Methyl 3-Ethoxythiophene-2-carboxylate CAS 139926-22-0
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 139926-22-0 |
| Molecular Formula | C8H10O3S |
| Molecular Weight | 186.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Methyl 3-Ethoxythiophene-2-carboxylate (CAS 139926-22-0) 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.) | 1996 |
| Sulfur Atoms | 1 |
Related Methyl Standards
- Methyl 4-ethoxythiophene-2-carboxylate (CAS 1707391-85-2)
- 3-Ethoxythiophene-2-carbohydrazide (CAS 175137-40-3)
- Methyl 4-ethoxythiophene-3-carboxylate (CAS 1823338-68-6)
- 3-Ethoxythiophene-2-carbonyl chloride (CAS 139926-24-2)
- 4-ethoxythiophene-3-carboxylic acid (CAS 70438-00-5)
- Ethyl 4-ethoxythiophene-3-carboxylate (CAS 70437-99-9)
- 3-Ethoxythiophene-2-carboxylic acid (CAS 139926-23-1)
- 4-Ethoxythiophene-2-carboxylic acid (CAS 917980-53-1)
Recommended Standards
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- 4-[(2-Iodo-5,5-dimethyl-3-oxo-1-cyclohexenyl)amino]benzenecarboxylic acid (CAS 1023484-19-6)
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- 1-(2,4-Difluorophenyl)cyclopropane-1-methanamine (CAS 1340550-61-9)
- 3-Chloro-N-[5-(5-(trifluoromethyl)pyridin-2-yl)--[1,2,4]oxadiazol-3-ylmethyl]benzamide (CAS 1311278-49-5)
- 6-fluoro-3-iodo-1H-indazole (CAS 885522-07-6)
- Semaglutide impurity 93 (CAS CATO-C4X-222693)
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