5-Iodothiophene-3-carboxylic acid CAS 18895-01-7
| CAS No. | 18895-01-7 |
| Molecular Formula | C5H3IO2S |
| Molecular Weight | 254.05 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, iodine substitution, 5-Iodothiophene-3-carboxylic acid is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 254.05 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
CATO supplies 5-Iodothiophene-3-carboxylic acid (CAS 18895-01-7), a certified reference material (molecular formula C5H3IO2S, MW 254.05 g/mol) for analytical method development and quality control.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 5-Iodothiophene-3-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 | 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.) | 1962 |
| Halogen Content | I-containing |
| Sulfur Atoms | 1 |
Related Iodothiophene Standards
- 2-Iodothiophene-3-carboxylic acid (CAS 18895-00-6)
- 3-Iodothiophene-2-carboxylic Acid (CAS 60166-84-9)
- 5-Iodothiophene-2-carboxylic acid (CAS 60166-85-0)
- 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
- (2-Bromo-5-(trifluoromethyl)phenyl)methanamine (CAS 771582-26-4)
- 2-(4-Bromo-3-fluorophenyl)-2,2-difluoroethanamine (CAS 1823995-20-5)
- (3,5-Di(1H-imidazol-1-yl)phenyl)boronic acid (CAS 2225180-01-6)
- 3-Bromo-2-ethyl-5-(trifluoromethyl)pyridine (CAS 1823375-76-3)
- (5R,7R)-4-Chloro-5-methyl-6,7-dihydro-5H-cyclopenta[d]pyrimidin-7-ol (CAS 1932568-86-9)
- (S)-1-ethylpiperidin-3-amine (CAS 1149384-34-8)
- Methyl 3-methyl-[5,5'-biisoxazole]-4-carboxylate (CAS 175277-13-1)
- 2,4-Dichloro-4'-(difluoromethoxy)-2'-fluoro-1,1'-biphenyl (CAS 1361765-52-7)
- tert-Butyl 5-methylpicolinate (CAS 1383454-97-4)
- 3-Amino-3-(1-ethyl-1h-imidazol-5-yl)propan-1-ol (CAS 1482342-78-8)
- 4-(1-Acetylpiperazin-2-yl)benzoic acid (CAS 1316219-81-4)
- 4-tert-Butyl-3-fluoro-4-methoxybenzophenone (CAS 951886-09-2)
- 2-(3,4-Dihydroisoquinolin-2(1h)-yl)propanoic acid (CAS 938350-35-7)
- Semaglutide impurity 267 (CAS CATO-C4X-2226267)
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