Lapatinib Impurity 19 CAS 320337-48-2
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 320337-48-2 |
| Molecular Formula | C26H19ClFN3O3 |
| Molecular Weight | 475.90 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Lapatinib Impurity 19 (CAS 320337-48-2) is a high-purity pharmacopoeial impurity standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C26H19ClFN3O3. Molecular weight: 475.90 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C26H19ClFN3O3 |
| Molecular Weight | 475.90 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 18.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 3 |
Related Lapatinib Standards
- Lapatinib Impurity 14 (CAS 697299-82-4)
- Lapatinib Impurity 10 (CAS 231278-84-5)
- Lapatinib Impurity 26 (CAS CATO-C4X-119126)
- Lapatinib Impurity 37 (CAS 1268997-70-1)
- Lapatinib Impurity 6 (CAS 231278-25-4)
- Lapatinib Impurity 7 (CAS 320337-46-0)
- Lapatinib Impurity 11 (CAS 231278-83-4)
- Lapatinib Impurity 8 (CAS 202198-16-1)
Recommended Standards
- Methyl 2-[bis(2,2,2-trifluoroethoxy)phosphoryl]-2,2-dibromo-acetate (CAS 318967-86-1)
- (4-(((4-Chlorobenzyl)sulfonyl)methyl)-4-hydroxypiperidin-1-yl)(3-(trifluoromethyl)phenyl)methanone (CAS 866019-54-7)
- (6S)-2-[(3-Chloro-4-fluorophenyl)methyl]-N,8-diethyl-1,2,6,7,8,9-hexahydro-10-hydroxy-6-methyl-1,9-dioxo-pyrazino[1,2:1,5]pyrrolo[2,3-d]pyridazine-4-carboxam (CAS 870005-19-9)
- Riboflavin EP Impurity A (CAS 1088-56-8)
- Etrasimod impurity 19 (CAS CATO-C4X-321419)
- 2-(Chloromethyl)-6-(difluoromethyl)-3-fluoro-5-nitropyridine (CAS 1807128-72-8)
- 7-Azaindole-6-carboxylic Acid (CAS 898746-35-5)
- 3-(Carboxymethyl)cyclobutane-1-carboxylic acid (CAS 2098129-74-7)
- 949588-40-3 Glycine, N-methyl-N-(((1R,2S)-1,2,3,4-tetrahydro-6-methoxy-1-phenyl-2-naphthalenyl)methyl)-, hydrochloride (1:1), rel- ORG 25935 cis-N-Methyl-N-(6-methoxy-1-phenyl-1,2,3,4-tetrahydronaphthalen-2-ylmethyl)aminomethylcarboxylic acid hydrochloride Org25935 ORG-25935 (CAS 949588-40-3)
- D-Gln19-Tirzepatide (CAS CATO-CPTD788915)
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 13829788188 / jacky.chen@cato-chem.com