Tizanidine Impurity 55 CAS CATO-C4X-144555
| CAS No. | CATO-C4X-144555 |
| Molecular Formula | C6H2ClN3OS |
| Molecular Weight | 199.62 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Tizanidine Impurity 55 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.
As a process- or degradation-related impurity, Tizanidine Impurity 55 (CAS CATO-C4X-144555, C6H2ClN3OS) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
The molecular framework of Tizanidine Impurity 55 (C6H2ClN3OS) is characterized by an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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 | C6H2ClN3OS |
| Molecular Weight | 199.62 g/mol |
| Purity | 95% |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Tizanidine Standards
- Tizanidine Impurity 56 (CAS CATO-C4X-144556)
- Tizanidine impurity 35 (CAS 32863-29-9)
- Tizanidine Impurity 44 (CAS 13907-88-5)
- Tizanidine Hydrochloride EP Impurity G (CAS 51322-80-6)
- Tizanidine impurity 20 (CAS CATO-C4X-144520)
- Tizanidine impurity 26 (CAS CATO-C4X-144526)
- Tizanidine Unknown Impurity (CAS 5391-53-7)
- Tizanidine impurity 34 (CAS CATO-C4X-144534)
Recommended Standards
- 4-Chloro-2-fluoro-5-(prop-2-yn-1-yloxy)aniline (CAS 84478-65-9)
- Peficitinib Impurity 15-d3,15N (CAS CATO-C4X-280715)
- 2-(4-chloro-2-fluoro-5-methoxyphenyl)acetonitrile (CAS 374780-17-3)
- (S)-3-amino-2-(4-chlorophenyl)propanoic acid (CAS 1001227-79-7)
- Camphor Impurity 10 (CAS CATO-C4X-211410)
- Promethazine impurity 60 (CAS CATO-C4X-141860)
- Citalopram Impurity 38 (CAS 103146-26-5)
- 5-(3-Fluorophenyl)oxazole (CAS 243455-58-5)
- 5-Fluoro-2-(trifluoromethyl)aniline (CAS 827-20-3)
- 7H-Pyrrolo[2,3-d]pyrimidine-4-carbonitrile (CAS 1005206-16-5)
- 1-(3-Cyano-6,7-dimethoxyquinolin-4-yl)piperidine-4-carboxylic acid (CAS 1351398-61-2)
- tert-Butyl (4-(2-aminoacetamido)cyclohexyl)carbamate (CAS 1353960-37-8)
- Sitafloxacin Impurity 21 (CAS 182075-96-3)
- Semaglutide impurity 286 (CAS CATO-C4X-2226286)
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