4-ethyl-5-methylthiophene-3-carboxylic acid CAS 884497-34-1
| CAS No. | 884497-34-1 |
| Molecular Formula | C8H14O2S |
| Molecular Weight | 174.26 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 4-ethyl-5-methylthiophene-3-carboxylic acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
4-ethyl-5-methylthiophene-3-carboxylic acid (CAS 884497-34-1) is a high-purity analytical reference standard with the molecular formula C8H14O2S and a molecular weight of 174.26 g/mol.
Owing to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, 4-ethyl-5-methylthiophene-3-carboxylic acid is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 174.26 g/mol — guide the selection of appropriate sample preparation and analytical techniques.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C8H14O2S |
| Molecular Weight | 174.26 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) | 2.0 |
| CAS Registry Year (est.) | 1987 |
| Sulfur Atoms | 1 |
Related ethyl Standards
- 5-ethyl-4-methylthiophene-2-carboxylic acid (CAS 40808-25-1)
- 5-Methylthiophene-3-sulfonamide (CAS 1017264-52-6)
- 3-Methylthiophene-2-sulfonamide (CAS 81417-51-8)
- 5-Methylthiophene-2-sulfonamide (CAS 53595-69-0)
- N-methylthiophene-2-sulfonamide (CAS 53442-30-1)
- 3-Methylthiophene-2-sulfonic acid (CAS 1159877-58-3)
- Ethyl 4-methylthiophene-2-carboxylate (CAS 14282-79-2)
- 4-Ethyl-5-methylthiophene-2-carboxylic acid (CAS 154828-65-6)
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Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com