(2E)-3-(5-chlorothiophen-3-yl)prop-2-enoic acid CAS 75754-89-1
| CAS No. | 75754-89-1 |
| Molecular Formula | C7H9ClO2S |
| Molecular Weight | 192.66 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, chlorine substitution, (2E)-3-(5-chlorothiophen-3-yl)prop-2-enoic acid is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 192.66 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).
(2E)-3-(5-chlorothiophen-3-yl)prop-2-enoic acid (CAS 75754-89-1) is a high-purity analytical reference standard with the molecular formula C7H9ClO2S and a molecular weight of 192.66 g/mol.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C7H9ClO2S |
| Molecular Weight | 192.66 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1978 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
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Recommended Standards
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- N,N-Diethyl-3-methylaniline (CAS 91-67-8)
- 7-(Benzyloxy)quinoline-4-carbonitrile (CAS 1630025-67-0)
- 3-{[(4-tert-butylphenyl)methyl]amino}propanoic acid (CAS 926210-23-3)
- 2-(4-Isopropylphenoxy)-2-methyl-3-phenylpropanoic Acid (CAS 789469-67-6)
- N-(4-chlorobenzyl)tetrahydrofuran-3-amine (CAS 1339621-32-7)
- (S)-4-(2-Amino-propyl)-piperazine-1-carboxylic acid tert-butyl ester hydrochloride (CAS 1427203-55-1)
- Rotigotine EP Impurity G (CAS 1422357-33-2)
- Semaglutide impurity 109 (CAS CATO-C4X-2226109)
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