Fluvastatin Impurity 20 CAS 1025064-18-9
| CAS No. | 1025064-18-9 |
| Molecular Formula | C19H16FN |
| Molecular Weight | 277.34 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
Fluvastatin Impurity 20 (CAS 1025064-18-9) is a certified pharmaceutical impurity reference standard with the molecular formula C19H16FN and a molecular weight of 277.34 g/mol.
Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, fluorine substitution, Fluvastatin Impurity 20 is typically pale yellow to yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 277.34 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
Physical & Chemical Properties
| Molecular Formula | C19H16FN |
| Molecular Weight | 277.34 g/mol |
| Purity | ≥95% |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | May oxidize slowly on prolonged air exposure; 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.) | 1988 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
Related Fluvastatin Standards
- Fluvastatin EP Impurity G (CAS 101125-34-2)
- Fluvastatin Impurity 18 (CAS CATO-C4X-165118)
- Fluvastatin Impurity 19 (CAS CATO-C4X-165119)
- Fluvastatin Aldehyde Impurity (CAS 93957-50-7)
- Fluvastatin Impurity 17 (CAS CATO-C4X-165117)
- Fluvastatin Impurity N5 (CAS 920275-09-8)
- Fluvastatin Impurity 10 (CAS 920275-10-1)
- Fluvastatin EP Impurity E (CAS CATO-C4X-16515)
Recommended Standards
- Fudosteine impurity 51 (CAS CATO-C4X-144751)
- Phentolamine Impurity 24 (CAS CATO-C4X-224724)
- Fasudil Impurity 43 (CAS 84468-24-6)
- Belinostat Impurity 3 (CAS CATO-C4X-34903)
- Lansoprazole Impurity 28 (CAS 152402-97-6)
- Beclometasone Impurity 33 (CAS CATO-C4X-147433)
- Atracurium Impurity 73 TFA salt (CAS CATO-C4X-185073)
- B-(4,6-Dimethyl-3-pyridinyl)boronic acid (CAS 1001907-68-1)
- 2-[4-(Hydroxymethyl)piperidin-1-yl]acetamide (CAS 1187326-14-2)
- 2-(Hydroxymethyl)terephthalic acid (CAS 23405-34-7)
- Acetylastragaloside I (CAS 84687-47-8)
- (S)-Ethyl 1-amino-2,3-dihydro-1H-indene-1-carboxylate (CAS 1821770-33-5)
- Potassium sec-butylxanthogenate (CAS 141-96-8)
- Neuropeptide Y, human (CAS 98264-90-5)
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