3-(Thiophen-2-yl)but-2-enoic acid CAS 148378-70-5
| CAS No. | 148378-70-5 |
| Molecular Formula | C8H8O2S |
| Molecular Weight | 168.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 3-(Thiophen-2-yl)but-2-enoic acid is closely related to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies 3-(Thiophen-2-yl)but-2-enoic acid (CAS 148378-70-5), a certified reference material (molecular formula C8H8O2S, MW 168.21 g/mol) for analytical method development and quality control.
Owing to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, 3-(Thiophen-2-yl)but-2-enoic acid is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 168.21 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).
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), 3-(Thiophen-2-yl)but-2-enoic 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 | C8H8O2S |
| Molecular Weight | 168.21 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1999 |
| Sulfur Atoms | 1 |
Related Thiophen Standards
- (E)-3-(Thiophen-2-yl)but-2-enoic acid (CAS 102724-21-0)
- 2-(Thiophen-3-yl)cyclopropane-1-carboxylic acid (CAS 1157137-71-7)
- 3-(Thiophen-3-yl)but-2-enoic acid (CAS 1251526-81-4)
- Methyl 3-(thiophen-3-yl)acrylate (CAS 135835-43-7)
- 1-(Thiophen-3-yl)butane-1,2-dione (CAS 1421479-06-2)
- 1-(Thiophen-3-yl)cyclopropane-1-carboxylic acid (CAS 162960-00-1)
- 1-(Thiophen-3-yl)butane-1,3-dione (CAS 3115-63-7)
- 2-(Thiophen-2-yl)cyclopropane-1-carboxylic acid (CAS 90111-23-2)
Recommended Standards
- 3-(5-Methyl-2-thienyl)-2-propenoic acid (CAS 14770-88-8)
- 3-(3-Fluorophenyl)butan-2-ol (CAS 1512312-05-8)
- 3-Ethyl Adenine-d5 (2% d0) (CAS 147028-85-1)
- 5-Cyclopropylthiophene-3-carboxylic acid (CAS 1518721-51-1)
- Methyl (2Z)-2-[2-(2,4-dimethylphenyl)hydrazin-1-ylidene]-3-oxobutanoate (CAS 339018-14-3)
- 2-(Pyridin-4-yl)-6-(trifluoromethyl)-1H-benzo[d]imidazole (CAS 91437-89-7)
- (S)-cyclopropyl(2-methyl-3-(trifluoromethyl)phenyl)methanamine (CAS 1213844-52-0)
- Methyl 4-amino-2-bromo-6-methoxybenzoate (CAS 1427398-95-5)
- benZyl 5-nitrofuran-2-carboxylate (CAS 22427-65-2)
- (R)-(((2S,3S,4S,5S)-D-Sofosbuvir Isomer (CAS CATO-C4X-105244)
- Erlotinib Impurity 116 (CAS 15411-43-5)
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- Methyl N-(4-chloro-3-(trifluoromethyl)phenyl)-N-tosylglycinate (CAS 592471-09-5)
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