Ethyl 4-methoxythiophene-3-carboxylate CAS 20946-39-8
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 20946-39-8 |
| Molecular Formula | C8H10O3S |
| Molecular Weight | 186.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Ethyl 4-methoxythiophene-3-carboxylate (CAS 20946-39-8) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C8H10O3S. Molecular weight: 186.23 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C8H10O3S |
| Molecular Weight | 186.23 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
| Sulfur Atoms | 1 |
Related Ethyl Standards
- 3-Methoxythiophene-2-sulfonamide (CAS 1394041-28-1)
- 5-Methoxythiophene-2-sulfonamide (CAS 140646-38-4)
- 4-Methoxythiophene-2-sulfonamide (CAS 142294-60-8)
- 3-Methoxythiophene-2-carbonyl chloride (CAS 54450-14-5)
- 4-Methoxythiophene-3-carbonyl chloride (CAS 224649-28-9)
- 4-Methoxythiophene-3-carbohydrazide (CAS 125605-39-2)
- Methyl 3-methoxythiophene-2-carboxylate (CAS 62353-75-7)
- methyl 4-methoxythiophene-2-carboxylate (CAS 5118-05-8)
Recommended Standards
- Ethyl 4-hydroxy-2-methylthiophene-3-carboxylate (CAS 2158-82-9)
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- ethyl 4-amino-2-methyl-1,3-thiazole-5-carboxylate (CAS 278183-12-3)
- 1-Cyclopropyl-5-(2-hydroxy-5-methylbenzoyl)-2-oxo-1,2-dihydropyridine-3-carbonitrile (CAS 554407-87-3)
- 2-(2,4-Dimethoxyphenyl)-2-(piperidin-1-yl)ethan-1-amine (CAS 928001-37-0)
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- 1-Phenylpentadecan-1-one (CAS 4669-04-9)
- (Perchloro-1,4-phenylene)dimethanamine dihydrochloride (CAS 882490-82-6)
- 6-Acetyl-1H,3H-benzo[de]isochromene-1,3-dione (CAS 1146-72-1)
- Acetyl Tetrapeptide-5 (CAS 820959-17-9)
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