7-amino-1-benzofuran-2-carboxylic acid hydrochloride CAS 1171670-40-8
| CAS No. | 1171670-40-8 |
| Molecular Formula | C9H7NO3 |
| 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 213.62 g/mol gives 7-amino-1-benzofuran-2-carboxylic acid hydrochloride distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
7-amino-1-benzofuran-2-carboxylic acid hydrochloride (CAS 1171670-40-8), molecular formula C9H7NO3HCl and molecular weight 213.62 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 7-amino-1-benzofuran-2-carboxylic acid hydrochloride (C9H7NO3HCl) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 213.62 g/mol, it falls into the medium-molecular-weight range. 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 | C9H7NO3 HCl |
| Molecular Weight | 213.62 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
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- 1-(((9H-Fluoren-9-yl)methoxy)carbonyl)-4-methoxypiperidine-4-carboxylic acid (CAS 1879010-83-9)
- 2-(2-Oxo-2,3-dihydro-1h-pyrido[2,3-b][1,4]thiazin-1-yl)acetic acid (CAS 100637-46-5)
- tert-Butyl 2-(4-amino-3-chlorophenyl)morpholine-4-carboxylate (CAS 1400997-62-7)
- Insulin Degludec impurity 4 (CAS CATO-C4X-21574)
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