Thioctic acid Impurity 3 CAS 6992-30-9
| CAS No. | 6992-30-9 |
| Molecular Formula | C8H14O3S2 |
| Molecular Weight | 222.32 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C8H14O3S2, Thioctic acid Impurity 3 contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 222.32 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry.
As a process- or degradation-related impurity, Thioctic acid Impurity 3 (CAS 6992-30-9, C8H14O3S2) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
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.
As a certified reference material (CRM), Thioctic acid Impurity 3 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 | C8H14O3S2 |
| Molecular Weight | 222.32 g/mol |
| Purity | >95% |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1958 |
| Sulfur Atoms | 2 |
Related Thioctic Standards
- Thioctic acid Impurity 10 (CAS 188783-96-2)
- Thioctic acid Impurity 12 (CAS CATO-C4X-152612)
- Thioctic acid Impurity 2 (CAS 108015-78-7)
- Thioctic acid Impurity 20 (CAS 2114407-83-7)
- Thioctic acid Impurity 26 (CAS 2114407-76-8)
- Thioctic acid Impurity 27 (CAS 2114407-82-6)
- Thioctic acid Impurity 30 (CAS CATO-C4X-152630)
- Thioctic acid Impurity 31 (CAS CATO-C4X-152631)
Recommended Standards
- Thioctic acid Impurity 32 (CAS CATO-C4X-152632)
- Thioctic acid impurity 63 (CAS 2114407-78-0)
- Thioctic acid impurity 64 (CAS CATO-C4X-152664)
- Thioctic acid Impurity 67 (CAS CATO-C4X-152667)
- Atenolol EP Impurity J HCI (CAS CATO-C4X-154923)
- Dronedarone Impurity 64 (CAS CATO-C4X-109264)
- Pioglitazone Impurity 24 (CAS 127676-18-0)
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