Hydrochlorothiazide Impurity 7 CAS CATO-C4X-11777
| CAS No. | CATO-C4X-11777 |
| Molecular Formula | C7H9N3O4S2 |
| Molecular Weight | 263.29 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Hydrochlorothiazide Impurity 7 (C7H9N3O4S2) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a process- or degradation-related impurity, Hydrochlorothiazide Impurity 7 (CAS CATO-C4X-11777, C7H9N3O4S2) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
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.
CATO manufactures Hydrochlorothiazide Impurity 7 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 | C7H9N3O4S2 |
| Molecular Weight | 263.29 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 2 |
Related Hydrochlorothiazide Standards
- Hydrochlorothiazide Impurity 6 (CAS 23141-82-4)
- Hydrochlorothiazide Impurity 19 (CAS 79271-56-0)
- Hydrochlorothiazide Impurity 9 (CAS 364-96-5)
- Hydrochlorothiazide Impurity 15 (CAS 23141-75-5)
- Hydrochlorothiazide Impurity 19 (CAS 85119-88-6)
- Hydrochlorothiazide Impurity 20 (CAS 82205-98-9)
- Hydrochlorothiazide EP Impurity B (CAS 121-30-2)
- Hydrochlorothiazide impurity 44 (CAS CATO-C4X-117744)
Recommended Standards
- Bisoprolol EP Impurity T (CAS 1173203-26-3)
- Salbutamol Impurity 97 (CAS 53942-75-9)
- Miglitol Impurity 19 (CAS 78614-47-8)
- Aripiprazole impurity 80 (CAS CATO-C4X-100880)
- Medroxyprogesterone Impurity 14 (CAS CATO-C4X-145714)
- Chlorphenamine Impurity 27 (CAS 339114-86-2)
- Febuxostat Impurity 38 (CAS 528607-60-5)
- tert-butyl 3-(aminomethyl)-3-cyanoazetidine-1-carboxylate (CAS 1374653-62-9)
- D-(+)-Fucose (CAS 3615-37-0)
- Methyl 3-(tert-butyl)isoxazole-4-carboxylate (CAS 883032-43-7)
- (4-Isocyanatobutyl)benzene (CAS 77725-08-7)
- 3-Ethyl-6-fluoro-1h-indole (CAS 1360940-05-1)
- 5-Chlorobenzo[b]phosphindole (CAS 33300-85-5)
- Peptide Impurity 26 (CAS 1350456-66-4)
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