3-(Thiophen-2-yl)prop-2-ynoic acid CAS 4843-44-1
| CAS No. | 4843-44-1 |
| Molecular Formula | C7H4O2S |
| Molecular Weight | 152.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 3-(Thiophen-2-yl)prop-2-ynoic 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.
CATO supplies 3-(Thiophen-2-yl)prop-2-ynoic acid (CAS 4843-44-1), a certified reference material (molecular formula C7H4O2S, MW 152.17 g/mol) for analytical method development and quality control.
3-(Thiophen-2-yl)prop-2-ynoic acid (C7H4O2S) 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 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).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
Physical & Chemical Properties
| Molecular Formula | C7H4O2S |
| Molecular Weight | 152.17 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Sulfur Atoms | 1 |
Related Thiophen Standards
- 3-(Thiophen-3-yl)propiolic acid (CAS 1041178-28-2)
- 2-(Thiophen-2-yl)-1,3,4-oxadiazole (CAS 35403-88-4)
- 5-(Thiophen-3-yl)-2h-1,2,3,4-tetrazole (CAS 59918-86-4)
- (E)-4-(thiophen-3-yl)but-3-en-2-one (CAS 123293-62-9)
- 1-(Thiophen-3-yl)but-3-yn-1-ol (CAS 1249082-10-7)
- (E)-1-(Thiophen-3-yl)but-2-en-1-one (CAS 1308249-57-1)
- (E)-1-(Thiophen-2-yl)but-2-en-1-one (CAS 13196-29-7)
- 3-(Thiophen-2-yl)cyclobutan-1-one (CAS 1533786-59-2)
Recommended Standards
- 3-(4-Fluorophenyl)prop-2-en-1-ol (CAS 7361-55-9)
- 3,4-Dihydroxytetrahydrothiophene 1,1-dioxide (CAS 33967-48-5)
- 3-(4-fluorophenyl)oxetane (CAS 921193-56-8)
- 3’-Fluoropropiophenone (CAS 455-67-4)
- 3-bromo-4-cyanobenzene-1-sulfonamide (CAS 1261726-19-5)
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- 4-Bromobenzyl (4,6-dimethyl-3-(1H-pyrrol-1-yl)thieno[2,3-b]pyridin-2-yl)carbamate (CAS 672950-52-6)
- 1-[6-(morpholin-4-yl)pyrimidin-4-yl]piperidin-3-amine (CAS 1354963-45-3)
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- 5-Chloro-2-methyl-1H-pyrrolo[2,3-c]pyridine (CAS 905455-16-5)
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