(E)-2,3-Dibromo-4-oxobut-2-enoic acid CAS 90994-06-2
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 90994-06-2 |
| Molecular Formula | C4H2Br2O3 |
| Molecular Weight | 257.86 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies (E)-2,3-Dibromo-4-oxobut-2-enoic acid (CAS 90994-06-2), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C4H2Br2O3. Molecular weight: 257.86 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C4H2Br2O3 |
| Molecular Weight | 257.86 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1982 |
| Halogen Content | Br-containing |
Related E Standards
- 2,3-Dibromo-4-oxobut-2-enoic acid (CAS 21577-50-4)
- 3,4-Dibromo-5-hydroxyfuran-2(5H)-one (CAS 766-38-1)
- 2,5-Dibromo-4-fluoro-1-methyl-1H-imidazole (CAS 1824064-07-4)
- 1,5-Dibromo-2,4-pentanedione (CAS 68864-57-3)
- 2,2-Dibromo-1-methylcyclopropane-1-carboxylic acid (CAS 5365-21-9)
- 1,5-Dibromo-3,3-dimethylpentane (CAS 37746-17-1)
- 1,2-Dibromo-1-chloro-2,2-difluoroethane (CAS 421-36-3)
- 1,2-Dibromo-3-thiocyanatoprop-1-ene (CAS 102367-28-2)
Recommended Standards
- 2-Chloro-4-pyridylzinc bromide (CAS 1227940-97-7)
- 2-Chloro-3-pyridylzinc bromide 0.5 M in Tetrahydrofuran (CAS 1227833-83-1)
- 4,4'-Oxybis(1,4-phenylene)diboronic acid (CAS 19014-29-0)
- 5-Bromo-2-((3-fluorobenzyl)oxy)pyrimidine (CAS 1635413-27-2)
- 4-((1E,3E)-4-Phenylbuta-1,3-dien-1-yl)phenol (CAS 1206103-27-6)
- 189109-45-3 Byzantionoside B C19H32O7 W2295 (CAS 189109-45-3)
- N-(3-methoxybenzyl)cycloheptanamine hydrobromide (CAS 1609407-63-7)
- (R)-α-[(Acetylthio)methyl]benzenepropanoic Acid (CAS 116111-79-6)
- 3-Cyclopropoxy-5-methyl-2-(methylthio)pyridine (CAS 1243353-64-1)
- Des-Pro-Pro-Tirzepatide (CAS CATO-CPTD788696)
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