Bromoaceticanhydride CAS 13094-51-4
| CAS No. | 13094-51-4 |
| Molecular Formula | C4H4Br2O3 |
| Molecular Weight | 259.88 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Bromoaceticanhydride (C4H4Br2O3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Bromoaceticanhydride (CAS 13094-51-4), molecular formula C4H4Br2O3 and molecular weight 259.88 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C4H4Br2O3 |
| Molecular Weight | 259.88 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 | Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1960 |
| Halogen Content | Br-containing |
Recommended Standards
- 28240-71-3 CTK4G1069 Phosphonous dichloride,P,P'-1,4-butanediylbis- (CAS 28240-71-3)
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- 5-Bromo-2-hydroxy-N-(6-methylpyridin-2-yl)benzamide (CAS 783371-26-6)
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- 4-(Hexahydro-1H-4,7-methanoinden-5(6H)-ylidene)butanal (CAS 30168-23-1)
- Semaglutide impurity 270 (CAS CATO-C4X-2226270)
Why CATO?
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