Terbinafine Impurity 44 CAS CATO-C4X-133844
| CAS No. | CATO-C4X-133844 |
| Molecular Formula | C6H9Cl |
| Molecular Weight | 116.59 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Terbinafine Impurity 44 (C6H9Cl) contains chlorine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Terbinafine Impurity 44 (CAS CATO-C4X-133844) is a certified pharmaceutical impurity reference standard with the molecular formula C6H9Cl and a molecular weight of 116.59 g/mol.
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 certified reference material (CRM), Terbinafine Impurity 44 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C6H9Cl |
| Molecular Weight | 116.59 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | 2.0 |
| Halogen Content | Cl-containing |
Related Terbinafine Standards
- Terbinafine Impurity 10 (CAS 27843-27-2)
- Terbinafine Impurity 45 (CAS CATO-C4X-133845)
- Terbinafine Impurity 14 (CAS CATO-C4X-133814)
- Terbinafine lmpurity 35 (CAS 138139-82-9)
- Terbinafine Impurity 4 (Mixture of Z and E Isomers) (CAS 114311-70-5)
- Terbinafine Impurity 15 (CAS 173200-56-1)
- Terbinafine Impurity 43 (CAS CATO-C4X-133843)
- Terbinafine Impurity 6 (CAS 36806-46-9)
Recommended Standards
- 4-Chlorocyclohexene (CAS 930-65-4)
- 2-Butylmagnesium Chloride (CAS 15366-08-2)
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- 5674-02-2 Isobutylmagnesium chloride, 2M in THF MFCD00000471 Chloro(2-methylpropyl)magnesium (CAS 5674-02-2)
- Ubrogepant Impurity 30 (CAS CATO-C4X-340230)
- Rezvilutamide Impurity 1 (CAS CATO-C4X-33431)
- Lenalidomide Impurity 9 (CAS 827026-45-9)
- 2-(2,3-Dimethylphenoxy)butanoyl chloride (CAS 833460-84-7)
- Sertraline-13C-15N-d3 (CAS CATO-C4X-13449)
- 2-Amino-5-octylbenzaldehyde (CAS 1801190-28-2)
- 2-amino-1,2-diphenylethan-1-one hydrochloride (CAS 885-75-6)
- 1-Bromo-2-chloro-3-methoxy-5-methylbenzene (CAS 1208075-75-5)
- 73568-44-2 6-Chloro-2-oxo-1,2-dihydroquinoline-3-carbaldehyde DTXSID90501117 (CAS 73568-44-2)
- Bradykinin-Like Neuropeptide (Aplysia californica) (H-1654.0001) (CAS 165174-60-7)
Why CATO?
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