Terbinafine Impurity 10 CAS 126764-17-8
| CAS No. | 126764-17-8 |
| Molecular Formula | C9H13Cl |
| Molecular Weight | 156.65 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
As a process- or degradation-related impurity, Terbinafine Impurity 10 (CAS 126764-17-8, C9H13Cl) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
The molecular framework of Terbinafine Impurity 10 (C9H13Cl) is characterized by chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C9H13Cl |
| Molecular Weight | 156.65 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1993 |
| Halogen Content | Cl-containing |
Related Terbinafine Standards
- Terbinafine Impurity 9 (CAS 60845-51-4)
- Terbinafine lmpurity 28 (CAS 852616-90-1)
- Terbinafine Impurity N1 (CAS 83554-69-2)
- Terbinafine Impurity 4 (CAS 125660-64-2)
- Terbinafine Impurity 6 (CAS 36806-46-9)
- Terbinafine EP Impurity A (CAS 14489-75-9)
- Terbinafine Impurity 43 (CAS CATO-C4X-133843)
- Terbinafine Impurity 4 (Mixture of Z and E Isomers) (CAS 114311-70-5)
Recommended Standards
- 1-Chloro-3-phenyl-2-propyne 3-Chloro-1-phenyl-1-propyne 3-Phenylpropargyl chloride 3355-31-5 (CAS 3355-31-5)
- (E)-1-chloro-6,6-diMethylhept-2-en-4-yne (CAS 287471-30-1)
- (2Z)-1-Chloro-6,6-dimethyl-2-hepten-4-yne (CAS 635708-74-6)
- Chloro(methyl)(phenyl)silane (CAS 1631-82-9)
- Thiamphenicol Impurity 9 (CAS 126429-09-2)
- Tetrabenazine Impurity 68 (CAS CATO-C4X-274868)
- Azilsartan Impurity 67 (CAS CATO-C4X-109667)
- 1-(Oxolan-3-yl)-1h-pyrazol-5-amine (CAS 1344367-70-9)
- (3,5-Dichlorophenyl)(4-fluoro-3-methylphenyl)methanone (CAS 951886-90-1)
- N-(1,3-Dimethyl-1H-imidazol-2(3H)-ylidene)methanamine (CAS 683223-77-0)
- 4-(tert-Butyl)benzenesulfonic acid (CAS 1133-17-1)
- 5-(2-Chloropyridin-3-yl)-3-(m-tolyl)-1,2,4-oxadiazole (CAS 937656-41-2)
- 4-[(2-Chloro-4,6-dimethylphenoxy)methyl]-piperidine hydrochloride (CAS 1219971-94-4)
- D-[Phe6]-Semaglutide (CAS CATO-C4X-2226213)
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