Butylphthalide Impurity 26 CAS 20871-40-3
| CAS No. | 20871-40-3 |
| Molecular Formula | C12H13NO |
| Molecular Weight | 187.24 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Butylphthalide Impurity 26.
As a process- or degradation-related impurity, Butylphthalide Impurity 26 (CAS 20871-40-3, C12H13NO) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Butylphthalide Impurity 26 (C12H13NO) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility; 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).
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
CATO manufactures Butylphthalide 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.
Physical & Chemical Properties
| Molecular Formula | C12H13NO |
| Molecular Weight | 187.24 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
| Nitrogen Atoms | 1 |
Related Butylphthalide Standards
- Butylphthalide Impurity 8 (CAS 1505458-11-6)
- Butylphthalide Impurity N7 (CAS 76681-73-7)
- Butylphthalide Impurity 2 (CAS 551-08-6)
- Butylphthalide Impurity 22 (CAS 14570-43-5)
- Butylphthalide Impurity 75 (CAS 72917-31-8)
- Butylphthalide Impurity 79 (CAS 56014-87-0)
- Butylphthalide Impurity 7 (CAS 122654-56-2)
- Butylphthalide Impurity 41 (CAS 3413-15-8)
Recommended Standards
- Dexpanthenol impurity 35 (CAS CATO-C4X-161335)
- Loratadine Impurity 95 (CAS CATO-C4X-142695)
- Bepotastine Impurity 11 (CAS 1039957-36-2)
- Pregabalin impurity 96 (CAS CATO-C4X-131296)
- Relebactam Impurity 12 (CAS 1190363-52-0)
- Ethambutol Impurity 7(Mixture of Diastereomers) (CAS 498-17-9)
- Abemaciclib Impurity N7 (CAS 1231930-37-2)
- Methyl 2-phenylindolizine-6-carboxylate (CAS 169210-31-5)
- 2-Cyclohexyl-N-methylethanamine (CAS 62141-38-2)
- 4,4-Difluoro-1-methylcyclohexane-1-carboxylic acid (CAS 1389313-41-0)
- Ethyl 2-(((4-nitrophenoxy)carbonyl)amino)-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate (CAS 1820016-84-9)
- Voglibose Impurity 21 (CAS CATO-C4X-178021)
- 2-{4-[2-(3,4-dimethylpyrrolidin-1-yl)ethoxy]phenyl}ethan-1-amine dihydrochloride (CAS 1432681-65-6)
- Tirzepatide Impurity 38 (CAS CATO-C4X-324038)
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