2,3-Dihydro[1,4]dioxino[2,3-c]pyridine-7-carboxylic acid hydrochloride CAS 2169997-52-6
| CAS No. | 2169997-52-6 |
| Molecular Formula | C8H7NO4 |
| 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 217.60 g/mol gives 2,3-Dihydro[1,4]dioxino[2,3-c]pyridine-7-carboxylic acid hydrochloride distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
2,3-Dihydro[1,4]dioxino[2,3-c]pyridine-7-carboxylic acid hydrochloride (CAS 2169997-52-6), molecular formula C8H7NO4HCl and molecular weight 217.60 g/mol, is a CATO reference standard with documented purity and traceability.
2,3-Dihydro[1,4]dioxino[2,3-c]pyridine-7-carboxylic acid hydrochloride (C8H7NO4HCl) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, 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.
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 | C8H7NO4 HCl |
| Molecular Weight | 217.60 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1998 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Dihydro Standards
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Recommended Standards
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- 5-chloro-7-(trifluoromethyl)thieno[3,2-b]pyridine-3-carboxylic acid (CAS 680210-98-4)
- 2-(4-Chlorobenzenesulfonyl)-2-[(2E)-4-oxo-3-phenyl-1,3-thiazolidin-2-ylidene]acetonitrile (CAS 1025578-26-0)
- 2-Ethylbenzofuran-5-amine (CAS 27408-68-0)
- 1-Propanol-<SUP>13</SUP>C<SUB>3</SUB> (CAS 1173020-91-1)
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