Cloransulam-Methyl Impurity 9 CAS CATO-C4X-31709
| CAS No. | CATO-C4X-31709 |
| Molecular Formula | C15H12Cl2FN5O5S |
| Molecular Weight | 464.26 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Cloransulam-Methyl Impurity 9 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.
As a process- or degradation-related impurity, Cloransulam-Methyl Impurity 9 (CAS CATO-C4X-31709, C15H12Cl2FN5O5S) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
The molecular framework of Cloransulam-Methyl Impurity 9 (C15H12Cl2FN5O5S) is characterized by a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
Physical & Chemical Properties
| Molecular Formula | C15H12Cl2FN5O5S |
| Molecular Weight | 464.26 g/mol |
| Purity | ≥95% |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 5 |
| Sulfur Atoms | 1 |
Related Cloransulam Standards
- Cloransulam-Methyl Impurity 1 (CAS CATO-C4X-31701)
- Cloransulam-Methyl Impurity 10 (CAS CATO-C4X-317010)
- Cloransulam-Methyl Impurity 2 (CAS CATO-C4X-31702)
- Cloransulam-Methyl Impurity 3 (CAS CATO-C4X-31703)
- Cloransulam-Methyl Impurity 4 (CAS CATO-C4X-31704)
- Cloransulam-Methyl Impurity 5 (CAS CATO-C4X-31705)
- Cloransulam-Methyl Impurity 6 (CAS CATO-C4X-31706)
- Cloransulam-Methyl Impurity 7 (CAS CATO-C4X-31707)
Recommended Standards
- Cloransulam-Methyl Impurity 8 (CAS CATO-C4X-31708)
- ((2R,3S,4R,5R)-5-(6-Amino-9H-purin-9-yl)-3,4-dihydroxytetrahydrofuran-2-yl)methyl 4-(bromomethyl)benzoate (CAS 97143-48-1)
- (3E)-3-[2-(3,5-Dichlorophenyl)hydrazin-1-ylidene]-1-{[3-(trifluoromethyl)phenyl]methyl}-2,3-dihydro-1H-indol-2-one (CAS 303984-88-5)
- (Z)-({1-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]-1H-indol-3-yl}methylidene)[(4-chlorophenyl)methoxy]amine (CAS 338410-01-8)
- Fenofibrate EP Impurity G (CAS 217636-48-1)
- Cetilistat Impurity 2 (CAS CATO-C4X-11702)
- Brexpiprazole Impurity 41 (CAS 105684-85-3)
- Dorzolamide Impurity 17 (CAS CATO-C4X-122817)
- 4-Oxo-1-(p-tolyl)cyclohexanecarboxylic acid (CAS 887978-52-1)
- (R)-4-(4-methyl-6-oxo-1,4,5,6-tetrahydropyridazin-3-yl)benzenediazonium tetrafluoroborate (CAS 1630761-22-6)
- 1-{2S)-1-[(11bR)-2,6-Bis(trimethylsilyl)dinaphtho[2,1-d:1',2'-f][1,3,2]dioxaphosphepin-4-yloxy]propan-2-yl}-3-phenylurea (CAS 1357562-70-9)
- 5-Chloro-3-(4-chlorophenyl)benzo[c]isoxazole (CAS 724-07-2)
- Vamidothion-sulfone (CAS 70898-34-9)
- Liraglutide Impurity 20 TFA Salt (CAS CATO-C4X-199220)
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