4,5-Dichlorothiophene-3-carboxylic acid CAS 123418-70-2
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 123418-70-2 |
| Molecular Formula | C5H2Cl2O2S |
| Molecular Weight | 197.04 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 4,5-Dichlorothiophene-3-carboxylic acid (CAS 123418-70-2), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C5H2Cl2O2S. Molecular weight: 197.04 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C5H2Cl2O2S |
| Molecular Weight | 197.04 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1992 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Dichlorothiophene Standards
- 2,4-Dichlorothiophene-3-carboxylic acid (CAS 1934940-61-0)
- 3-Acetyl-2,5-dichlorothiophene (CAS 36157-40-1)
- 2,5-dichlorothiophene-3-carbaldehyde (CAS 61200-60-0)
- 3,4-Dichlorothiophene 1,1-dioxide (CAS 52819-14-4)
- 3,5-Dichlorothiophene-2,4-dicarbaldehyde (CAS 1823800-83-4)
- 2,5-Dichlorothiophene-3,4-dicarbaldehyde (CAS 55581-76-5)
- 4,5-Dichlorothiophene-2,3-dicarbaldehyde (CAS 89465-82-7)
- Methyl 2,5-dichlorothiophene-3-carboxylate (CAS 145129-54-0)
Recommended Standards
- (E)-3-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)acrylamide (CAS 1228646-19-2)
- 2,5-dichlorothiazole-4-carboxamide (CAS 127426-27-1)
- Flurbiprofen Impurity 74 (CAS CATO-C4X-144474)
- Methyl 4-(2,5-difluorophenyl)-2,4-dioxobutanoate (CAS 175711-74-7)
- N-(Thiazol-2-yl)-5-((m-tolyloxy)methyl)furan-2-carboxamide (CAS 878716-43-9)
- 1794905-25-1 Acetanthranil-d3 (CAS 1794905-25-1)
- 3,3-difluoro-5-nitro-2,3-dihydro-1H-indol-2-one (CAS 197067-34-8)
- 4-(4-Methylpiperazin-1-yl)benzothioamide (CAS 229970-90-5)
- 1-(5-(4-Amino-2-methoxyphenyl)furan-2-yl)ethanone (CAS 886494-54-8)
- Semaglutide impurity 100 (CAS CATO-C4X-2226100)
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