Tizanidine EP Impurity C CAS 1147548-83-1
| CAS No. | 1147548-83-1 |
| Molecular Formula | C16H14Cl2N10S2 |
| Molecular Weight | 481.39 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C16H14Cl2N10S2, Tizanidine EP Impurity C contains a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 481.39 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO supplies Tizanidine EP Impurity C (CAS 1147548-83-1), a pharmacopoeial impurity reference standard (molecular formula C16H14Cl2N10S2, MW 481.39 g/mol) used for the identification and quantification of trace impurities in APIs.
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
As a certified reference material (CRM), Tizanidine EP Impurity C 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 | C16H14Cl2N10S2 |
| Molecular Weight | 481.39 g/mol |
| Purity | >95% |
| Storage | Store at room temperature, 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 10 |
| Sulfur Atoms | 2 |
Related Tizanidine Standards
- Tizanidine EP Impurity F (CAS 1147548-85-3)
- Tizanidine impurity 27 (CAS CATO-C4X-144527)
- Tizanidine RC 1 (CAS 1391053-77-2)
- Tizanidine impurity 23 (CAS CATO-C4X-144523)
- Tizanidine Impurity 62 (CAS CATO-C4X-144562)
- Tizanidine Impurity 57 (CAS CATO-C4X-144557)
- Tizanidine Impurity 60 (CAS CATO-C4X-144560)
- Tizanidine Nitroso Impurity 15 (CAS CATO-C4X-144515)
Recommended Standards
- N,N-Bis(4-methoxyphenyl)-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)naphthalen-2-amine (CAS 2225806-07-3)
- Vandetanib-d6 (CAS 1174683-49-8)
- 2-((2,6-Dichlorobenzyl)sulfonyl)-4,5-diphenyl-1-(prop-2-yn-1-yl)-1H-imidazole (CAS 339277-34-8)
- 1-Methyl-3-[[5-[(2s)-2-methyl-4-(oxetan-3-yl)piperazin-1-yl]-2-pyridyl]amino]-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-2-one (CAS 1433849-83-2)
- 6-beta-Exemestane EP Impurity B (CAS 121021-51-0)
- Ioversol Impurity 1 (CAS 134768-85-7)
- Lacosamide Impurity 9 (CAS 1318777-56-8)
- 24365-65-9 3,4-Dihydro-3-methyl-2(1H)-quinazolinone 3-methyl-3,4-dihydroquinazolin-2(1H)-one (CAS 24365-65-9)
- Diclofenac Acyl-beta-D-glucuronide (CAS 64118-81-6)
- 2-(4-methylpyrimidin-2-yl)ethan-1-ol (CAS 1240725-60-3)
- Dapoxetine Impurity 49 (CAS 54108-51-9)
- Cyclopenta[d]imidazole-2,4(1H,3H)-dithione (CAS 853944-78-2)
- (S)-(+)-2-(tert-Butyl)-3-methyl-4-imidazolidinone trifluoroacetic acid (S)-(+)-2-(tert-Butyl)-3-methyl-4-oxoimidazolidinium trifluoroacetate (S)-2-(tert-Butyl)-3-methyl-4-imidazolidinone trifluoroacetic acid salt 900503-70-0 (CAS 900503-70-0)
- Semaglutide impurity 286 (CAS CATO-C4X-2226286)
Why CATO?
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