All-rac-alfa-Tocopherol EP Impurity C (Mixture of Isomers) CAS CATO-C4X-119519
| CAS No. | CATO-C4X-119519 |
| Molecular Formula | 3*C30H52O2 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
All-rac-alfa-Tocopherol EP Impurity C (Mixture of Isomers) (CAS CATO-C4X-119519) is a certified pharmaceutical impurity reference standard with the molecular formula C30H52O2 and a molecular weight of 444.74 g/mol.
The molecular framework of All-rac-alfa-Tocopherol EP Impurity C (Mixture of Isomers) (C30H52O2) is characterized by a steroid core, a hydroxyl group, an ether linkage. 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 quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
As a certified reference material (CRM), All-rac-alfa-Tocopherol EP Impurity C (Mixture of Isomers) meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | 3*C30H52O2 |
| Molecular Weight | 444.74 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
Recommended Standards
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- 3-(2-(1-(Chloromethyl)cyclopropyl)ethyl)thiophene (CAS 1489471-85-3)
- 1-(3,5-Difluorophenyl)-3,3-dimethylbutan-1-one (CAS 898764-98-2)
- 1-(4-Cyano-phenyl)-2-(1,3-dioxolan-2-yl)-ethanone (CAS 1166996-43-5)
- Diethyl 2-(2-phenylhydrazono)malonate (CAS 6134-59-4)
- 4-(Sec-butyl)benzenesulfonamide (CAS 91252-28-7)
- 2-(Trifluoromethyl)-3,6-dihydro-2H-pyran-2-carboxylic acid (CAS 134224-67-2)
- Semaglutide impurity 89 (CAS CATO-C4X-222689)
Why CATO?
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