(2S,3S)-2,3-bis(4-methoxybenzoyloxy)butanedioic acid; bis((5R)-1-benzyl-5-methyl-1,4-diazepane) CAS 1644457-23-7
| CAS No. | 1644457-23-7 |
| Molecular Formula | C20H18O10 |
| Molecular Weight | N/A |
| 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.
(2S,3S)-2,3-bis(4-methoxybenzoyloxy)butanedioic acid; bis((5R)-1-benzyl-5-methyl-1,4-diazepane) (CAS 1644457-23-7) is a high-purity analytical reference standard with the molecular formula C20H18O10C13H20N2 and a molecular weight of 622.67 g/mol.
The molecular framework of (2S,3S)-2,3-bis(4-methoxybenzoyloxy)butanedioic acid; bis((5R)-1-benzyl-5-methyl-1,4-diazepane) (C20H18O10C13H20N2) is characterized by a nitrogen-containing heterocyclic scaffold, 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. 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).
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 | C20H18O10 2*C13H20N2 |
| Molecular Weight | 622.67 g/mol |
| 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) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1993 |
| Nitrogen Atoms | 2 |
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