2-[7-(Diethylamino)-2-oxo-2H-1-benzopyran-3-yl]-5-benzoxazolesulfonic Acid Sodium Salt CAS 93859-23-5
| CAS No. | 93859-23-5 |
| Molecular Formula | C20H17N2O6S |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 436.41 g/mol gives 2-[7-(Diethylamino)-2-oxo-2H-1-benzopyran-3-yl]-5-benzoxazolesulfonic Acid Sodium Salt distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
2-[7-(Diethylamino)-2-oxo-2H-1-benzopyran-3-yl]-5-benzoxazolesulfonic Acid Sodium Salt (CAS 93859-23-5), molecular formula C20H17N2O6SNa and molecular weight 436.41 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 2-[7-(Diethylamino)-2-oxo-2H-1-benzopyran-3-yl]-5-benzoxazolesulfonic Acid Sodium Salt (C20H17N2O6SNa) is characterized by a flavonoid core, an amide group, a sulfone 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. 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 | C20H17N2O6S Na |
| Molecular Weight | 436.41 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) | 13.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1983 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Diethylamino Standards
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Recommended Standards
- Lactose Heptasulfate (CAS CATO-C3D-262596)
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- Ethyl 4-oxo-2-(trifluoromethyl)cyclohexane-1-carboxylate (CAS 2137936-72-0)
- (S)-2-[3-(6-Dimethylamino-4-trifluoromethyl-pyridin-2-yl)-phenyl]-thiazolidine-4-carboxylic acid (CAS 1311275-23-6)
- (S)-2-(3-(diisopropylamino)-1-phenylpropyl)-4-(hydroxymethyl)phenol (CAS 260389-90-0)
- 1-(1-(Bromomethyl)cyclopropyl)-4-methoxybenzene (CAS 958027-81-1)
- 1,2,6,7-DIEPOXYHEPTANE (CAS 4247-19-2)
- 1-(4-Methylcyclohexyl)prop-2-en-1-one (CAS 91056-31-4)
- Semaglutide impurity 43 (CAS CATO-C4X-222643)
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