Sulpiride EP Impurity D CAS 22117-85-7
| CAS No. | 22117-85-7 |
| Molecular Formula | C8H9NO5S |
| Molecular Weight | 231.23 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Sulpiride EP Impurity D (C8H9NO5S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, 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 process- or degradation-related impurity, Sulpiride EP Impurity D (CAS 22117-85-7, C8H9NO5S) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
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 certified reference material (CRM), Sulpiride EP Impurity D 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 | C8H9NO5S |
| Molecular Weight | 231.23 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Sulpiride Standards
- Sulpiride Impurity 16 (CAS 34556-95-1)
- Sulpiride EP Impurity E (CAS 52395-25-2)
- Sulpiride impurity 13 (CAS CATO-C4X-187613)
- Sulpiride EP Impurity B (CAS 33045-52-2)
- Sulpiride Impurity 7 (CAS 5378-41-6)
- Sulpiride Impurity 20 (CAS 94134-07-3)
- Sulpiride Impurity 23 (CAS CATO-C4X-187623)
- Sulpiride impurity 15 (CAS 77718-16-2)
Recommended Standards
- Ticagrelor Impurity 43 (CAS 145783-13-7)
- Bumetanide Impurity 41 (CAS 20532-06-3)
- 4-Nitrobenzyl Mesylate (CAS 39628-94-9)
- Landiolol Impurity 141 (CAS CATO-C4X-2621141)
- Salbutamol Sulfate EP Impurity L (CAS CATO-C4X-117672)
- Lifitegrast Impurity 163 (CAS CATO-C4X-2409163)
- Paliperidone Impurity 53 (CAS CATO-C4X-172453)
- Methyl 3-Amino-4-[[2-(methoxycarbonyl)phenyl]thio]benzoate (CAS 1319194-14-3)
- 2-((2-Chlorobenzyl)oxy)-4-fluorobenzaldehyde (CAS 1443339-34-1)
- 3-Bromo-6-methylpyridin-2-ol (CAS 374633-33-7)
- Acyclovir Identification Reference (API& EP Impurity C & EP Impurity I Mixture) (CAS CATO-C4X-101027)
- BMS-1166 (CAS 1818314-88-3)
- 2-Benzyl-1H-benzoimidazol-5-ylaminedihydrochloride (CAS 1185300-53-1)
- TRAF6 Control Peptide trifluoroacetate salt (CAS 852690-80-3)
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