Thiophene-3-carboxylic acid 1,1-dioxide CAS 1858240-97-7
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 1858240-97-7 |
| Molecular Formula | C5H4O4S |
| Molecular Weight | 160.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Thiophene-3-carboxylic acid 1,1-dioxide (CAS 1858240-97-7), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C5H4O4S. Molecular weight: 160.15 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C5H4O4S |
| Molecular Weight | 160.15 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 |
| CAS Registry Year (est.) | 1995 |
| Sulfur Atoms | 1 |
Related Thiophene Standards
- Thiophene impurity 6 (CAS CATO-C4X-25476)
- 2,2'-(Thiophene-2,3-diyl)diacetonitrile (CAS 38447-33-5)
- 2,2'-(Thiophene-2,5-diyl)diacetonitrile (CAS 702-22-7)
- 2,2'-(Thiophene-3,4-diyl)diacetonitrile (CAS 38447-32-4)
- Thiophene-3-sulfonamide (CAS 64255-63-6)
- Ethyl thiophene-2-carboxylate (CAS 2810-04-0)
- Ethyl Thiophene-3-carboxylate (CAS 5751-80-4)
- Thiophene-2-sulfonic acid (CAS 79-84-5)
Recommended Standards
- 4-(Hydroxymethyl)-1,2,3-thiadiazole-5-carboxylic acid (CAS 183304-68-9)
- 5-Fluoro-1H-indole-3-carbonitrile (CAS 194490-15-8)
- (2S,4S)-2-Amino-4-methylpentanedioic acid hydrochloride (CAS 160806-12-2)
- 2-(B-Morpholinoethyl)pyridine (CAS 59566-50-6)
- 3-Hydroxy Benzopyrene (CAS 13345-21-6)
- 3-(tert-Butyl)-1-((tetrahydrofuran-2-yl)methyl)-1H-pyrazol-5-ol (CAS 2092711-27-6)
- 2-(2-Chlorobenzamido)-3-hydroxybutanoic acid (CAS 1008206-36-7)
- tert-Butyl 8-iodooctanoate (CAS 179538-24-0)
- 6-Fluoropyrido[2,3-d]pyrimidine-2,4-diol (CAS 1220518-10-4)
- Tirzepatide Impurity 9 (CAS CATO-C4X-32409)
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