Carbocisteine Impurity 19 CAS 14226-97-2
| CAS No. | 14226-97-2 |
| Molecular Formula | C5H7NO3S |
| Molecular Weight | 161.18 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a process- or degradation-related impurity, Carbocisteine Impurity 19 (CAS 14226-97-2, C5H7NO3S) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Owing to an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, Carbocisteine Impurity 19 is typically white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 161.18 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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.
CATO manufactures Carbocisteine Impurity 19 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C5H7NO3S |
| Molecular Weight | 161.18 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 | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1961 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Carbocisteine Standards
- Carbocisteine Impurity N1 (CAS 31898-75-6)
- Carbocisteine Impurity 46 (CAS CATO-C4X-201046)
- Carbocisteine Impurity 3 (CAS 88620-38-6)
- Carbocisteine Impurity 9 (CAS 87862-95-1)
- Carbocisteine S-Isomer (CAS 50698-76-5)
- Carbocisteine Impurity 13 (CAS 21301-10-0)
- Carbocisteine Impurity 62 (CAS CATO-C4X-201062)
- Carbocisteine-13C3 (CAS 1391068-19-1)
Recommended Standards
- Acetylcysteine Impurity 14 (CAS 62305-89-9)
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- Ibrutinib Impurity 42 (CAS 2052279-49-7)
- Rosuvastatin Impurity 252 (CAS 587855-03-6)
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- N,N-dimethyl-2-[(methylamino)methyl]aniline (CAS 1095080-04-8)
- 6-Bromo-3-isopropyl-[1,2,4]triazolo[4,3-a]pyridine (CAS 459448-06-7)
- (3R,4R,5R,6R)-6-(acetoxymethyl)-3-aminotetrahydro-2H-pyran-2,4,5-triyl triacetate hydrochloride (CAS 1355005-40-1)
- Gefitinib D8 (CAS 857091-32-8)
- (E)-[(5-Chloro-1,3-dimethyl-1H-pyrazol-4-yl)methylidene]amino 4-methylbenzoate (CAS 303987-95-3)
- 2-nitro-4-(thiophen-2-yl)aniline (CAS 405170-93-6)
- ([13C6]Leu14)-Glucagon (1-29) (human, rat, porcine) trifluoroacetate salt (CAS 1802078-39-2)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com