Cilastatin Impurity 48 CAS CATO-C4X-196048
| CAS No. | CATO-C4X-196048 |
| Molecular Formula | C13H19ClNO3 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Cilastatin Impurity 48 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.
CATO supplies Cilastatin Impurity 48 (CAS CATO-C4X-196048), a pharmacopoeial impurity reference standard (molecular formula C13H19ClNO3Na, MW 295.74 g/mol) used for the identification and quantification of trace impurities in APIs.
Owing to a salt form, a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, Cilastatin Impurity 48 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 295.74 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).
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.
Physical & Chemical Properties
| Molecular Formula | C13H19ClNO3 Na |
| Molecular Weight | 295.74 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Cilastatin Standards
- Cilastatin Impurity 29 (CAS 1022895-93-7)
- Cilastatin Impurity 9 (CAS 106462-18-4)
- Cilastatin Impurity 21 (CAS 107872-23-1)
- Cilastatin enantiomer (CAS 107872-24-2)
- Cilastatin Impurity 15 (CAS 1114-50-7)
- Cilastatin EP Impurity E (CAS 1174657-07-8)
- Cilastatin Sodium - Impurity G (CAS 1174657-12-5)
- Cilastatin Impurity 9 (CAS 131833-97-1)
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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