Fosinopril Impurity 7 HCl CAS 90657-55-9
| CAS No. | 90657-55-9 |
| Molecular Formula | C11H19NO2 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Fosinopril Impurity 7 HCl under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
CATO supplies Fosinopril Impurity 7 HCl (CAS 90657-55-9), a pharmacopoeial impurity reference standard (molecular formula C11H19NO2HCl, MW 233.74 g/mol) used for the identification and quantification of trace impurities in APIs.
The molecular framework of Fosinopril Impurity 7 HCl (C11H19NO2HCl) is characterized by an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C11H19NO2 HCl |
| Molecular Weight | 233.74 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1982 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Fosinopril Standards
- Fosinopril Impurity 5 (CAS 123599-78-0)
- Fosinopril EP Impurity I (CAS 123599-82-6)
- Fosinopril Related Compound D (CAS 1356353-41-7)
- Fosinopril Impurity 2 (CAS 1421283-57-9)
- Fosinopril Impurity 1 (CAS 149760-14-5)
- Fosinopril EP Impurity C (CAS 474519-28-3)
- Fosinopril Impurity 1 (CAS 72651-25-3)
- Fosinopril Impurity 2 2*Na Salt (CAS 83623-61-4（free acid）)
Recommended Standards
- Captopril EP Impurity G (R-Isomer) (CAS 74431-52-0)
- Carvedilol Impurity 29 (CAS CATO-C4X-157429)
- Bifonazole Impurity 15 (CAS CATO-C4X-156015)
- (2-(Isopentyloxy)phenyl)methanamine (CAS 37806-49-8)
- 1-{4-aminopyrrolo[2,1-f][1,2,4]triazin-2-yl}ethan-1-one (CAS 2090473-76-8)
- 1-Naphthalenesulfonamide, n-methyl- (CAS 71862-34-5)
- 4-bromo-2-(2,6-dioxo-3-piperidyl)isoindoline-1,3-dione (CAS 2093536-12-8)
- methyl 2-amino-3-oxobutanoate (CAS 68277-01-0)
- Ziprasidone EP Impurity A (CAS 87691-87-0)
- Semaglutide impurity 54 (CAS CATO-C4X-222654)
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