4-aminobenzothiophene-2-carboxylic acid CAS 478076-38-9
| CAS No. | 478076-38-9 |
| Molecular Formula | C9H15NO2S |
| Molecular Weight | 201.29 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 4-aminobenzothiophene-2-carboxylic acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
4-aminobenzothiophene-2-carboxylic acid (CAS 478076-38-9), molecular formula C9H15NO2S and molecular weight 201.29 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 4-aminobenzothiophene-2-carboxylic acid (C9H15NO2S) is characterized by an amide group, a sulfone group, a carboxylic acid 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C9H15NO2S |
| Molecular Weight | 201.29 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related aminobenzothiophene Standards
Recommended Standards
- 4-(Benzylthio)pyridine (CAS 51290-78-9)
- 4-aminothieno[3,2-c]pyridine-7-carboxamide (CAS 55040-50-1)
- 4-(2-Methoxyethyl)-5-propyl-4h-1,2,4-triazole-3-thiol (CAS 841221-90-7)
- 4-ethyl-4H-thieno[3,2-b]pyrrole-5-carboxylic acid (CAS 924643-45-8)
- 2-(Benzoyloxy)-3-carboxy-N,N,N-trimethyl-1-propanaminium Inner Salt (CAS 105450-08-6)
- 2-Oxo-N-(3-(quinolin-8-yloxy)propyl)-2H-pyran-5-carboxamide (CAS 1235233-06-3)
- 2-(2-Chloro-[3,4'-bipyridin]-4-yl)acetonitrile (CAS 1227587-79-2)
- 5-Methyl-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzonitrile (CAS 1116093-68-5)
- tert-Butyl N-[trans-3-fluoropiperidin-4-yl]carbamate (CAS 1268520-95-1)
- 3-Fluoro-4-(3,3,3-trifluoropropoxy)benzaldehyde (CAS 1554106-29-4)
- lithium(1+) ion 2-(3-butyl-1,2,4-oxadiazol-5-yl)acetate (CAS 1955514-46-1)
- 1-methyl-3-(piperazin-1-yl)-1,2-dihydropyrazin-2-one (CAS 1343640-83-4)
- 1,12-Bis(diphenylphosphino)-6,7-dihydrodibenzo[e,g][1,4]dioxocine (CAS 905714-08-1)
- Des-Ser32-Tirzepatide (CAS CATO-CPTD788942)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com