Cefaclor EP Impurity D (Mixture of Diastereomers) CAS 152575-13-8
| CAS No. | 152575-13-8 |
| Molecular Formula | C15H14ClN3O4S |
| Molecular Weight | 367.81 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.
As a process- or degradation-related impurity, Cefaclor EP Impurity D (Mixture of Diastereomers) (CAS 152575-13-8, C15H14ClN3O4S) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Cefaclor EP Impurity D (Mixture of Diastereomers) (C15H14ClN3O4S) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. 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. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
As a certified reference material (CRM), Cefaclor EP Impurity D (Mixture of Diastereomers) 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 | C15H14ClN3O4S |
| Molecular Weight | 367.81 g/mol |
| Purity | >90% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2000 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Cefaclor Standards
- Cefaclor (CAS 53994-73-3)
- Cefaclor Impurity 15 (CAS CATO-C4X-127015)
- Cefaclor EP Impurity C (CAS 143059-69-2)
- Cefaclor Diketopiperazine (CAS CATO-C4X-127051)
- Cefaclor Impurity 54 (CAS CATO-C4X-127054)
- Cefaclor Impurity 64 (CAS CATO-C4X-127064)
- Cefaclor Impurity C37 (CAS 53994-83-5)
- Cefaclor Impurity 23 (CAS 1426173-90-1)
Recommended Standards
- Phosalone (CAS 2310-17-0)
- 4-(2-Chloroacetamido)-n-(3-sulfamoylphenyl)benzamide (CAS 923897-58-9)
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- 3-Chloro-4-(3-(4-hydroxyphenyl)-5-oxoimidazolidin-1-yl)benzenesulfonamide (CAS 65653-83-0)
- Semaglutide Impurity 7 (CAS CATO-C4X-22267)
- Dopamine Impurity 42 (CAS CATO-C4X-190842)
- Drotaverin Impurity 59 (CAS CATO-C4X-243559)
- 2-Amino-5-iodoindane (CAS 132367-76-1)
- 3-(3-Methylpiperazin-1-yl)pyrazine-2-carbonitrile (CAS 1249614-57-0)
- Brimonidine Tartrate (CAS 70359-46-5)
- Butane-1,4-diylbis(di-tert-butylphosphonium) tetrafluoroborate (CAS 2348368-20-5)
- Dapagliflozin Impurity 159 (CAS 936-08-3)
- Delafloxacin Impurity 24 (CAS CATO-C4X-263724)
- CBP501 Affinity Peptide trifluoroacetate salt (CAS 1351804-17-5)
Why CATO?
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