Ethyl 2-amino-4,5-dihydronaphtho[1,2-b]thiophene-3-carboxylate CAS 332159-69-0
| CAS No. | 332159-69-0 |
| Molecular Formula | C15H15NO2S |
| Molecular Weight | 273.35 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
Ethyl 2-amino-4,5-dihydronaphtho[1,2-b]thiophene-3-carboxylate (CAS 332159-69-0), molecular formula C15H15NO2S and molecular weight 273.35 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C15H15NO2S, Ethyl 2-amino-4,5-dihydronaphtho[1,2-b]thiophene-3-carboxylate contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 273.35 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C15H15NO2S |
| Molecular Weight | 273.35 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Ethyl Standards
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- ethyl 3-amino-2,5-dimethyl-4-oxo-3H,4H-thieno[2,3-d]pyrimidine-6-carboxylate (CAS 300573-77-7)
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Recommended Standards
- 6-Phenyl-4-thiomorpholinopyridazin-3(2H)-one (CAS 89868-10-0)
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- methyl 4-hydroxy-6-oxo-7-(propan-2-yl)-6H,7H-thieno[2,3-b]pyridine-5-carboxylate (CAS 869493-47-0)
- 6-Cyclohexyl-8-fluoro-2,3-dimethylquinolin-4-ol (CAS 648942-35-2)
- 7-Chloro-8-fluoro-5-methoxypyrido[4,3-d]pyrimidin-4(3H)-one (CAS 2763159-32-4)
- Methyl 2-iodo-1H-pyrrolo[2,3-c]pyridine-5-carboxylate (CAS 1260383-39-8)
- 2-Amino-2-methyl-n-(1-phenylethyl)pentanamide (CAS 1178936-82-7)
- 2-(Azepan-1-yl)benzonitrile (CAS 72767-22-7)
- bis(6-methyl-1,2-dihydropyridin-2-one), sulfuric acid (CAS 1443981-41-6)
- 5-(Benzyloxy)-6-bromopicolinaldehyde (CAS 1192263-80-1)
- 1-(4-Methyl-1,2,3-thiadiazole-5-carbonyl)piperidine-4-carboxylic acid (CAS 1042796-01-9)
- 2-(3-Hydroxybenzylidene)malononitrile (CAS 7255-96-1)
- 4-(Hydroxymethyl)pyridin-3-ol (CAS 33349-67-6)
- Experimental Allergic Encephalitogenic Peptide (CAS 29705-92-8)
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