Tizanidine Impurity 57 CAS CATO-C4X-144557
| CAS No. | CATO-C4X-144557 |
| Molecular Formula | C12H7ClN6S2 |
| Molecular Weight | 334.81 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Tizanidine Impurity 57.
CATO supplies Tizanidine Impurity 57 (CAS CATO-C4X-144557), a pharmacopoeial impurity reference standard (molecular formula C12H7ClN6S2, MW 334.81 g/mol) used for the identification and quantification of trace impurities in APIs.
Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality, chlorine substitution, Tizanidine Impurity 57 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 334.81 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.
As a certified reference material (CRM), Tizanidine Impurity 57 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 | C12H7ClN6S2 |
| Molecular Weight | 334.81 g/mol |
| Purity | 95% |
| Storage | Store at 2-8°C, protect from light |
| 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 6 |
| Sulfur Atoms | 2 |
Related Tizanidine Standards
- Tizanidine impurity 23 (CAS CATO-C4X-144523)
- Tizanidine Impurity 62 (CAS CATO-C4X-144562)
- Tizanidine Impurity 60 (CAS CATO-C4X-144560)
- Tizanidine RC 1 (CAS 1391053-77-2)
- Tizanidine Nitroso Impurity 15 (CAS CATO-C4X-144515)
- Tizanidine impurity 27 (CAS CATO-C4X-144527)
- Tizanidine Nitroso Impurity 14 (CAS CATO-C4X-144514)
- Tizanidine Impurity 58 (CAS CATO-C4X-144558)
Recommended Standards
- tert-Butyl 4-(4-chloro-7H-pyrrolo[2,3-d]pyrimidin-6-yl)-3,6-dihydropyridine-1(2H)-carboxylate (CAS 876343-11-2)
- 3-(3-(4-Chloro-3-methyl-1h-pyrazol-1-yl)propyl)-2-thioxo-2,3-dihydroquinazolin-4(1h)-one (CAS 1005563-76-7)
- tert-Butyl (5-(benzyloxy)-2-chloropyridin-4-yl)carbamate (CAS 2796280-04-9)
- 6-(4-Chlorobenzyl)-1-ethyl-3-methyl-5-thioxo-1,4,5,6-tetrahydro-7H-pyrazolo[4,3-d]pyrimidin-7-one (CAS 1031606-41-3)
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- Amrinone USP RC B (CAS CATO-C4X-109144)
- 3-Bromo-5-nitropyridine (CAS 15862-30-3)
- 4-(Propan-2-ylidene)tetrahydro-2H-pyran (CAS 26170-24-1)
- 1-Cyclopentylpiperidine-3-carboxylic acidhydrochloride (CAS 1185293-17-7)
- Fmoc-β,β-diphenyl-Ala-OH (CAS 201484-50-6)
- L-Glutamic acid, N-[(9H-fluoren-9-ylmethoxy)carbonyl]-, 1-[2-carboxy-2-[[(1,1-dimethylethoxy)carbonyl]amino]ethyl] 5-(1,1-dimethylethyl) ester (CAS 944283-18-5)
- 5-Amino-4-cyclopropyl-4h-1,2,4-triazole-3-thiol (CAS 1000933-23-2)
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Why CATO?
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