Lapatinib Impurity 37 CAS 1268997-70-1
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 1268997-70-1 |
| Molecular Formula | C22H21ClN4O4S |
| Molecular Weight | 472.94 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Lapatinib Impurity 37 (CAS 1268997-70-1) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C22H21ClN4O4S. Molecular weight: 472.94 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C22H21ClN4O4S |
| Molecular Weight | 472.94 g/mol |
| 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
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- 2-{1-[(3,4-dimethoxyphenyl)methyl]-2,5-dioxoimidazolidin-4-yl}acetic acid (CAS 1910706-36-3)
- (R)-tert-Butyl 3-((6-(diethylamino)pyrimidin-4-yl)amino)pyrrolidine-1-carboxylate (CAS 1354000-17-1)
- Fibrinopeptide A, human TFA (CAS 61533-47-9)
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