5-Chloro-3-(difluoromethoxy)thiophene-2-carboxylic acid CAS 1708079-45-1
| CAS No. | 1708079-45-1 |
| Molecular Formula | C6H3ClF2O3S |
| Molecular Weight | 228.60 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
5-Chloro-3-(difluoromethoxy)thiophene-2-carboxylic acid (CAS 1708079-45-1), molecular formula C6H3ClF2O3S and molecular weight 228.60 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C6H3ClF2O3S, 5-Chloro-3-(difluoromethoxy)thiophene-2-carboxylic acid contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 228.60 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO manufactures 5-Chloro-3-(difluoromethoxy)thiophene-2-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.
Physical & Chemical Properties
| Molecular Formula | C6H3ClF2O3S |
| Molecular Weight | 228.60 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1994 |
| Halogen Content | F/Cl-containing |
| Sulfur Atoms | 1 |
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- Semaglutide impurity 01 (CAS 1998701-31-7)
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