N,N'-((ethane-1,2-diylbis(oxy))bis(3,1-phenylene))diacetamide CAS 67499-50-7
| CAS No. | 67499-50-7 |
| Molecular Formula | C18H20N2O4 |
| Molecular Weight | 328.36 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
N,N'-((ethane-1,2-diylbis(oxy))bis(3,1-phenylene))diacetamide (CAS 67499-50-7) is a high-purity analytical reference standard with the molecular formula C18H20N2O4 and a molecular weight of 328.36 g/mol.
N,N'-((ethane-1,2-diylbis(oxy))bis(3,1-phenylene))diacetamide (C18H20N2O4) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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), N,N'-((ethane-1,2-diylbis(oxy))bis(3,1-phenylene))diacetamide 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 | C18H20N2O4 |
| Molecular Weight | 328.36 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 DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1976 |
| Nitrogen Atoms | 2 |
Recommended Standards
- N-(2-Oxo-3,3-diphenylindolin-1-yl)formamide (CAS 61458-27-3)
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- N-(2-Benzylbenzo[d]oxazol-5-yl)benzamide (CAS 590393-83-2)
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- Semaglutide impurity 237 (CAS CATO-C4X-2226237)
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