Tocopherol Impurity 20 CAS 7695-91-2
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 7695-91-2 |
| Molecular Formula | C31H52O3 |
| Molecular Weight | 472.74 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Tocopherol Impurity 20 (CAS 7695-91-2) is a high-purity pharmacopoeial impurity standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C31H52O3. Molecular weight: 472.74 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C31H52O3 |
| Molecular Weight | 472.74 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1959 |
Related Tocopherol Standards
- Tocopherol Impurity 36 (CAS CATO-C4X-119536)
- Alpha-Tocopherol-D6 Acetate (CAS 143731-16-2)
- alpha-Tocopherol quinol (CAS 14745-36-9)
- Tocopherol Impurity 30 (CAS CATO-C4X-119530)
- Tocopherol Impurity 31 (CAS CATO-C4X-119531)
- δ-Tocopherol Acetate (CAS 13027-26-4)
- Tocopherol Impurity 33 (CAS CATO-C4X-119533)
- Tocopherol impurity 40 (CAS CATO-C4X-119540)
Recommended Standards
- All-rac-alfa-Tocopheryl Acetate EP Impurity A（and Diastereoisomers） (CAS CATO-C4X-119518)
- Tocopheryl Impurity 21 (Mixture of Isomers) (CAS 37570-32-4)
- All-rac-alfa-Tocopheryl Acetate EP Impurity B (and Diastereoisomers) (CAS 1560716-42-8)
- Clomipramine EP Impurity A DiHCl (CAS CATO-C4X-12651)
- Alanyl Glutamine Impurity 19 (CAS 888939-48-8)
- (R)-3-(Benzyloxy)-2-(dibenzylamino)propan-1-ol (CAS 163493-02-5)
- 5-(bromomethyl)-3-(trifluoromethyl)isoxazole (CAS 1364677-98-4)
- (4-Hydroxybutyl)glycine (CAS 172494-27-8)
- Tetraethyl hexane-1,6-diylbis(phosphonate) (CAS 5391-92-4)
- Tau Peptide (244-274) (Repeat 1 Domain) trifluoroacetate salt (CAS 330456-24-1)
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 13829788188 / jacky.chen@cato-chem.com