| CAS No. | 1227281-44-8 |
| Molecular Formula | C20H19NO6 |
| Molecular Weight | 369.37 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
The occurrence of 3-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-4-methoxy-4-oxobutanoic acid is closely related to a flavonoid core, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
3-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-4-methoxy-4-oxobutanoic acid (CAS 1227281-44-8), molecular formula C20H19NO6 and molecular weight 369.37 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 3-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-4-methoxy-4-oxobutanoic acid (C20H19NO6) is characterized by a flavonoid core, an amide group, a hydroxyl group, an ether linkage. 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.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 3-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-4-methoxy-4-oxobutanoic acid meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
| Molecular Formula | C20H19NO6 |
| Molecular Weight | 369.37 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, 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 |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Nitrogen Atoms | 1 |