Indapamide Impurity 19 CAS 7719-09-7
| CAS No. | 7719-09-7 |
| Molecular Formula | Cl2OS |
| Molecular Weight | 118.97 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Indapamide Impurity 19 (CAS 7719-09-7) is a certified pharmaceutical impurity reference standard with the molecular formula Cl2OS and a molecular weight of 118.97 g/mol.
Indapamide Impurity 19 (Cl2OS) contains sulfur-containing functionality, chlorine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
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 | Cl2OS |
| Molecular Weight | 118.97 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, keep tightly closed to prevent evaporation |
| Solubility (reference) | Freely soluble in water |
| Stability | Stable under recommended storage conditions |
| CAS Registry Year (est.) | 1959 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Indapamide Standards
- Indapamide Impurity 22 (CAS 6872-06-6)
- Indapamide Impurity 32 (CAS 22160-09-4)
- Indapamide Impurity 33 (CAS 22160-13-0)
- Indapamide Impurity 20 (CAS 53406-41-0)
- Indapamide EP Impurity C (CAS 31529-46-1)
- Indapamide EP Impurity C (CAS 77083-51-3)
- Indapamide Impurity 12 (CAS CATO-C4X-140012)
- Indapamide Impurity 43 (CAS CATO-C4X-140043)
Recommended Standards
- 3-Bromopropyne (CAS 106-96-7)
- (±)-1,2-Dichloropropane-d6 (CAS 93952-08-0)
- 1-Bromo Allene (CAS 10024-18-7)
- Calcium selenide (CAS 1305-84-6)
- N2-Nitroso Relebactam Impurity 48 (CAS CATO-C4X-214448)
- Ondansetron Impurity 8 (CAS 99614-13-8)
- Warfarin impurity 11 (CAS CATO-C4X-17811)
- 5-(N,N-Hexamethylene)-amiloride (CAS 1428-95-1)
- Imazalil Sulfate (CAS 58594-72-2)
- 3,3,5-Trimethylindoline (CAS 222721-46-2)
- Methyl 1-((2,4-dimethylphenoxy)methyl)-1h-pyrazole-3-carboxylate (CAS 1001500-23-7)
- 2,4-Diamino-6-chloropyrimidine-5-carbaldehyde (CAS 18740-20-0)
- Leuprorelin impurity 34 TFA (CAS CATO-C4X-182234)
- 98035-79-1 Small cardioactive peptide A L-Methioninamide, L-alanyl-L-arginyl-L-prolylglycyl-L-tyrosyl-L-leucyl-L-alanyl-L-phenylalanyl-L-prolyl-L-arginyl- SCPA (CAS 98035-79-1)
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