Benzo[b]thiophen-5-yl acetate CAS 20532-31-4
| CAS No. | 20532-31-4 |
| Molecular Formula | C10H8O2S |
| Molecular Weight | 192.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Benzo[b]thiophen-5-yl acetate (CAS 20532-31-4) is a high-purity analytical reference standard with the molecular formula C10H8O2S and a molecular weight of 192.23 g/mol.
The molecular framework of Benzo[b]thiophen-5-yl acetate (C10H8O2S) is characterized by a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), 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.
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 | C10H8O2S |
| Molecular Weight | 192.23 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
| Sulfur Atoms | 1 |
Related Benzo Standards
- Methyl benzo[b]thiophene-7-carboxylate (CAS 110449-94-0)
- 2-Benzo[b]thiophen-3-ylacetic Acid (CAS 1131-09-5)
- 1-(Benzo[b]thiophen-2-yl)-2-hydroxyethanone (CAS 135242-07-8)
- Benzo[b]thiophene-6-carboxylic acid, methyl ester (CAS 1423-65-0)
- Benzo[b]thiophen-3-yl Acetate (CAS 24434-82-0)
- Benzo[b]thiophene-2-acetic Acid (CAS 75894-07-4)
- 2H-Benzo[f]isoindole-1-carbonitrile (CAS 103836-45-9)
- 2-(1-(1H-Benzo[d]imidazol-2-yl)hydrazinyl)ethanol (CAS 131882-24-1)
Recommended Standards
- 6-Methyl-1-benzothiophene-3-carboxylic acid (CAS 82787-84-6)
- Cyclopentyl(3-fluorophenyl)methanone (CAS 898791-46-3)
- 6-Methoxybenzo[b]thiophene-3-carbaldehyde (CAS 896722-64-8)
- Cyclopentyl(4-fluorophenyl)methanone (CAS 31545-25-2)
- 2-Chloro-3-(2-thiomethylphenyl)propiophenone (CAS 898780-16-0)
- 2-(4-Ethoxyphenyl)-5-(1-ethyl-2-oxoindolin-3-ylidene)thiazolo[3,2-b][1,2,4]triazol-6(5H)-one (CAS 538340-78-2)
- 5-((3,5-Dimethyl-4-nitro-1h-pyrazol-1-yl)methyl)thiophene-2-carboxylic acid (CAS 1006955-28-7)
- 2-Chloro-4,5-dimethylbenzonitrile (CAS 1242339-03-2)
- 4-(3-Bromophenyl)-1,2-dimethyl-1H-imidazol-5-amine (CAS 1251115-00-0)
- 2-Methyl-5-quinoxalin-2-yl-phenylamine (CAS 433318-46-8)
- 4-(4-(3-Nitrophenoxy)butoxy)benzene-1-sulfonyl fluoride (CAS 31185-42-9)
- Sertraline Impurity 28 (CAS CATO-C4X-134428)
- 5-Ethyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)naphthalen-2-ol (CAS 2757096-79-8)
- Semaglutide impurity 206 (CAS CATO-C4X-2226206)
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