3,4-Dimethylthieno[2,3-b]thiophene-2,5-dicarboxylic acid CAS 175202-55-8
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 175202-55-8 |
| Molecular Formula | C10H8O4S2 |
| Molecular Weight | 256.30 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3,4-Dimethylthieno[2,3-b]thiophene-2,5-dicarboxylic acid (CAS 175202-55-8) is a pharmaceutical standards certified reference material from CATO. Molecular formula: C10H8O4S2. Molecular weight: 256.30 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C10H8O4S2 |
| Molecular Weight | 256.30 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2007 |
| Sulfur Atoms | 2 |
Related Dimethylthieno Standards
- 1-(5,6-Dimethylthieno[2,3-d]pyrimidin-4-yl)-1h-1,2,4-triazole-3-carbonitrile (CAS 1011034-36-8)
- 5,7-Dimethylthieno[2,3-b]quinoline-2-carboxylic acid (CAS 333312-10-0)
- 5,8-Dimethylthieno[2,3-b]quinoline-2-carboxylic acid (CAS 333312-09-7)
- 6,8-Dimethylthieno[2,3-b]quinoline-2-carboxylic acid (CAS 462066-84-8)
- 7,8-Dimethylthieno[2,3-b]quinoline-2-carboxylic acid (CAS 333312-08-6)
- 2-({5,6-dimethylthieno[2,3-d]pyrimidin-4-yl}sulfanyl)acetic acid (CAS 296262-16-3)
- 2-({5,6-dimethylthieno[2,3-d]pyrimidin-4-yl}amino)propanoic acid (CAS 955966-34-4)
- 2-((5,6-Dimethylthieno[2,3-d]pyrimidin-4-yl)amino)butan-1-ol (CAS 379246-09-0)
Recommended Standards
- Methyl 4-(benzyloxy)-2-methylbenzoate (CAS 175153-40-9)
- 2-{[(tert-butoxy)carbonyl]amino}-6-cyanohexanoic acid (CAS 177031-12-8)
- N-Benzyl-N'-(4,6-dimethylpyridazin-3-yl)formohydrazide (CAS 17258-16-1)
- Gadobutrol Impurity 40 (CAS 4568-63-2)
- 2-(2,4-Dimethylphenoxy)acetohydrazide (CAS 72293-69-7)
- 2-Chloro-N-(tetrahydro-2H-pyran-4-ylmethyl)acetamide (CAS 1342482-31-8)
- 6-Phenyl-4,5-dihydro-1,2,4-triazin-3(2H)-one (CAS 78831-00-2)
- 2,6-Dichloro-4-((4,5-dihydro-1H-imidazol-2-yl)methyl)aniline (CAS 130759-56-7)
- 4-(Dimethylamino)-3-methylbenzoic acid (CAS 103030-89-3)
- Semaglutide impurity 70 (CAS CATO-C4X-222670)
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