3-(2-Thienyl)acrylic Acid CAS 1124-65-8
| CAS No. | 1124-65-8 |
| Molecular Formula | C7H6O2S |
| Molecular Weight | 154.19 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.
3-(2-Thienyl)acrylic Acid (CAS 1124-65-8), molecular formula C7H6O2S and molecular weight 154.19 g/mol, is a CATO reference standard with documented purity and traceability.
3-(2-Thienyl)acrylic Acid (C7H6O2S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C7H6O2S |
| Molecular Weight | 154.19 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.) | 1957 |
| Sulfur Atoms | 1 |
Related Thienyl Standards
- 3-(3-Thienyl)acrylic acid (CAS 1195-52-4)
- [1-(2-thienyl)cyclopropyl]methanol (CAS 1447963-30-5)
- 3-(2-Thienyl)acrylamide (CAS 36650-39-2)
- N-[2-(2-Thienyl)ethyl]formamide (CAS 28783-49-5)
- 2-(3-Thienyl)-1,3-dioxolane (CAS 13250-82-3)
- 3-(3-Thienyl)propanoic Acid (CAS 16378-06-6)
- 2-(2-Thienyl)-1,3-dioxolane (CAS 58268-08-9)
- 3-(2-Thienyl)-1,2,5-oxadiazole (CAS 127219-88-9)
Recommended Standards
- 2-Hydroxypyridine-4-carbothioamide (CAS 1094459-09-2)
- 2-(Methylthio)pyrimidine-4-carboxylic Acid (CAS 1126-44-9)
- 3-Hydroxy-3-(1,3-thiazol-2-yl)propanenitrile (CAS 1094405-17-0)
- 2-Hydroxy-2-(2-methylthiazol-5-yl)acetonitrile (CAS 113732-80-2)
- N-(1-(pyridin-2-yl)ethyl)acetamide (CAS 816417-46-6)
- (R)-N-methyl-1,2,3,4-tetrahydroquinolin-3-amine maleate (CAS 166742-97-8)
- N-((4-allyl-5-thioxo-4,5-dihydro-1H-1,2,4-triazol-3-yl)methyl)-4-chlorobenzenesulfonamide (CAS 338421-81-1)
- (3aR,6R,7aR)-7,7-Dichloro-8,8-dimethylhexahydro-3H-3a,6-methanobenzo[c]isothiazole 2,2-dioxide (CAS 204854-09-1)
- (S)-2-((((9H-Fluoren-9-yl)oxy)carbonyl)amino)pent-4-ynoic acid (CAS 1632296-20-8)
- 2-[4-(4-Methoxyphenyl)-1,3-thiazol-2-yl]-3-phenylacrylonitrile (CAS 332045-71-3)
- Molsidomine EP Impurity D (CAS 4394-85-8)
- Ethyl 7-oxo-7-phenylheptanoate (CAS 112665-41-5)
- Isavuconazole Impurity 28 (CAS 2962831-01-0（free base）)
- D-[Ser]8-Liraglutide (CAS CATO-C4X-199238)
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