ol (CAS 1256786-97-6)
- 1,2-Bis(o-nitrophenoxy)ethane (CAS 51661-19-9)
- (3-Bromo-2-chloro-6-fluorophenyl)(methyl)sulfane (CAS 2166631-47-4)
- N-(4-Bromophenyl)-2-((6-ethylthieno[2,3-d]pyrimidin-4-yl)thio)acetamide (CAS 421578-44-1)
- 2-((4-Chlorophenyl)amino)-4,9-dioxo-4,9-dihydronaphtho[2,3-b]thiophene-3-carboxylic acid (CAS 1258637-95-4)
- 5-Amino-2-(hydroxymethyl)benzoic acid (CAS 854644-75-0)
- Peptide Impurity 12 (CAS CATO-CPTD788812)
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