Chlortalidone EP Impurity C CAS 92874-73-2
| CAS No. | 92874-73-2 |
| Molecular Formula | C16H14ClNO5S |
| Molecular Weight | 367.80 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Chlortalidone EP Impurity C (C16H14ClNO5S) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. 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).
Chlortalidone EP Impurity C (CAS 92874-73-2) is a certified pharmaceutical impurity reference standard with the molecular formula C16H14ClNO5S and a molecular weight of 367.80 g/mol.
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 manufactures Chlortalidone EP Impurity C under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C16H14ClNO5S |
| Molecular Weight | 367.80 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1983 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Chlortalidone Standards
- Chlortalidone EP Impurity D (CAS 1369995-36-7)
- Chlortalidone Sulfochloro Impurity (CAS 68592-12-1)
- Chlortalidone Impurity 6 (CAS 68592-11-0)
- Chlortalidone EP Impurity I (CAS 2514668-27-8)
- Chlortalidone EP Impurity A (CAS 345930-32-7)
- Chlortalidone EP Impurity B (CAS 5270-74-6)
- Chlortalidone Impurity 4 (CAS 118-04-7)
- Chlortalidone Impurity 8 (CAS 2224-77-3)
Recommended Standards
- N-(4-chloro-3-(trifluoromethyl)phenyl)-2-((5-methyl-1,3,4-thiadiazol-2-yl)thio)acetamide (CAS 306731-90-8)
- Lomefloxacin Impurity 6 (CAS CATO-C4X-20736)
- N-(2-chloro-5-(trifluoromethyl)phenyl)-2-((5-methyl-1,3,4-thiadiazol-2-yl)thio)acetamide (CAS 298215-04-0)
- Dotinurad Impurity 167 (CAS CATO-C4X-2494167)
- Etodolac EP Impurity A (CAS 41339-67-7)
- Ibuprofen Impurity 85 (CAS CATO-C4X-108285)
- Cabotegravir Impurity 2 (CAS CATO-C4X-28762)
- Sodium 6-methoxynaphthalene-2-sulfonate (CAS 149353-39-9)
- 2-Chloro-4-(trifluoromethyl)pyridin-1-ium-1-olate (CAS 164464-58-8)
- 2-(2-(((3-(Benzyloxy)-3-oxopropyl)amino)methyl)pyrrolidin-1-yl)acetic acid (CAS 1353972-23-2)
- 2-(5-Fluoro-1,3-benzoxazol-2-yl)ethanaminehydrochloride (CAS 1158256-53-1)
- 1-(4-Chlorophenyl)-2,2,2-trifluoroethanol (CAS 446-66-2)
- Cefprozil Impurity N1(Z-Cefprozil) (CAS 121412-77-9)
- Anti-Inflammatory Peptide 2 (CAS 118850-72-9)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com