| CAS No. | CATO-C4X-168442 |
| Molecular Formula | - |
| Molecular Weight | 289.48 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
CATO supplies Lovastatin Impurity 42 (CAS CATO-C4X-168442), a pharmacopoeial impurity reference standard (molecular formula N/A, MW 289.48 g/mol) used for the identification and quantification of trace impurities in APIs.
Lovastatin Impurity 42 is supplied as a fully characterized reference material; its structural identity, assigned purity, and stability data are documented in the batch-specific Certificate of Analysis (COA).
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
| Molecular Formula | C20H33AO |
| Molecular Weight | 289.48 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 95% |
| Storage | Store at room temperature |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | 4.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |