4-Methoxythiophene-3-carboxylic Acid CAS 71050-40-3
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 71050-40-3 |
| Molecular Formula | C6H6O3S |
| Molecular Weight | 158.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Methoxythiophene-3-carboxylic Acid (CAS 71050-40-3) is a pharmaceutical standards certified reference material from CATO. Molecular formula: C6H6O3S. Molecular weight: 158.18 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C6H6O3S |
| Molecular Weight | 158.18 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| 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.) | 1977 |
| Sulfur Atoms | 1 |
Related Methoxythiophene Standards
- 2-Methoxythiophene-3-carboxylic acid (CAS 71154-29-5)
- 3-Methoxythiophene-2-carboxylic acid (CAS 60166-83-8)
- 4-Methoxythiophene-2-carboxylic Acid (CAS 77133-27-8)
- 4-Methoxythiophene-2-boronic acid (CAS 1321901-82-9)
- 3-Methoxythiophene-2-boronic acid (CAS 162607-22-9)
- (E)-3-methoxythiophene-2-carbaldehyde oxime (CAS 1824827-05-5)
- 3-Methoxythiophene-2-carboxamide (CAS 78031-17-1)
- 4-Methoxythiophene-3-carboxamide (CAS 65369-29-1)
Recommended Standards
- 4-Methyl-1,2,3-thiadiazole-5-carbohydrazide (CAS 75423-15-3)
- 4-Mercapto-1H-imidazole-5-carbohydrazide (CAS 58413-35-7)
- 4-Methyl-3-nitrothiophen-2-amine (CAS 80313-10-6)
- N6-Benzoyl-2'-o-methyl-adenosine (CAS 85079-00-1)
- 1,3-di-tert-butyl cyclohexane-1,3-dicarboxylate (CAS 220179-70-4)
- 5-(4-Aminophenoxy)picolinic acid dihydrochloride (CAS 72133-30-3)
- Rimegepant Impurity 17 (CAS 1190363-50-8)
- Bortezomib(Trimeric Boroxine Form) (CAS 390800-88-1)
- (6-(tertButoxycarbonyl)-5,6,7,8-tetrahydro-1,6-naphthyridin-3-yl)boronic acid (CAS 2408429-82-1)
- Peptide WE-14 (CAS 115136-18-0)
Why CATO?
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