(2R)-α-Tocopherol (Mixture of Diastereomers) CAS 895518-38-4
| CAS No. | 895518-38-4 |
| Molecular Formula | C29H50O2 |
| Molecular Weight | 430.71 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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 supplies (2R)-α-Tocopherol (Mixture of Diastereomers) (CAS 895518-38-4), a certified reference material (molecular formula C29H50O2, MW 430.71 g/mol) for analytical method development and quality control.
Owing to a steroid core, a hydroxyl group, an ether linkage, (2R)-α-Tocopherol (Mixture of Diastereomers) is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 430.71 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
As a certified reference material (CRM), (2R)-α-Tocopherol (Mixture of Diastereomers) 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 | C29H50O2 |
| Molecular Weight | 430.71 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 |
| CAS Registry Year (est.) | 1987 |
Related R Standards
- (2S)-α-Tocopherol (Mixture of Diastereomers) (CAS 1411583-24-8)
- Tocopherol Impurity 23 (Deshydroxy Tocopherol Quinone) (CAS 75917-94-1)
- Tocopherol impurity 37 (CAS 185672-33-7)
- DL-Tocopherol (CAS 2074-53-5)
- Tocopherol Impurity 25 (CAS 69371-91-1)
- Tocopherol Impurity 32 (CAS CATO-C4X-119532)
- Tocopherol Impurity 4 (CAS 3808-26-2)
- b-Tocopherol-d3(major) (CAS 936230-75-0)
Recommended Standards
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- (2R, 4S, 8R)-α-Tocopherol (CAS 78656-13-0)
- (2R, 4S, 8S)-α-Tocopherol (CAS 77171-98-3)
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