Indapamide EP Impurity C CAS 31529-46-1
| CAS No. | 31529-46-1 |
| Molecular Formula | C9H12N2 |
| Molecular Weight | 148.20 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Indapamide EP Impurity C is closely related to a nitrogen-containing heterocyclic scaffold, a nitrile group in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies Indapamide EP Impurity C (CAS 31529-46-1), a pharmacopoeial impurity reference standard (molecular formula C9H12N2, MW 148.20 g/mol) used for the identification and quantification of trace impurities in APIs.
Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, Indapamide EP Impurity C is typically off-white to pale yellow liquid. Its solid-state physicochemical attributes — including a molecular weight of 148.20 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
As a certified reference material (CRM), Indapamide EP Impurity C meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C9H12N2 |
| Molecular Weight | 148.20 g/mol |
| Purity | >90% |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1966 |
| Nitrogen Atoms | 2 |
Related Indapamide Standards
- Indapamide EP Impurity C (CAS 77083-51-3)
- Indapamide Impurity 20 (CAS 53406-41-0)
- Indapamide Impurity 12 (CAS CATO-C4X-140012)
- Indapamide Impurity 43 (CAS CATO-C4X-140043)
- Indapamide EP Impurity A (Mixture of Diastereomers) (CAS 85440-79-5)
- Indapamide Impurity 22 (CAS 6872-06-6)
- Indapamide Impurity 32 (CAS 22160-09-4)
- Indapamide Impurity 33 (CAS 22160-13-0)
Recommended Standards
- Dexmedetomidine Impurity 31 (CAS 2142-71-4)
- 1,1,1-Trimethoxybutane (CAS 43083-12-1)
- Amorolfine Impurity 41 (CAS 5445-77-2)
- 1-(p-Tolyl)propan-2-one (CAS 2096-86-8)
- Semaglutide impurity 204 (CAS CATO-C4X-2226204)
- Isavuconazole Impurity 125 (CAS CATO-C4X-1236125)
- Lenalidomide Impurity 4 (CAS 48103-74-8)
- (E)-2-Bromo-3-(2-methoxyvinyl)pyridine (CAS 1884203-32-0)
- 7-Bromo-1-methyl-1,2,3,4-tetrahydroquinoxaline (CAS 1427391-09-0)
- Ethyl 6-bromo-4-hydroxy-8-(trifluoromethyl)quinoline-3-carboxylate (CAS 228728-39-0)
- 4-Acetylfuran-2-sulfonamide (CAS 256373-95-2)
- tert-Butyl (4,6-dichloropyrimidin-2-yl)carbamate (CAS 2058076-43-8)
- tert-butyl (6-(cyanomethyl)benzo[d]thiazol-2-yl)carbamate (CAS 1440526-50-0)
- Acetyl-Exenatide trifluoroacetate salt (CAS 305815-28-5)
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