3,4-Dimethylthiophene-2,5-dicarboxylic acid CAS 19799-13-4
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 19799-13-4 |
| Molecular Formula | C8H8O4S |
| Molecular Weight | 200.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Order 3,4-Dimethylthiophene-2,5-dicarboxylic acid (CAS 19799-13-4) pharmaceutical standards reference standard from CATO: ISO 17034 accredited producer, 130,000+ catalog items in stock. Molecular formula: C8H8O4S. Molecular weight: 200.21 g/mol. COA included with every batch.
Physical & Chemical Properties
| Molecular Formula | C8H8O4S |
| Molecular Weight | 200.21 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
| Sulfur Atoms | 1 |
Related Dimethylthiophene Standards
- Dimethylthiophene-3,4-dicarboxylic acid (CAS 99595-92-3)
- 4,5-Dimethylthiophene-2-sulfonamide (CAS 140646-53-3)
- 2,5-Dimethylthiophene-3-sulfonamide (CAS 140646-60-2)
- 3,5-dimethylthiophene-2-sulfonamide (CAS 1519966-29-0)
- 2,4-Dimethylthiophene-3-sulfonamide (CAS 208775-25-1)
- N,5-dimethylthiophene-2-sulfonamide (CAS 61714-51-0)
- 3,4-Dimethylthiophene-2-sulfonyl chloride (CAS 1227608-07-2)
- 3,5-dimethylthiophene-2-sulfonyl chloride (CAS 1314938-98-1)
Recommended Standards
- 4'-Fluoro-[1,1'-biphenyl]-2-carbaldehyde (CAS 192863-46-0)
- [1,1'-Biphenyl]-4-carbonyl fluoride (CAS 2714-87-6)
- 2-Fluoro-4-methoxy-3-(propan-2-yloxy)phenol (CAS 1881329-22-1)
- 1-Boc-5-(methoxycarbonyl)piperidine-2-carboxylic Acid (CAS 1416371-93-1)
- Methyl 3-amino-3-(4-ethylphenyl)propanoate (CAS 889945-11-3)
- 2,4-dichloro-6,8-difluoro-quinazoline (CAS 1598138-90-9)
- 7-Bromo-1-benzofuran-5-carboxylic acid (CAS 286836-25-7)
- 5-Chloropyrido[3,4-b]pyrazin-2(1H)-one (CAS 1600511-79-2)
- 1-methyl-4-(piperazin-1-ylsulfonyl)piperazine (CAS 933038-72-3)
- Semaglutide impurity 108 (CAS CATO-C4X-2226108)
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 13829788188 / jacky.chen@cato-chem.com