Acetylcysteine Impurity 45 Trifluoroacetic acid CAS 79560-92-2(Free Base)
| CAS No. | 79560-92-2(Free Base) |
| Molecular Formula | C5H9NO6S |
| Molecular Weight | N/A |
| 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 Acetylcysteine Impurity 45 Trifluoroacetic acid.
As a process- or degradation-related impurity, Acetylcysteine Impurity 45 Trifluoroacetic acid (CAS 79560-92-2(Free Base), C5H9NO6SC2HF3O2) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C5H9NO6SC2HF3O2, Acetylcysteine Impurity 45 Trifluoroacetic acid contains a carbohydrate-derived structure, an amide group, a sulfone group, fluorine substitution; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 325.21 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 45 Trifluoroacetic acid 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 | C5H9NO6S C2HF3O2 |
| Molecular Weight | 325.21 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| 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) | 2.0 |
| Halogen Content | F-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
- Topiroxostat Impurity 53 (CAS CATO-C4X-105553)
- Caspofungin Impurity 16 (CAS CATO-C4X-157516)
- Upadacitinib Impurity 15 (CAS 1201187-44-1)
- 4-(2,6-Dichlorobenzoyl)-N-[(thiophen-2-yl)methyl]-1H-pyrrole-2-carboxamide (CAS 477870-37-4)
- 2-chloro-3-cyclobutoxypyrazine (CAS 1250943-13-5)
- 6-(Benzo[d]thiazol-2-yl)picolinic acid (CAS 100283-51-0)
- 5-carbamoyl-2-methylphenylboronic Acid Pinacol Ester (CAS 882679-88-1)
- 1-(2-methyl-1,3-oxazol-4-yl)ethan-1-ol (CAS 1803595-56-3)
- 1-(Benzylsulfonyl)-1,4-diazepane hydrochloride (CAS 1603766-70-6)
- Pancreatic Polypeptide (bovine) (CAS 179986-89-1)
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