4,5,6,7-Tetrahydrobenzo[b]thiophene-3-carbonitrile CAS 95461-20-4
| CAS No. | 95461-20-4 |
| Molecular Formula | C9H9NS |
| Molecular Weight | 163.24 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.
CATO supplies 4,5,6,7-Tetrahydrobenzo[b]thiophene-3-carbonitrile (CAS 95461-20-4), a certified reference material (molecular formula C9H9NS, MW 163.24 g/mol) for analytical method development and quality control.
Based on its molecular formula C9H9NS, 4,5,6,7-Tetrahydrobenzo[b]thiophene-3-carbonitrile contains a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 163.24 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
As a certified reference material (CRM), 4,5,6,7-Tetrahydrobenzo[b]thiophene-3-carbonitrile 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 | C9H9NS |
| Molecular Weight | 163.24 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1984 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Tetrahydrobenzo Standards
- 4,5,6,7-Tetrahydrobenzo[b]thiophene-2-carbonitrile (CAS 57021-54-2)
- 6-Methyl-2,3,4,5-tetrahydrobenzo[b][1,4]oxazepine (CAS 1278416-43-5)
- (R)-2,3,4,5-tetrahydrobenzo[b]oxepin-5-amine (CAS 1567915-72-3)
- 7-Methyl-1,2,3,5-tetrahydrobenzo[e][1,4]oxazepine (CAS 51585-35-4)
- 2,3,4,5-Tetrahydrobenzo[b]oxepin-7-ol (CAS 32337-93-2)
- 1,3,5,7-Tetrahydrobenzo[1,2-c:4,5-c']difuran (CAS 120512-90-5)
- 1,2,3,4-tetrahydrobenzo(e)(1,4)diazepin-5-one (CAS 28544-83-4)
- 2,3,5,6-Tetrahydrobenzo[1,2-b:5,4-b']difuran (CAS 57052-75-2)
Recommended Standards
- 4,5-Dimethylbenzo[d]thiazole, 97% (CAS 346465-91-6)
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- 4-(Methylsulfonyl)piperidine (CAS 290328-55-1)
- 2-(4-(5,5-Dimethyl-1,3,2-dioxaborinan-2-yl)phenyl)acetonitrile (CAS 905966-41-8)
- 4-Hydroxy-2-oxo-1,2-dihydroquinoline-6-carbonitrile (CAS 2091610-75-0)
- Ethyl 2-(3,3-difluorocyclohexyl)acetate (CAS 1694540-47-0)
- (R)-2-(3,4-DIchlorophenyl)thiazolidine-4-carboxylic acid (CAS 103261-10-5)
- 3-Bromo-5-(1h-pyrazol-1-yl)pyridine (CAS 1209458-66-1)
- N-Cyclobutylpyridin-4-amine (CAS 1250507-98-2)
- 6-(Benzo[b]thiophen-2-yl)-1H-indazole (CAS 885272-15-1)
- 4-(Phenylthio)pyridine (CAS 33399-48-3)
- 2,3-Dimethyl-1H-indol-7-amine (CAS 101832-73-9)
- Tirzepatide Impurity 51 (CAS CATO-C4X-324051)
Why CATO?
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