1-(3-Aminobenzo[b]thiophen-2-yl)ethanone CAS 34263-61-1
| CAS No. | 34263-61-1 |
| Molecular Formula | C10H9NOS |
| Molecular Weight | 191.25 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.
1-(3-Aminobenzo[b]thiophen-2-yl)ethanone (CAS 34263-61-1), molecular formula C10H9NOS and molecular weight 191.25 g/mol, is a CATO reference standard with documented purity and traceability.
1-(3-Aminobenzo[b]thiophen-2-yl)ethanone (C10H9NOS) contains a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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 | C10H9NOS |
| Molecular Weight | 191.25 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1966 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
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- 2-(4-Oxothieno[3,2-d]pyrimidin-3(4H)-yl)acetic acid (CAS 16290-53-2)
- 3-Amino-4-(4-methyl-1h-pyrazol-1-yl)benzamide (CAS 1182766-09-1)
- 2-[2-(3,5-Dihydroxy-phenyl)-ethyl]-6-methoxy-benzoic acid methyl ester (CAS 365542-96-7)
- 5-Bromo-2-chloro-4-methoxypyrimidine (CAS 57054-92-9)
- 4-fluoro-6-[(hydroxyamino)methylidene]cyclohexa-2,4-dien-1-one 91407-40-8 (CAS 91407-40-8)
- 1-(2-Amino-3-bromo-4-methoxyphenyl)ethanone (CAS 923289-30-9)
- D-Ile27-Tirzepatide (CAS CATO-CPTD788907)
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