Tizanidine impurity 29 CAS CATO-C4X-144529
| CAS No. | CATO-C4X-144529 |
| Molecular Formula | C6H2ClN3O2S |
| Molecular Weight | 215.62 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Tizanidine impurity 29 (CAS CATO-C4X-144529), a pharmacopoeial impurity reference standard (molecular formula C6H2ClN3O2S, MW 215.62 g/mol) used for the identification and quantification of trace impurities in APIs.
Owing to an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system, Tizanidine impurity 29 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 215.62 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
CATO manufactures Tizanidine impurity 29 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.
Physical & Chemical Properties
| Molecular Formula | C6H2ClN3O2S |
| Molecular Weight | 215.62 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, 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; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| 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 EP Impurity A (CAS 51322-69-1)
- Tizanidine impurity 20 (CAS CATO-C4X-144520)
- Tizanidine impurity 26 (CAS CATO-C4X-144526)
- Tizanidine Hydrochloride EP Impurity G (CAS 51322-80-6)
- Tizanidine Impurity 65 (CAS 67357-54-4)
- Tizanidine Impurity 66 (CAS 67357-53-3)
- Tizanidine Impurity 67 (CAS 67357-56-6)
- Tizanidine Guanidine Impurity (CAS 125292-37-7)
Recommended Standards
- 5-Chloro-6-nitrobenzo[c][1,2,5]thiadiazole (CAS 2207-33-2)
- Ethyl 3-chloro-6-methoxypicolinate (CAS 1001735-31-4)
- 5-Chloro-4-nitro-2,1,3-benzothiadiazole (CAS 2274-89-7)
- 3-Chloro-6-(propan-2-yloxy)pyridine-2-carboxylic acid (CAS 1021044-11-0)
- Prednisolone Impurity 41 (CAS CATO-C4X-173741)
- Sofosbuvir Impurity 30 (CAS CATO-C4X-105230)
- Oseltamivir Impurity 59 (CAS 722-97-4)
- 2-(4-Trifluoromethylphenyl)piperazine (CAS 185110-19-4)
- 4-Methoxy-1-naphthalenepropanoic Acid Ethyl Ester (CAS 861354-99-6)
- N-{[3-(difluoromethoxy)phenyl]methyl}-2-(1H-1,2,4-triazol-1-yl)acetamide (CAS 866051-33-4)
- Methyl 3-((tert-Butyldimethylsilyl)oxy)-2,2-dimethylpropanoate (CAS 361547-56-0)
- 4-Methoxy-3-((4-methyl-2-nitrophenoxy)methyl)benzaldehyde (CAS 329222-84-6)
- 6-Chloro-N1-isobutylbenzene-1,2-diamine (CAS 1040042-87-2)
- Acetyl tetrapeptide-3 (CAS 827306-88-7)
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