Indapamide Impurity 14 CAS 604787-44-2
| CAS No. | 604787-44-2 |
| Molecular Formula | C9H9ClO5S |
| Molecular Weight | 264.68 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Owing to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system, Indapamide Impurity 14 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 264.68 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Indapamide Impurity 14 (CAS 604787-44-2) is a certified pharmaceutical impurity reference standard with the molecular formula C9H9ClO5S and a molecular weight of 264.68 g/mol.
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 | C9H9ClO5S |
| Molecular Weight | 264.68 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Indapamide Standards
- Indapamide Impurity 52 (CAS CATO-C4X-140052)
- Indapamide Impurity F (CAS 62574-66-7)
- Indapamide Impurity 17 (CAS 2494-79-3)
- Indapamide Impurity 21 (CAS 70049-77-3)
- Indapamide Impurity 11 (CAS 1856658-28-0)
- Indapamide Impurity 2 (CAS CATO-C4X-14002)
- Indapamide Impurity 51 (CAS CATO-C4X-140051)
- Indapamide Impurity 6 (CAS 2455-92-7)
Recommended Standards
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- Tetracaine Impurity 9 (CAS 55750-02-2)
- Bexarotene Impurity 4 (CAS 29641-87-0)
- Zolmitriptan Impurity 40 (CAS CATO-C4X-135140)
- 3016-97-5 AR-1K5061 n2,n2-diethyl-n-[3-(octyloxy)phenyl]glycinamide hydrochloride(1:1) (CAS 3016-97-5)
- Ethyl (4-Trifluoromethylbenzoyl)acetate (CAS 106263-53-0)
- (R)-2-((tert-butoxycarbonyl)amino)-2-(2-chlorophenyl)acetic acid (CAS 1212602-23-7)
- rel-(2R,3S)-2-Aminobutane-1,3-diol (CAS 108102-50-7)
- 2-Cyclooctylideneacetic acid (CAS 1903-30-6)
- 2-Chloro-4-(trifluoromethyl)phenol (CAS 35852-58-5)
- Tirzepatide Impurity 45 (CAS CATO-C4X-324045)
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