2-Oxo-3-butenoic Acid CAS 56842-76-3
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 56842-76-3 |
| Molecular Formula | C4H4O3 |
| Molecular Weight | 100.07 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
High-purity 2-Oxo-3-butenoic Acid (CAS 56842-76-3) pharmaceutical standards reference standard. Molecular formula: C4H4O3. Molecular weight: 100.07 g/mol. Produced by CATO, one of China's leading reference material manufacturers, with COA documentation and global shipping.
Physical & Chemical Properties
| Molecular Formula | C4H4O3 |
| Molecular Weight | 100.07 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.) | 1973 |
Related Oxo Standards
- 2-Methyl-3-butenoic Acid (CAS 53774-20-2)
- 3-Butenoic Acid (CAS 625-38-7)
- 156948-00-4 2-Butenoic acid, 3-methoxy-, (2E)- CTK0B0567 (CAS 156948-00-4)
- 2-Butenoic acid, 3-(acetylamino)-, (2Z)- (CAS 497262-04-1)
- 3-Butenoic acid, 2-hydroxy-2-methyl-, ethyl ester 50471-46-0 CTK1G6653 (CAS 50471-46-0)
- 2-Butenoic acid, 2-methyl-, butyl ester, (2Z)- (CAS 7785-64-0)
- 3-Butenoic acid, 4-(dimethylamino)-2-oxo-, methyl ester (CAS 331005-96-0)
- 2-Butenoic acid, 3-amino-, 1,1-dimethylethyl ester, (2Z)- (CAS 16052-66-7)
Recommended Standards
- 2-Hydroxybut-3-ynoic acid (CAS 38628-65-8)
- 4-Hydroxy-2-butynoic Acid (CAS 7218-52-2)
- methanetricarbaldehyde (CAS 18655-47-5)
- 2-[(4-methoxyÂ-3,5-dimethyl-2-pyridinylÂ)-methylÂthio]-5-(oxazolin-2-yl)-benzÂimidazole (CAS 116091-77-1)
- 2-(2-Aminoethyl)-2-methyl-1,3-dioxolane (CAS 62240-37-3)
- (1S,4S)-2,5-diazabicyclo[2.2.1]heptane;dihydrochloride (CAS 5260-20-8)
- (3S,4R)-3,4-Dihydroxypentan-2-one (CAS 118994-78-8)
- 3-Amino-5-ethyl-1H-pyrazole-4-carboxamide (CAS 50436-86-7)
- (S)-(2,2-Difluorocyclobutyl)methanamine (CAS 2199141-20-1)
- Des-Gly29,30-Tirzepatide (CAS CATO-CPTD788944)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 13829788188 / jacky.chen@cato-chem.com