1217809-60-3 1319AD C28H28Cl2N2O4 Fmoc-4-bis(2-chloroethyl)amino-L-phenylalanine CAS 1217809-60-3
| CAS No. | 1217809-60-3 |
| Molecular Formula | C28H28Cl2N2O4 |
| Molecular Weight | 527.44 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1217809-60-3 1319AD C28H28Cl2N2O4 Fmoc-4-bis(2-chloroethyl)amino-L-phenylalanine (CAS 1217809-60-3), molecular formula C28H28Cl2N2O4 and molecular weight 527.44 g/mol, is a CATO reference standard with documented purity and traceability.
1217809-60-3 1319AD C28H28Cl2N2O4 Fmoc-4-bis(2-chloroethyl)amino-L-phenylalanine (C28H28Cl2N2O4) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
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 | C28H28Cl2N2O4 |
| Molecular Weight | 527.44 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
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