(Z)-4-Oxopent-2-enoic acid CAS 2833-21-8
| CAS No. | 2833-21-8 |
| Molecular Formula | C5H6O3 |
| Molecular Weight | 114.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(Z)-4-Oxopent-2-enoic acid (CAS 2833-21-8), molecular formula C5H6O3 and molecular weight 114.10 g/mol, is a CATO reference standard with documented purity and traceability.
(Z)-4-Oxopent-2-enoic acid (C5H6O3) contains a carboxylic acid group, a hydroxyl group, an ether linkage. It is notably hygroscopic, 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).
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), (Z)-4-Oxopent-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 | C5H6O3 |
| Molecular Weight | 114.10 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1957 |
Related Z Standards
- 4-Oxopent-2-Enoic Acid (CAS 4743-82-2)
- 3-Methyl-4-oxopent-2-enoic acid (CAS 53663-10-8)
- Methyl 3-oxopent-4-enoate (CAS 37734-05-7)
- Methyl 4-oxopent-2-enoate (CAS 4188-88-9)
- 4-Oxopent-2-enoyl chloride (CAS 14300-75-5)
- Ethyl 4-oxopent-2-ynoate (CAS 54966-49-3)
- 4-Oxopent-2-enedioic acid (CAS 6004-32-6)
- Ethyl (2-oxopent-4-en-1-yl)carbamate (CAS 1823371-59-0)
Recommended Standards
- (R)-5-Oxotetrahydrofuran-2-carbaldehyde (CAS 70606-00-7)
- 1,4-dihydropyrazine-2,3-dione (CAS 931-18-0)
- (R)-5-Methylhydantoin (CAS 55147-68-7)
- 1-formylcyclopropane-1-carboxylic acid (CAS 88157-18-0)
- 5-(Bromomethyl)-1H-imidazole hydrobromide (CAS 51720-29-7)
- tert-Butyl 2-methyl-3-[(3-methylbutan-2-yl)amino]propanoate (CAS 1221341-90-7)
- 4-Amino-5-chloro-6-(difluoromethyl)pyridine-3-sulfonyl chloride (CAS 1805101-69-2)
- 2-(2,4-Dichlorophenyl)-3-(dimethylamino)-acrylonitrile (CAS 339009-45-9)
- tert-Butyl 4-fluoro-7-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)isoindoline-2-carboxylate (CAS 2134649-55-9)
- 3-(2-Methoxy-5-methylphenyl)propanoic acid (CAS 61371-44-6)
- 1-(4-Bromobenzyl)azetidine (CAS 1044924-69-7)
- 3-Cyclopropoxy-4-fluoropyridine (CAS 1243289-90-8)
- 1H-Pyrrolo[2,3-d]pyrimidin-6-amine (CAS 89418-03-1)
- Tirzepatide Impurity 50 (CAS CATO-C4X-324050)
Why CATO?
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- 130,000+ catalog items in stock, COA supplied with every batch
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