Lapatinib Impurity 40 CAS CATO-C4X-119140
| CAS No. | CATO-C4X-119140 |
| Molecular Formula | C9H11NO4S |
| Molecular Weight | 229.25 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
Lapatinib Impurity 40 (CAS CATO-C4X-119140) is a certified pharmaceutical impurity reference standard with the molecular formula C9H11NO4S and a molecular weight of 229.25 g/mol.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, Lapatinib Impurity 40 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 229.25 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO manufactures Lapatinib Impurity 40 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 | C9H11NO4S |
| Molecular Weight | 229.25 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 | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Lapatinib Standards
- Lapatinib Impurity 3 (CAS 59404-86-3)
- Lapatinib Impurity 2 (CAS 202197-25-9)
- Lapatinib Impurity 1 (CAS 202197-26-0)
- Lapatinib Impurity 23 (CAS 202197-27-1)
- Lapatinib Impurity 5 (CAS 179246-45-8)
- Lapatinib Impurity 45 -d6 (CAS CATO-C4X-119145)
- Lapatinib Impurity 4 (CAS 6373-46-2)
- Lapatinib Impurity 39 (CAS CATO-C4X-119139)
Recommended Standards
- Tamsulosin Impurity 18 (CAS CATO-C4X-118718)
- Carbazochrome Impurity 11 (CAS CATO-C4X-229111)
- 2-(2-HYDROXY-1,1-DIHYDROXYMETHYL-ETHYLAMINO)-ETHANESULFONIC ACID 2-(tris(hydroxymethyl)methylamino)ethane-1-sulphonic acid 2-{[2-hydroxy-1,1-bis(hydroxymethyl)ethyl]amino}ethanesulfonic acid 7365-44-8 CHEBI:44356 N-Tris[hydroxymethyl]methyl-2-aminoethanesulfonic acid N-tri(hydroxymethyl)methyltaurine N-tris(hydroxymethyl)methyl-2-aminoethanesulfonic acid TES TES buffer tris(hydroxymethyl)methyl-2-aminomethane sulfonic acid (CAS 7365-44-8)
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- 3-(3-Methoxyisoxazol-5-yl)propanoyl chloride (CAS 1243092-55-8)
- Fluvastatin Sodium - Impurity A (CAS 1025085-49-7)
- 5-((Ethylsulfinyl)methyl)isoxazol-3(2H)-one (CAS 89661-23-4)
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- Thiazol-2-yl(4-(trifluoromethoxy)phenyl)methanone (CAS 1443340-39-3)
- Emtricitabine impurity 49 (CAS CATO-C4X-123249)
- Semaglutide impurity 194 (CAS CATO-C4X-2226194)
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