Tizanidine impurity 26 CAS CATO-C4X-144526
| CAS No. | CATO-C4X-144526 |
| Molecular Formula | C9H11ClN4 |
| Molecular Weight | 210.66 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.
Tizanidine impurity 26 (CAS CATO-C4X-144526) is a certified pharmaceutical impurity reference standard with the molecular formula C9H11ClN4 and a molecular weight of 210.66 g/mol.
Based on its molecular formula C9H11ClN4, Tizanidine impurity 26 contains a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 210.66 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
As a certified reference material (CRM), Tizanidine impurity 26 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 | C9H11ClN4 |
| Molecular Weight | 210.66 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
Related Tizanidine Standards
- Tizanidine impurity 20 (CAS CATO-C4X-144520)
- Tizanidine Hydrochloride EP Impurity G (CAS 51322-80-6)
- Tizanidine impurity 29 (CAS CATO-C4X-144529)
- Tizanidine EP Impurity A (CAS 51322-69-1)
- Tizanidine Impurity 56 (CAS CATO-C4X-144556)
- Tizanidine Impurity 55 (CAS CATO-C4X-144555)
- Tizanidine impurity 35 (CAS 32863-29-9)
- Tizanidine Impurity 65 (CAS 67357-54-4)
Recommended Standards
- Desnitroimidacloprid (CAS 115970-17-7)
- Domperidone Impurity 23 (CAS 62780-89-6)
- (R)-(+)-1-Chloro-3-(4-fluorophenoxy)-2-propanol 307532-04-3 ACMC-20apkg (CAS 307532-04-3)
- Milnacipran impurity 31 (CAS CATO-C4X-103331)
- Nintedanib Impurity 172 (CAS CATO-C4X-1814172)
- Calcitriol impurity 53 (CAS CATO-C4X-151053)
- Menaquinone impurity 37 (CAS CATO-C4X-207637)
- 5,6-Bis(benzyloxy)-4,7-dimethyl-1H-indole (CAS 97073-53-5)
- 5-Nitro-2-phenoxybenzonitrile (CAS 63707-35-7)
- 2,4,6-Tribromo-3-nitroaniline (CAS 62406-72-8)
- 4-Chloro-2-methylpyrimidine dihydrochloride (CAS 1159824-34-6)
- 2-(2-Chlorophenyl)-8-ethylquinoline-4-carboxylic acid (CAS 667435-74-7)
- Ethyl 5-amino-1-(3-nitrophenyl)pyrazole-4-carboxylate (CAS 16459-34-0)
- Semaglutide (CAS 910463-68-2)
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