| CAS No. | 477889-71-7 |
| Molecular Formula | C25H20ClNO5 |
| Molecular Weight | 449.88 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
The molecular framework of 4-[3-Methoxy-3-oxo-2-(1-oxo-2,3-dihydro-1H-isoindol-2-yl)propyl]phenyl 2-chlorobenzoate (C25H20ClNO5) is characterized by a flavonoid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
4-[3-Methoxy-3-oxo-2-(1-oxo-2,3-dihydro-1H-isoindol-2-yl)propyl]phenyl 2-chlorobenzoate (CAS 477889-71-7), molecular formula C25H20ClNO5 and molecular weight 449.88 g/mol, is a CATO reference standard with documented purity and traceability.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO manufactures 4-[3-Methoxy-3-oxo-2-(1-oxo-2,3-dihydro-1H-isoindol-2-yl)propyl]phenyl 2-chlorobenzoate 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.
| Molecular Formula | C25H20ClNO5 |
| Molecular Weight | 449.88 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |