5-Iodothiophene-2-carboxylic acid CAS 60166-85-0
| CAS No. | 60166-85-0 |
| Molecular Formula | C5H3IO2S |
| Molecular Weight | 254.05 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-Iodothiophene-2-carboxylic acid (CAS 60166-85-0) is a high-purity analytical reference standard with the molecular formula C5H3IO2S and a molecular weight of 254.05 g/mol.
Based on its molecular formula C5H3IO2S, 5-Iodothiophene-2-carboxylic acid contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, iodine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 254.05 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 5-Iodothiophene-2-carboxylic acid meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C5H3IO2S |
| Molecular Weight | 254.05 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, 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.) | 1974 |
| Halogen Content | I-containing |
| Sulfur Atoms | 1 |
Related Iodothiophene Standards
- 2-Iodothiophene-3-carboxylic acid (CAS 18895-00-6)
- 5-Iodothiophene-3-carboxylic acid (CAS 18895-01-7)
- 3-Iodothiophene-2-carboxylic Acid (CAS 60166-84-9)
- 2-Iodothiophene-3-carboxamide (CAS 18800-06-1)
- 5-Iodothiophene-3-carboxamide (CAS 18800-08-3)
- 3-Butyl-2-iodothiophene (CAS 135598-02-6)
- Methyl 2-iodothiophene-3-carboxylate (CAS 76360-44-6)
- Methyl 3-Iodothiophene-2-carboxylate (CAS 62353-77-9)
Recommended Standards
- 5-Iodothiazole-4-carboxamide (CAS 912640-21-2)
- Iodothiouracil (CAS 5984-97-4)
- 5-Iodothiazole-2-carboxamide (CAS 860646-10-2)
- 8-Bromo-5-fluoroquinoline-2-carbaldehyde (CAS 1067914-59-3)
- 3-Ethoxy-5-(methoxycarbonyl)benzoic acid (CAS 706792-00-9)
- 3-Methyl-5,6-dihydro-2H-pyran-2-one (CAS 72649-02-6)
- Methyl 4-(2-(4-hydroxyphenyl)bicyclo[2.2.1]heptan-2-yl)benzoate (CAS 951671-13-9)
- Methyl 6-nitro-1,4-dihydropyrazolo[4,3-c]pyrazole-3-carboxylate (CAS 161155-33-5)
- 8-(Trifluoromethyl)quinazolin-2-amine (CAS 1258652-66-2)
- 4-(Difluoromethyl)-2-fluorophenol (CAS 1214333-89-7)
- Safinamide Impurity 23 (CAS CATO-C4X-159023)
- 3-(M-tolyl)-1-(2-(trifluoromethyl)phenyl)propan-1-one (CAS 898791-02-1)
- 2-(3,4-Dichlorophenyl)-2-{[2-(dimethylamino)ethyl]amino}acetic acid dihydrochloride (CAS 1311313-88-8)
- Semaglutide impurity 197 (CAS CATO-C4X-2226197)
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