Terbinafine EP Impurity C CAS 187540-01-8
| CAS No. | 187540-01-8 |
| Molecular Formula | C21H25N |
| Molecular Weight | 291.43 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Terbinafine EP Impurity C 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.
CATO supplies Terbinafine EP Impurity C (CAS 187540-01-8), a pharmacopoeial impurity reference standard (molecular formula C21H25N, MW 291.43 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C21H25N, Terbinafine EP Impurity C contains a nitrogen-containing heterocyclic scaffold, a nitrile group; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 291.43 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C21H25N |
| Molecular Weight | 291.43 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| 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 |
| CAS Registry Year (est.) | 2010 |
| Nitrogen Atoms | 1 |
Related Terbinafine Standards
- Terbinafine EP Impurity B (CAS 78628-81-6)
- Terbinafine Impurity 51 (CAS CATO-C4X-133851)
- 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)
- Melitracen (Base) (CAS 5118-29-6)
- Maprotiline EP impurity E (CAS 23941-38-0)
- Venlafaxine Impurity 58 (CAS 1000377-27-4)
- Levosimendan Impurity 69 (CAS CATO-C4X-130869)
- Clofarabine Impurity 4 (CAS CATO-C4X-15934)
- Dexamethasone impurity 69 (CAS CATO-C4X-116569)
- Mometasone Furoate EP Impurity P (CAS CATO-C4X-170416)
- 4-Amino-1-(4-methoxyphenyl)-1H-pyrrole-3-carboxamide (CAS 88796-37-6)
- N-(4-Butylphenyl)-2-(pyridin-2-ylsulfanyl)acetamide (CAS 329080-05-9)
- 3-Propylidenepiperidine (CAS 942577-00-6)
- 7-Methylquinazolin-4-amine (CAS 63963-38-2)
- ethyl 2-[3-(aminomethyl)phenyl]-1,3-thiazole-4-carboxylate hydrobromide (CAS 1798732-59-8)
- Semaglutide Impurity 8 (CAS CATO-C4X-22268)
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