Tizanidine Impurity 6 CAS 173532-15-5
| CAS No. | 173532-15-5 |
| Molecular Formula | C11H10ClN5OS |
| Molecular Weight | 295.75 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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 supplies Tizanidine Impurity 6 (CAS 173532-15-5), a pharmacopoeial impurity reference standard (molecular formula C11H10ClN5OS, MW 295.75 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Tizanidine Impurity 6 (C11H10ClN5OS) contains a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 295.75 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
As a certified reference material (CRM), Tizanidine Impurity 6 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 | C11H10ClN5OS |
| Molecular Weight | 295.75 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2006 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 5 |
| Sulfur Atoms | 1 |
Related Tizanidine Standards
- Tizanidine impurity 21 (CAS CATO-C4X-144521)
- Tizanidine Impurity 40 (CAS CATO-C4X-144540)
- Tizanidine Impurity 59 (CAS CATO-C4X-144559)
- Tizanidine Impurity 61 (CAS CATO-C4X-144561)
- Tizanidine impurity 027 (CAS 5391-42-4)
- Tizanidine impurity 30 (CAS CATO-C4X-144530)
- Tizanidine impurity 36 (CAS CATO-C4X-144536)
- Tizanidine Nitroso Impurity 13 (CAS CATO-C4X-144513)
Recommended Standards
- 4-(Cyclopropylsulfamoyl)benzene-1-sulfonyl chloride (CAS 1000932-54-6)
- 1-(2-Chloro-4-fluoro-benzyl)-4-isothiocyanato-3,5-dimethyl-1h-pyrazole (CAS 1004193-38-7)
- Thiamethoxam D4 (oxadiazine D4) (CAS 1331642-98-8)
- 1-(2-Chloro-6-fluorobenzyl)-4-isothiocyanato-3,5-dimethyl-1h-pyrazole (CAS 1006333-06-7)
- Orlistat Impurity 39 (CAS CATO-C4X-149939)
- Nicorandil Impurity 13 (CAS 896133-95-2)
- Cefpirome Impurity N1 (CAS 87314-56-5)
- 7-Bromo-1H-pyrido[2,3-b][1,4]thiazin-2(3H)-one (CAS 438622-20-9)
- 3-Oxabicyclo[3.1.0]hexane-6-carbonitrile (CAS 1859482-43-1)
- Benzyl 3,5-dimethyl-1H-pyrazole-1-carbodithioate (CAS 131557-87-4)
- 4-Iodo-N-{4-methoxy-8-oxatricyclo[7.4.0.0^{2,7}]trideca-1(9),2(7),3,5,10,12-hexaen-5-yl}benzene-1-sulfonamide (CAS 861211-69-0)
- Cinnamoylcocaine (CAS 521-67-5)
- Methyl 4-(4-chloro-2-methoxyphenyl)-3-fluorobenzoate (CAS 1820684-86-3)
- Tirzepatide Impurity 18 (CAS CATO-C4X-324018)
Why CATO?
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- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com