(S)-2-acetamido-3-(3-iodo-4-(4-methoxyphenoxy)phenyl)propanamide CAS 59302-20-4
| CAS No. | 59302-20-4 |
| Molecular Formula | C18H19IN2O4 |
| Molecular Weight | 454.26 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
(S)-2-acetamido-3-(3-iodo-4-(4-methoxyphenoxy)phenyl)propanamide (CAS 59302-20-4), molecular formula C18H19IN2O4 and molecular weight 454.26 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, iodine substitution, (S)-2-acetamido-3-(3-iodo-4-(4-methoxyphenoxy)phenyl)propanamide is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 454.26 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
As a certified reference material (CRM), (S)-2-acetamido-3-(3-iodo-4-(4-methoxyphenoxy)phenyl)propanamide 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.
Physical & Chemical Properties
| Molecular Formula | C18H19IN2O4 |
| Molecular Weight | 454.26 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1973 |
| Halogen Content | I-containing |
| Nitrogen Atoms | 2 |
Related S Standards
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- 3-Acetamido-5-amino-2,6-diiodobenzoic Acid (CAS 1713-08-2)
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