Tocopherol Impurity 26 CAS 102340-61-4
| CAS No. | 102340-61-4 |
| Molecular Formula | C33H56O7 |
| Molecular Weight | 564.79 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Tocopherol Impurity 26 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.
As a process- or degradation-related impurity, Tocopherol Impurity 26 (CAS 102340-61-4, C33H56O7) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Tocopherol Impurity 26 (C33H56O7) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
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.
Physical & Chemical Properties
| Molecular Formula | C33H56O7 |
| Molecular Weight | 564.79 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | >95% |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
Related Tocopherol Standards
- Tocopherol Impurity 14 (CAS CATO-C4X-119514)
- α-Tocopherol glucoside (CAS 104832-72-6)
- D-α-Tocopherol Succinate (CAS 4345-03-3)
- Tocopherol impurity 40 (CAS CATO-C4X-119540)
- Alpha-Tocopherol-D6 Acetate (CAS 143731-16-2)
- Tocopherol Impurity 20 (CAS 7695-91-2)
- Tocopherol Impurity 36 (CAS CATO-C4X-119536)
- alpha-Tocopherol quinol (CAS 14745-36-9)
Recommended Standards
- 11-[3-(dimethylamino)-2-methyl-propyl]-5,6-dihydrobenzo[b][1]benzazepin-3-ol 11-[3-(dimethylamino)-2-methylpropyl]-5,6-dihydrobenzo[b][1]benzazepin-3-ol 23582-02-7 A816779 (CAS 23582-02-7)
- Phenothiazinyl Perazine (CAS 103331-66-4)
- tert-Butyl 7-(3-((tert-butyldiphenylsilyl)oxy)propyl)-5H-pyrido[4,3-b]indole-5-carboxylate (CAS 2267291-21-2)
- N-(3,5-bis(trifluoromethyl)phenyl)-4-((3-chloro-5-(trifluoromethyl)pyridin-2-yl)oxy)benzenesulfonamide (CAS 338775-43-2)
- Piroxicam Impurity 27 (CAS 1184017-37-5)
- Pitavastatin Impurity 65 (CAS CATO-C4X-103765)
- Isosorbide Dinitrate, Diluted EP Impurity C (CAS 16051-77-7)
- (E)-6-(2-(dimethylamino)vinyl)-5-nityopyrimidine-2,4-diol (CAS 116705-41-0)
- Ethyl (R)-2-(3,5-difluorophenyl)-2-hydroxyacetate (CAS 888319-43-5)
- 3-(methylthio)propyl (methanesulfonate) (CAS 232944-38-6)
- 3-Ethylthiophene-2-carboxamide (CAS 189330-07-2)
- 2’,6’-dioxospiro[adamantane-2,4’-piperidine]-3’,5’-dicarbonitrile (CAS 405889-71-6)
- tert-Butyl ((1S,2R)-2-(hydroxymethyl)cyclopropyl)carbamate (CAS 177472-48-9)
- D-Leu26-Tirzepatide (CAS CATO-CPTD788908)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com