1-Benzothiophene-5-carboxylic acid CAS 2060-64-2
| CAS No. | 2060-64-2 |
| Molecular Formula | C9H6O2S |
| Molecular Weight | 178.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1-Benzothiophene-5-carboxylic acid (CAS 2060-64-2) is a high-purity analytical reference standard with the molecular formula C9H6O2S and a molecular weight of 178.21 g/mol.
Structurally, 1-Benzothiophene-5-carboxylic acid (C9H6O2S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 178.21 g/mol, it falls into the medium-molecular-weight range. 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.
As a certified reference material (CRM), 1-Benzothiophene-5-carboxylic acid meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C9H6O2S |
| Molecular Weight | 178.21 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Sulfur Atoms | 1 |
Related Benzothiophene Standards
- 1-Benzothiophene-5-carboxamide (CAS 1199-25-3)
- 2-Methyl-1-benzothiophene-3-carbaldehyde (CAS 30446-99-2)
- 7-Methyl-1-benzothiophene-3-carbaldehyde (CAS 7312-00-7)
- 3-Methyl-1-benzothiophene-5-carbonitrile (CAS 19404-23-0)
- 2-Methyl-1-benzothiophene-3-carbonitrile (CAS 39812-03-8)
- 3-methyl-1-benzothiophene-2-carbaldehyde (CAS 22053-74-3)
- benzothiophene-6-carboxylic acid (CAS 6179-26-6)
- Benzothiophene 1,1-Dioxide (CAS 825-44-5)
Recommended Standards
- 1,3-Benzoxazole-2-carbothioamide (CAS 4728-27-2)
- 1-ethyl-2-fluoro-5-methyl-1H-1,3-benzodiazole (CAS 2296362-20-2)
- 1-(Benzo[c][1,2,5]thiadiazol-4-yl)ethanone (CAS 933690-90-5)
- 1-Ethyl-5-fluoro-2-methyl-1H-benzo[d]imidazole (CAS 708-34-9)
- 2-((2-Aminopyridin-4-yl)oxy)ethanol (CAS 1313726-72-5)
- [(2-butyl-1-benzofuran-3-yl)methyl](methyl)amine hydrochloride (CAS 1052552-43-8)
- 2-Amino-[1,2,4]triazolo[1,5-a]pyridine-8-carboxylic acid (CAS 1368221-65-1)
- 5-(Hydroxymethyl)-1H-pyrazole-3-carboxamide (CAS 71083-83-5)
- Ethyl 3-cyclopropyl-6-hydroxy-1-(4-methoxyphenyl)-1h-pyrazolo[3,4-b]pyridine-4-carboxylate (CAS 1245807-76-4)
- 3-Cyclopropoxy-4-ethyl-N-methylaniline (CAS 1243402-32-5)
- 1-(1-(5-Nitropyridin-2-yl)-1H-benzo[d]imidazol-2-yl)piperidin-3-ol (CAS 1146080-62-7)
- Hydrazine hydrobromide (CAS 13775-80-9)
- Pitavastatin calcium (CAS 147526-32-7)
- Liraglutide Impurity 5 TFA Salt (CAS CATO-C4X-19925)
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