Terbinafine Impurity 51 CAS CATO-C4X-133851
| CAS No. | CATO-C4X-133851 |
| Molecular Formula | C21H25N |
| Molecular Weight | 291.43 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, Terbinafine Impurity 51 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 291.43 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
CATO supplies Terbinafine Impurity 51 (CAS CATO-C4X-133851), a pharmacopoeial impurity reference standard (molecular formula C21H25N, MW 291.43 g/mol) used for the identification and quantification of trace impurities in APIs.
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 Terbinafine Impurity 51 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 | C21H25N |
| Molecular Weight | 291.43 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
Related Terbinafine Standards
- Terbinafine EP Impurity B (CAS 78628-81-6)
- Terbinafine EP Impurity C (CAS 187540-01-8)
- Terbinafine Impurity 52 (CAS 2416665-26-2)
- Terbinafine (CAS 91161-71-6)
- Terbinafine lmpurity 36 (CAS CATO-C4X-133836)
- Terbinafine EP Impurity D (CAS 151222-50-3)
- Terbinafine Impurity 31 (CAS CATO-C4X-133831)
- Terbinafine impurity 34 (CAS CATO-C4X-133834)
Recommended Standards
- Melitracen Impurity 18 (CAS CATO-C4X-120218)
- Venlafaxine Impurity 58 (CAS 1000377-27-4)
- Melitracen (Base) (CAS 5118-29-6)
- Difenidol Impurity 12 (CAS CATO-C4X-222712)
- Regadenoson Impurity 21 (CAS 146-77-0)
- Bromfenac Impurity 65 (CAS CATO-C4X-200265)
- Minocycline EP Impurity B HCl (CAS 6625-20-3)
- 4-(2-Methoxyethyl)-3-methylisoxazol-5-amine (CAS 89851-82-1)
- Ethyl 2-(2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indol-1-yl)acetate hydrochloride (CAS 77276-91-6)
- tert-butyl (4-((1-aminonaphthalen-2-yl)amino)phenyl)carbamate (CAS 1356863-57-4)
- 4,8-Dichlorobenzofuro[3,2-d]pyrimidine (CAS 294874-71-8)
- Ethyl 3-(((((4-fluorobenzyl)oxy)amino)methylene)amino)-4-methoxythieno[2,3-b]pyridine-2-carboxylate (CAS 341966-70-9)
- N-(2-ethyl-6-methylphenyl)-2-((4-phenyl-5-(pyridin-4-yl)-4H-1,2,4-triazol-3-yl)thio)acetamide (CAS 332376-40-6)
- Acetyl Tripeptide-1 (CAS 350595-76-5)
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