N,N'-(Oxybis(ethane-2,1-diyl))bis(3-(2,5-dioxo-2,5-dihydro-1H-pyrrol-1-yl)propanamide) CAS 1260092-49-6
| CAS No. | 1260092-49-6 |
| Molecular Formula | C18H22N4O7 |
| Molecular Weight | 406.39 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.
N,N'-(Oxybis(ethane-2,1-diyl))bis(3-(2,5-dioxo-2,5-dihydro-1H-pyrrol-1-yl)propanamide) (CAS 1260092-49-6) is a high-purity analytical reference standard with the molecular formula C18H22N4O7 and a molecular weight of 406.39 g/mol.
N,N'-(Oxybis(ethane-2,1-diyl))bis(3-(2,5-dioxo-2,5-dihydro-1H-pyrrol-1-yl)propanamide) (C18H22N4O7) 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C18H22N4O7 |
| Molecular Weight | 406.39 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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 |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Nitrogen Atoms | 4 |
Recommended Standards
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- 5-Ethyl-1,3-thiazole-2-carbaldehyde (CAS 339989-68-3)
- (4-Chlorobenzyl)(phenyl)sulfane (CAS 7693-30-3)
- 3,5-Dichloro-2,4,6-trifluoro-benzonitrile (CAS 31881-89-7)
- 2-Bromo-n-(2,2,2-trifluoroethyl)acetamide (CAS 124300-00-1)
- 4-Ethyl-1-methyl-3-(3-methylfuran-2-yl)-1h-pyrazol-5-amine (CAS 1156897-99-2)
- (5-Bromobenzofuran-3-yl)methanol (CAS 137242-42-3)
- Semaglutide Impurity 162 (x TFA Salt) (CAS CATO-C4X-2226162)
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