Benzo[b]thiophen-3-yl(o-tolyl)methanone CAS 22720-67-8
| CAS No. | 22720-67-8 |
| Molecular Formula | C16H12OS |
| Molecular Weight | 252.33 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 252.33 g/mol gives Benzo[b]thiophen-3-yl(o-tolyl)methanone distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies Benzo[b]thiophen-3-yl(o-tolyl)methanone (CAS 22720-67-8), a certified reference material (molecular formula C16H12OS, MW 252.33 g/mol) for analytical method development and quality control.
Owing to sulfur-containing functionality, a hydroxyl group, an ether linkage, a polycyclic aromatic system, Benzo[b]thiophen-3-yl(o-tolyl)methanone is typically pale yellow to yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 252.33 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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), Benzo[b]thiophen-3-yl(o-tolyl)methanone 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 | C16H12OS |
| Molecular Weight | 252.33 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
| Sulfur Atoms | 1 |
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Recommended Standards
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- 6-Oxo-6-(4-thiomethylphenyl)hexanoic acid (CAS 898765-97-4)
- Ethyl 2-(6-methoxy-2,3-dihydrobenzo[b]thiophen-3-yl)acetate (CAS 905724-73-4)
- 1-(3-Bromopropyl)-2-methoxybenzene (CAS 38011-77-7)
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- (2-Amino-4-(aminomethyl)-5-(difluoromethyl)pyridin-3-yl)methanol (CAS 1805344-41-5)
- 1,2,3,4,5,6-Benzenehexathiol (CAS 62968-45-0)
- 1-Ethyl-4-(pyrrolidin-2-ylmethyl)piperazine oxalate (CAS 1177326-54-3)
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- 4'-Bromospiro[fluorene-9,9'-xanthene] (CAS 1609484-29-8)
- Cyclolinopeptide B (CAS 193139-41-2)
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