Tizanidine CAS 51322-75-9
| CAS No. | 51322-75-9 |
| Molecular Formula | C9H8ClN5S |
| Molecular Weight | 253.71 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Tizanidine 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.
Tizanidine (CAS 51322-75-9), molecular formula C9H8ClN5S and molecular weight 253.71 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality, chlorine substitution, Tizanidine is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 253.71 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
Physical & Chemical Properties
| Molecular Formula | C9H8ClN5S |
| Molecular Weight | 253.71 g/mol |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1971 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 5 |
| Sulfur Atoms | 1 |
Related Tizanidine Standards
- Tizanidine impurity 25 (CAS CATO-C4X-144525)
- Tizanidine impurity 31 (CAS CATO-C4X-144531)
- Tizanidine Impurity 41 (CAS CATO-C4X-144541)
- Tizanidine Impurity 42 (CAS CATO-C4X-144542)
- Tizanidine impurity 28 (CAS CATO-C4X-144528)
- Tizanidine-D4 (CAS 1188331-19-2)
- Tizanidine EP Impurity D (CAS 560120-68-5)
- Tizanidine Impurity 51 (CAS CATO-C4X-144551)
Recommended Standards
- N'-(6-Chloropyridin-2-yl)thiophene-2-carbohydrazide (CAS 478064-09-4)
- N-(4-Chlorophenyl)-4-methyl-1,2,3-thiadiazole-5-carboxamide (CAS 69635-83-2)
- N-(2-Chlorophenyl)-4-methyl-1,2,3-thiadiazole-5-carboxamide (CAS 69635-78-5)
- 1-((4-Chlorophenyl)amino)cyclohexane-1-carboxylic acid (CAS 100380-25-4)
- 1-Bromo-4-butoxy-2-fluorobenzene (CAS 155854-29-8)
- 3h,4h,6h,7h-Pyrano[3,4-d]imidazole-2-carbaldehyde (CAS 1341086-36-9)
- N-(5-Amino-1-methyl-1H-pyrazol-4-yl)formamide (CAS 689294-31-3)
- 4-Fluoro-N-({5H,6H,7H,8H-[1,2,4]triazolo[4,3-a]pyridin-3-yl}methyl)benzamide (CAS 1358712-01-2)
- Rifamycin Impurity 15 (CAS CATO-C4X-200415)
- 1-(Isochroman-1-yl)propan-2-one (CAS 82584-14-3)
- Dibrompropamidine for system suitability CRS (CAS 614-87-9)
- (5S,8S,9R,10S,13S,14S)-9-Hydroxy-10,13-dimethyldodecahydro-1H-cyclopenta[a]phenanthrene-3,17(2H,4H)-dione (CAS 25846-32-6)
- O-(1-(4-Methoxyphenyl)ethyl)hydroxylamine (CAS 1082600-75-6)
- D-[Thr]5-Semaglutide (CAS CATO-C4X-2226245)
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