Indapamide Impurity 2 CAS CATO-C4X-14002
| CAS No. | CATO-C4X-14002 |
| Molecular Formula | C10H11ClO5S |
| Molecular Weight | 278.71 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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 supplies Indapamide Impurity 2 (CAS CATO-C4X-14002), a pharmacopoeial impurity reference standard (molecular formula C10H11ClO5S, MW 278.71 g/mol) used for the identification and quantification of trace impurities in APIs.
Indapamide Impurity 2 (C10H11ClO5S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. 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).
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 | C10H11ClO5S |
| Molecular Weight | 278.71 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 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Indapamide Standards
- Indapamide Impurity F (CAS 62574-66-7)
- Indapamide Impurity 52 (CAS CATO-C4X-140052)
- Indapamide Impurity 51 (CAS CATO-C4X-140051)
- Indapamide Impurity 14 (CAS 604787-44-2)
- Indapamide Impurity 17 (CAS 2494-79-3)
- Indapamide Impurity 21 (CAS 70049-77-3)
- Indapamide Impurity 11 (CAS 1856658-28-0)
- Indapamide Impurity 6 (CAS 2455-92-7)
Recommended Standards
- Sildenafil Impurity 294 (CAS 200575-17-3)
- 6-Chloro-3-(2-(methylthio)pyrimidin-4-yl)-1H-pyrazolo[3,4-d]pyrimidine (CAS 1386398-83-9)
- Alogliptin Impurity 44-d3 (CAS 1794937-18-0)
- 1-(2-Chlorophenyl)-6-mercapto-1H-pyrazolo[3,4-d]pyrimidin-4(5H)-one (CAS 1416340-88-9)
- Ilaprazole Impurity 3 (CAS CATO-C4X-11303)
- Labetalol Impurity 23 (CAS 2724509-52-6)
- Pazopanib Impurity 10 (CAS CATO-C4X-172510)
- (3R,6R)-6-[(Chlorocarbonyl)oxy]-hexahydrofuro[3,2-b]furan-3-yl chloroformate (CAS 1173168-92-7)
- 1'-(2-Methoxyacetyl)-1-methylspiro[indoline-3,4'-piperidin]-2-one (CAS 1798633-12-1)
- 1-(3-Bromophenyl)pyrrolidine (CAS 219928-13-9)
- 10-Hydroxy Warfarin (CAS 83219-99-2)
- Ozanimod Impurity 25 (CAS CATO-C4X-290225)
- 5-(2-Hydroxyphenyl)pyrimidin-2-ol (CAS 1111104-21-2)
- D-[His]1-Semaglutide X TFA salt (CAS CATO-CPTD788634)
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