Acetylcysteine Impurity 15 HCl CAS CATO-C4X-153215
| CAS No. | CATO-C4X-153215 |
| Molecular Formula | C5H9NO3S |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a process- or degradation-related impurity, Acetylcysteine Impurity 15 HCl (CAS CATO-C4X-153215, C5H9NO3SHCl) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C5H9NO3SHCl, Acetylcysteine Impurity 15 HCl contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 199.65 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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), Acetylcysteine Impurity 15 HCl 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 | C5H9NO3S HCl |
| Molecular Weight | 199.65 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 1.0 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Acetylcysteine Standards
- Acetylcysteine Impurity 12 (CAS 1115-65-7)
- Acetylcysteine Impurity 41 (CAS 13100-82-8)
- N-Acetylcysteine-d3 (CAS 131685-11-5)
- Acetylcysteine Impurity 33 (CAS 15058-19-2)
- Acetylcysteine Impurity 37 (CAS 155172-79-5)
- Acetylcysteine Impurity 18 (CAS 1637-71-4)
- Acetylcysteine impurity 66 (CAS 16708-09-1)
- Acetylcysteine EP Impurity D (CAS 18725-37-6)
Recommended Standards
- Sulfasalazine EP Impurity C (CAS 66030-25-9)
- Cefazolin Impurity 83 (CAS CATO-C4X-157783)
- Mirabegron Impurity 9 (CAS 29676-71-9)
- 5-(Difluoromethyl)-3-nitro-6-oxo-1,6-dihydropyridine-2-carboxamide (CAS 1805529-21-8)
- Falipamil (CAS 77862-92-1)
- Dimethyl (2S,4R)-piperidine-2,4-dicarboxylate (CAS 98935-65-0)
- 2,2-Diethoxyacetimidamide hydrochloride (CAS 203054-46-0)
- Terbutaline impurity 71 (CAS 13262-38-9)
- 3-(2-Chlorobenzyl)-3H-[1,2,3]triazolo[4,5-d]pyrimidin-7-amine (CAS 832112-89-7)
- Semaglutide impurity 33 (CAS CATO-C4X-222633)
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