4-Ethylhex-2-ynoic acid CAS 1339639-69-8
| CAS No. | 1339639-69-8 |
| Molecular Formula | C8H12O2 |
| Molecular Weight | 140.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Ethylhex-2-ynoic acid (C8H12O2) contains a carboxylic acid group, a hydroxyl group, an ether linkage. 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).
CATO supplies 4-Ethylhex-2-ynoic acid (CAS 1339639-69-8), a certified reference material (molecular formula C8H12O2, MW 140.18 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.
As a certified reference material (CRM), 4-Ethylhex-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.
Physical & Chemical Properties
| Molecular Formula | C8H12O2 |
| Molecular Weight | 140.18 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1991 |
Related Ethylhex Standards
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- 2-Ethylhex-2-enol(stabilized with MEHQ) (CAS 50639-00-4)
- 4-Ethylhex-1-en-3-ol (CAS 894805-54-0)
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- 57479-70-6 7-[(E)-2-ethylhex-1-enyl]-8-quinolinol 7-[(E)-2-ethylhex-1-enyl]quinolin-8-ol A831458 (CAS 57479-70-6)
Recommended Standards
- 2-(1-ethyl-1H-pyrazol-5-yl)ethan-1-ol (CAS 1339043-30-9)
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- 2-(tert-Butyl)-4-chloro-6-iodoquinazoline (CAS 950576-97-3)
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- 4-(2-((5-Methyl-1-(naphthalen-2-yl)-1H-pyrazol-3-yl)oxy)ethyl)morpholine hydrochloride (CAS 1265917-14-3)
- 1-Ethylsulfanylundecane (CAS 66577-30-8)
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- 5-Bromo-4-chlorothiophene-2-carbonitrile (CAS 1702153-53-4)
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- Tetrakis(methyldiphenylphosphine)nickel (CAS 25037-29-0)
- 2,5-Diamino-3-chlorobenzonitrile (CAS 82997-64-6)
- Semaglutide impurity 86 (CAS CATO-C4X-152686)
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