Sulpiride Impurity 20 CAS 94134-07-3
| CAS No. | 94134-07-3 |
| Molecular Formula | C9H10O6S |
| Molecular Weight | 246.24 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Sulpiride Impurity 20.
As a process- or degradation-related impurity, Sulpiride Impurity 20 (CAS 94134-07-3, C9H10O6S) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Structurally, Sulpiride Impurity 20 (C9H10O6S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 246.24 g/mol, it falls into the medium-molecular-weight range. 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).
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 Impurity 20 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 | C9H10O6S |
| Molecular Weight | 246.24 g/mol |
| Purity | >95% |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1983 |
| Sulfur Atoms | 1 |
Related Sulpiride Standards
- Sulpiride Impurity 23 (CAS CATO-C4X-187623)
- Sulpiride EP Impurity B (CAS 33045-52-2)
- Sulpiride impurity 15 (CAS 77718-16-2)
- Sulpiride EP Impurity C (CAS 33045-53-3)
- Sulpiride Impurity 16 (CAS 34556-95-1)
- Sulpiride EP Impurity D (CAS 22117-85-7)
- Sulpiride EP Impurity E (CAS 52395-25-2)
- Sulpiride Impurity 15 (CAS 51431-45-9)
Recommended Standards
- Cefcapene Impurity 43 (CAS CATO-C4X-182443)
- Latamoxef Impurity 49 (CAS CATO-C4X-179849)
- Salicylic Acid Impurity 21 (CAS CATO-C4X-190221)
- Ceftizoxime Impurity 7 (CAS CATO-C4X-17937)
- Voclosporin Impurity 4 (CAS 121584-34-7)
- Cinacalcet Impurity 56 (CAS 1400812-64-7)
- Dexmedetomidine Impurity 75 (CAS 2128719-74-2)
- n-(4-Chlorobenzyl)-2,2-dimethylpropan-1-amine (CAS 1247735-17-6)
- Dronedarone Impurity 82 (CAS 141645-17-2)
- Methyl (((9H-fluoren-9-yl)methoxy)carbonyl)-L-phenylalaninate (CAS 129397-81-5)
- Methylprednisolone EP Impurity A (CAS 91523-05-6)
- (2-(5-Methylpyridin-3-yl)pyrrolidin-1-yl)(phenyl)methanone (CAS 1352542-13-2)
- 7-Bromo-N-(4-methoxybenzyl)quinolin-4-amine (CAS 1864014-44-7)
- Tirzepatide Impurity 11 TFA salt (CAS CATO-C4X-324011)
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