Fluvastatin Aldehyde Impurity CAS 93957-50-7
| CAS No. | 93957-50-7 |
| Molecular Formula | C20H18 |
| Molecular Weight | 307.36 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Fluvastatin Aldehyde Impurity.
Fluvastatin Aldehyde Impurity (CAS 93957-50-7) is a certified pharmaceutical impurity reference standard with the molecular formula C20H18 and a molecular weight of 307.36 g/mol.
Fluvastatin Aldehyde Impurity (C20H18) contains a polycyclic aromatic system. Its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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.
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.
Physical & Chemical Properties
| Molecular Formula | C20H18 |
| Molecular Weight | 307.36 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1983 |
Related Fluvastatin Standards
- Fluvastatin EP Impurity G (CAS 101125-34-2)
- Fluvastatin Impurity 20 (CAS 1025064-18-9)
- Fluvastatin Impurity 17 (CAS CATO-C4X-165117)
- Fluvastatin Impurity 18 (CAS CATO-C4X-165118)
- Fluvastatin Impurity 19 (CAS CATO-C4X-165119)
- Fluvastatin Impurity N5 (CAS 920275-09-8)
- Fluvastatin Impurity 10 (CAS 920275-10-1)
- Fluvastatin EP Impurity E (CAS CATO-C4X-16515)
Recommended Standards
- Iguratimod impurity 90 (CAS CATO-C4X-182690)
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- 3-(3-Methoxy-1-methyl-1H-pyrazol-4-yl)-4-(2-methoxyethyl)-5-(prop-2-yn-1-ylthio)-4H-1,2,4-triazole (CAS 1014095-86-3)
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- Faropenem Impurity 35 (CAS CATO-C4X-128935)
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- (1r)-1-(Chroman-3-yl)ethan-1-amine (CAS 1372909-06-2)
- (2E)-1,4-Bis(4-bromophenyl)-2-butene-1,4-dione (CAS 74322-80-8)
- 2-(2-Methoxy-4-methylphenoxy)propanoic acid (CAS 63857-96-5)
- 5-(4-Bromophenyl)-3-methyl-1,2,4-oxadiazole (CAS 71566-07-9)
- 2-Chloro-N-cyclopropyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)aniline (CAS 1152617-46-3)
- Semaglutide Impurity 165 (CAS CATO-C4X-2226165)
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