Acetylcysteine Impurity 40 HCl CAS CATO-C4X-153258
| CAS No. | CATO-C4X-153258 |
| Molecular Formula | C8H14N2O5S2 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of Acetylcysteine Impurity 40 HCl (C8H14N2O5S2HCl) is characterized by an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
As a process- or degradation-related impurity, Acetylcysteine Impurity 40 HCl (CAS CATO-C4X-153258, C8H14N2O5S2HCl) 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), Acetylcysteine Impurity 40 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 | C8H14N2O5S2 HCl |
| Molecular Weight | 318.79 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 | Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 2.0 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 2 |
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
- Cloxacillin Impurity 8 (CAS 76788-83-5)
- Tirzepatide Impurity 47 (CAS CATO-C4X-324047)
- Tirofiban Impurity 68 (CAS CATO-C4X-125468)
- Semaglutide Impurity 14(Discontinued,See CPTD788307 ) (CAS CATO-C4X-222614)
- (5-Cyclopropyl-2-(methoxycarbonyl)pyridin-4-yl)boronic acid (CAS 2225175-31-3)
- 2-(Bromomethyl)-5-methylbenzo[d]oxazole (CAS 1806427-00-8)
- 2-amino-5-chloro-3-methylbenzenethiol (CAS 101326-14-1)
- 1-Benzyl-2-(trifluoromethyl)-4,5-dihydro-1H-imidazole (CAS 1069085-40-0)
- N1,N1-Bis(2-chloropropyl)oxalamide (CAS 61051-13-6)
- [Nva12]-Tirzepatide (CAS CATO-C4X-324042)
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