Lapatinib Impurity 39 CAS CATO-C4X-119139
| CAS No. | CATO-C4X-119139 |
| Molecular Formula | C4H9NO5S |
| Molecular Weight | 183.18 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 183.18 g/mol gives Lapatinib Impurity 39 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
As a process- or degradation-related impurity, Lapatinib Impurity 39 (CAS CATO-C4X-119139, C4H9NO5S) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C4H9NO5S, Lapatinib Impurity 39 contains a carbohydrate-derived structure, an amide group, a sulfone group; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 183.18 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.
CATO manufactures Lapatinib Impurity 39 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 | C4H9NO5S |
| Molecular Weight | 183.18 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 | Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 1.0 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Lapatinib Standards
- Lapatinib Impurity 4 (CAS 6373-46-2)
- Lapatinib Impurity 2 (CAS 202197-25-9)
- Lapatinib Impurity 29 (CAS 27329-70-0)
- Lapatinib Impurity 38 (CAS CATO-C4X-119138)
- Lapatinib Impurity 40 (CAS CATO-C4X-119140)
- Lapatinib Impurity 3 (CAS 59404-86-3)
- Lapatinib Impurity 1 (CAS 202197-26-0)
- Lapatinib Impurity 23 (CAS 202197-27-1)
Recommended Standards
- 877142-62-6 6-Methyl-2H-thieno[2,3-d][1,3]oxazine-2,4(1H)-dione MFCD14281985 (CAS 877142-62-6)
- Saccharin (CAS 81-07-2)
- 710-31-6 2-[(4-Fluorophenyl)amino]acetohydrazide (non-preferred name) MFCD00100332 (CAS 710-31-6)
- Flurbiprofen Impurity N1 (CAS 81937-33-9)
- Eletriptan Impurity 2 (CAS CATO-C4X-18872)
- Naproxen Impurity 34 (CAS CATO-C4X-170834)
- Baloxavir Impurity 134 (CAS CATO-C4X-2108134)
- 2-(Difluoromethyl)-5-hydroxypyridine-4-acetonitrile (CAS 1806050-21-4)
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- Methyl 3-hydroxy-3-(o-tolyl)propanoate (CAS 124393-57-3)
- 2-Amino-4H-benzo[4,5]imidazo[1,2-b]pyrazole-3-carbonitrile (CAS 158591-06-1)
- N-(4-Bromophenyl)-2-chloroacetamide (CAS 2564-02-5)
- 2-Ethyl-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine (CAS 2223038-57-9)
- Semaglutide (CAS CATO-C4X-2226105)
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