3-Ethynyl-4-methoxythiophene CAS 2367620-31-1
| CAS No. | 2367620-31-1 |
| Molecular Formula | C7H6OS |
| Molecular Weight | 138.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO supplies 3-Ethynyl-4-methoxythiophene (CAS 2367620-31-1), a certified reference material (molecular formula C7H6OS, MW 138.19 g/mol) for analytical method development and quality control.
Structurally, 3-Ethynyl-4-methoxythiophene (C7H6OS) contains sulfur-containing functionality, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 138.19 g/mol, it falls into the low-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), 3-Ethynyl-4-methoxythiophene 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 | C7H6OS |
| Molecular Weight | 138.19 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1999 |
| Sulfur Atoms | 1 |
Related Ethynyl Standards
- 2-Ethynyl-5-methoxythiophene (CAS 878886-76-1)
- 4-ethynyl-3-methyl-1,2-thiazol-5-amine (CAS 851049-24-6)
- 1-Ethynyl-4-fluorobicyclo[2.2.1]heptane (CAS 2287310-81-8)
- 2-Ethynyl-6-fluorospiro[3.3]heptane (CAS 2715119-96-1)
- 1-Ethynyl-2-methylcyclohexan-1-ol (CAS 15564-30-4)
- 1-Ethynyl-1-methoxycyclohexane (CAS 5240-36-8)
- trans--1-Ethynyl-4-methoxycyclohexane (CAS 2472890-09-6)
- 1-ethynyl-2-methoxybenzene 2'-Methoxyphenylacetylene 767-91-9 A9731 (CAS 767-91-9)
Recommended Standards
- 3-Aminopropane-1-sulfonamide (CAS 74494-51-2)
- 3-Methylimidazo[2,1-b]thiazole (CAS 45654-19-1)
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- 4-(Aminomethyl)thiophene-2-carbonitrile (CAS 232280-77-2)
- 1-(3-Methyl-2,3-dihydro-1H-pyrrolizin-5-yl)ethanone (CAS 6225-66-7)
- 4-Fluoro-2-iodobenzo[d]oxazole (CAS 1806521-06-1)
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- 3-Ethyl-5-methyl-1,2-oxazole-4-carboximidamide hydrochloride (CAS 1170453-95-8)
- 2-((Cyclopentyloxy)methyl)pentane-1-sulfonyl chloride (CAS 1491095-59-0)
- Methyl 2-(4-bromo-1H-pyrazol-1-yl)acetate (CAS 1072944-71-8)
- methyl 2-(4-fluorophenyl)-4-quinolinecarboxylate (CAS 327092-77-3)
- Osteogenic Growth Peptide (10-14) (CAS 105250-85-9)
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