Cloransulam-Methyl Impurity 4 CAS CATO-C4X-31704
| CAS No. | CATO-C4X-31704 |
| Molecular Formula | C15H12Cl2FN5O5S |
| Molecular Weight | 464.26 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 Cloransulam-Methyl Impurity 4.
Cloransulam-Methyl Impurity 4 (CAS CATO-C4X-31704) is a certified pharmaceutical impurity reference standard with the molecular formula C15H12Cl2FN5O5S and a molecular weight of 464.26 g/mol.
Cloransulam-Methyl Impurity 4 (C15H12Cl2FN5O5S) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
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 5 (CAS CATO-C4X-31705)
- Cloransulam-Methyl Impurity 6 (CAS CATO-C4X-31706)
- Cloransulam-Methyl Impurity 7 (CAS CATO-C4X-31707)
- Cloransulam-Methyl Impurity 8 (CAS CATO-C4X-31708)
Recommended Standards
- 5-Chloro-3-(((4-chlorophenyl)thio)methyl)-4-(((2,6-dichlorophenyl)thio)methyl)-1-methyl-1H-pyrazole (CAS 318234-30-9)
- Cloransulam-Methyl Impurity 9 (CAS CATO-C4X-31709)
- 5-Chloro-3-(((4-chlorophenyl)thio)methyl)-4-(((2,4-dichlorophenyl)thio)methyl)-1-methyl-1H-pyrazole (CAS 318234-36-5)
- ((2R,3S,4R,5R)-5-(6-Amino-9H-purin-9-yl)-3,4-dihydroxytetrahydrofuran-2-yl)methyl 4-(bromomethyl)benzoate (CAS 97143-48-1)
- Vitamin A Impurity 31 (CAS CATO-C4X-218731)
- Mianserin Impurity 91 (CAS 1192015-20-5)
- itagliptin Impurity 120 (CAS 2428591-91-5)
- H-trans-DL-β-pro-4-(4-Fluorophenyl)-OH·HCl (CAS 1049727-56-1)
- 6-Chloro-N-(4-chlorobenzyl)-2H-chromene-3-carboxamide (CAS 338759-61-8)
- 4-(Bromomethyl)-6-chloro-3,4'-bipyridine (CAS 1227515-73-2)
- (6-(3-Iodophenyl)pyridin-3-yl)methanol (CAS 887974-43-8)
- tert-Butyl N-(4-bromo-3-fluorophenyl)-N-methylcarbamate (CAS 1881330-84-2)
- 4-Bromo-2-methoxy-1-(2-methoxyethoxy)benzene (CAS 1092563-27-3)
- Sperm Activating Peptide, Sea Urchin (CAS 140653-27-6)
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