Acetylcysteine impurity 74 CAS CATO-C4X-153274
| CAS No. | CATO-C4X-153274 |
| Molecular Formula | C10H16N2O5S2 |
| Molecular Weight | 308.37 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Acetylcysteine impurity 74 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.
As a process- or degradation-related impurity, Acetylcysteine impurity 74 (CAS CATO-C4X-153274, C10H16N2O5S2) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C10H16N2O5S2, Acetylcysteine impurity 74 contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 308.37 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.
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.
Physical & Chemical Properties
| Molecular Formula | C10H16N2O5S2 |
| Molecular Weight | 308.37 g/mol |
| Purity | 97%+ |
| 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 2 |
Related Acetylcysteine Standards
- Acetylcysteine Impurity 6 (CAS 55748-93-1)
- Acetylcysteine EP Impurity C (CAS 5545-17-5)
- Acetylcysteine Impurity 13 (CAS CATO-C4X-153213)
- Acetylcysteine Impurity 57 (CAS CATO-C4X-153257)
- Acetylcysteine Impurity 8 (CAS CATO-C4X-15328)
- Acetylcysteine impurity 61 (CAS CATO-C4X-153261)
- Acetylcysteine Impurity 50 (CAS 24125-26-6)
- Acetylcysteine Impurity 40 (CAS 25779-79-7)
Recommended Standards
- Amiodarone Impurity 26 (CAS CATO-C4X-142526)
- Lisinopril EP Impurity H (CAS 138247-43-5)
- Amiodarone Impurity 24 (CAS CATO-C4X-142524)
- Bestatin (CAS 58970-76-6)
- Tedizolid Impurity 30 (CAS 1220910-90-6(Free Acid))
- Timolol Impurity 15 (CAS 949293-84-9)
- Bosutinib Impurity N1 (CAS 879644-03-8)
- 2,3-Dimethyl-4-methoxybenzophenone (CAS 134994-51-7)
- 2-Chloro-N-(3,5-dimethylisoxazol-4-yl)-N-(ethoxymethyl)acetamide (CAS 87675-12-5)
- 1-Bromo-4-(trichloromethoxy)benzene (CAS 1404193-67-4)
- 2,5,6-Trichlorobenzo[d]oxazole (CAS 177268-36-9)
- Oseltamivir Impurity 134 (CAS CATO-C4X-1720134)
- Methazolamide Impurity 6 (CAS CATO-C4X-34046)
- TAT 14 Peptide (Nrf2 Activator III) (CAS 1362661-34-4)
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