Tris(Nonylphenyl) Phosphite CAS 26523-78-4
| CAS No. | 26523-78-4 |
| Molecular Formula | C45H69O3P |
| Molecular Weight | 689.00 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Tris(Nonylphenyl) Phosphite (CAS 26523-78-4), molecular formula C45H69O3P and molecular weight 689.00 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, Tris(Nonylphenyl) Phosphite (C45H69O3P) contains a phosphonate group, a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system. The molecule exhibits a degree of unsaturation (DBE) of 11.5, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 689.00 g/mol, it falls into the high-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C45H69O3P |
| Molecular Weight | 689.00 g/mol |
| Purity | Technical Grade |
| Storage | Store at room temperature, 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 Tris Standards
- Tris(4-nonylphenyl) phosphite (CAS 3050-88-2)
- Bis(4-nonylphenyl) perylene-3,10-dicarboxylate (CAS 104989-10-8)
- Nonylphenyl diphenyl phosphate (CAS 64532-97-4)
- Bis(4-nonylphenyl)amine (CAS 24925-59-5)
- 4-Nonylphenyl acetate (CAS 32604-44-7)
- 119259-53-9 2-(4-Nonylphenyl)pyrimidin-5-ol DTXSID30622658 (CAS 119259-53-9)
- 2-(4-NOnylphenyl)ethanol (CAS 1314988-14-1)
- 1-(4-Nonylphenyl)ethan-1-one (CAS 37593-05-8)
Recommended Standards
- (2,4,6,8-Tetramethyl-1,3,5,7,2,4,6,8-tetraoxatetrasilocane-2,4,6,8-tetrayl)tetrakis(propane-3,1-diyl) tetraacrylate (CAS 71550-64-6)
- 16784-72-8 7KV2DH7E7A Tri(o-nonylphenyl) phosphite Phenol, 2-nonyl-, 1,1',1''-phosphite Phenol, 2-nonyl-, phosphite (3:1) o-Nonylphenol, phosphite (3:1) Tris(o-nonylphenyl) phosphite UNII-7KV2DH7E7A (CAS 16784-72-8)
- 3,9-Diethyl-5,11-bis(4-octylphenyl)-5,11-dihydroindolo[3,2-b]carbazole (CAS 919513-72-7)
- Brain CPE (CAS 112130-78-6)
- 2,4-Dichloro-5-(1,1-difluoroethyl)pyrimidine (CAS 2776191-13-8)
- 2-(3,4-Diethoxyphenyl)-1-{4-[(3-phenyl-1,2,4-oxadiazol-5-yl)methyl]piperidin-1-yl}ethan-1-one (CAS 1775399-45-5)
- 4-Ethyl-3-methanesulfonylbenzoic acid (CAS 213598-12-0)
- 2-Bromo-4-methylpyrimidine (CAS 130645-48-6)
- 1-(Tert-butoxycarbonyl)-3-(trifluoromethyl)azetidine-3-carboxylic acid (CAS 1781010-80-7)
- (9H-Fluoren-9-yl)methyl (3-ethynylphenyl)carbamate (CAS 587878-72-6)
- 2-Chloro-6-ethylpyridine (CAS 109201-46-9)
- 582305-43-9 1-(Benzenesulfonyl)-5-bromo-3-iodo-1H-indole DTXSID60651259 (CAS 582305-43-9)
- 2-Fluoro-3-propoxyphenol (CAS 1881328-49-9)
- Neuroendocrine Regulatory Peptide-1 (human) (H-6622.1000) (CAS 954420-50-9)
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