Risedronate impurity 11 CAS CATO-C4X-175011
| CAS No. | CATO-C4X-175011 |
| Molecular Formula | C15H27NO7P2 |
| Molecular Weight | 395.32 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
Risedronate impurity 11 (CAS CATO-C4X-175011) is a certified pharmaceutical impurity reference standard with the molecular formula C15H27NO7P2 and a molecular weight of 395.32 g/mol.
Risedronate impurity 11 (C15H27NO7P2) contains an amide group, a phosphate ester group, a carboxylic acid group, a hydroxyl group, an ether linkage. 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).
As a certified reference material (CRM), Risedronate impurity 11 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 | C15H27NO7P2 |
| Molecular Weight | 395.32 g/mol |
| Appearance | White to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| Nitrogen Atoms | 1 |
Related Risedronate Standards
- Risedronate Impurity 10 (CAS 1630901-84-6)
- Risedronate EP Impurity C (CAS 105462-25-7)
- Risedronate EP Impurity B (CAS 105462-23-5)
- Risedronate 2.5-Hydrate EP Impurity E (CAS 75755-10-1)
- Risedronate EP Impurity A (CAS 1486617-90-6)
- Risedronate Sodium (CAS 115436-72-1)
- Risedronate Related Compound A (CAS 1220806-40-5)
- Risedronate Sodium Hemipentahydrate (CAS 329003-65-8)
Recommended Standards
- 400045-79-6 tert-Butyl benzyl(4-iodobutyl)carbamate DTXSID90626359 (CAS 400045-79-6)
- Pcb No. 170 (CAS 35065-30-6)
- Tert-butyl 2-(5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)thiophen-3-yl)morpholine-4-carboxylate (CAS 2223003-47-0)
- Pcb No. 171 (CAS 52663-71-5)
- Flurbiprofen Impurity N16 (CAS 252846-89-2)
- Benserazide Impurity 14 Hcl (CAS CATO-C4X-142714)
- Fexofenadine Impurity 19 (CAS CATO-C4X-179419)
- 6-methoxy-N-(piperidin-4-yl)pyrimidin-4-amine (CAS 1354088-13-3)
- N-(2-methyl-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)pivalamide (CAS 2376880-08-7)
- (R)-3-Methyl-1-phenylbutan-1-amine hydrochloride (CAS 1263198-93-1)
- CADMIUM CYANIDE (CAS 542-83-6)
- Bisphenol B-D8 (CAS 2469735-90-6)
- 4-(Bromomethyl)-2-methoxybenzoic acid (CAS 88709-30-2)
- Neuropeptide Y (free acid) (human, rat) trifluoroacetate salt (CAS 99575-89-0)
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