3-Bromo-2-oxopropanoyl chloride CAS 75261-25-5
| CAS No. | 75261-25-5 |
| Molecular Formula | C3H2BrClO2 |
| Molecular Weight | 185.40 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-Bromo-2-oxopropanoyl chloride (CAS 75261-25-5), molecular formula C3H2BrClO2 and molecular weight 185.40 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine/bromine substitution, 3-Bromo-2-oxopropanoyl chloride is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 185.40 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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), 3-Bromo-2-oxopropanoyl chloride 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 | C3H2BrClO2 |
| Molecular Weight | 185.40 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1978 |
| Halogen Content | Cl/Br-containing |
Related Bromo Standards
- 2-Bromo-2-methylpropanoyl chloride (CAS 20469-89-0)
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- 1-Bromo-2,5-octadiyne (CAS 1558-79-8)
- 1-Bromo-2-ethylbenzene (CAS 1973-22-4)
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- 4-Bromo-m-xylene (CAS 583-70-0)
Recommended Standards
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- Tributylamine (CAS 102-82-9)
- (5-Chloro-2-ethylpyridin-3-yl)boronic acid (CAS 2225176-65-6)
- 3-(4'-Fluoro-[1,1'-biphenyl]-4-yl)propanoic acid (CAS 893641-10-6)
- Fmoc-D-Trp-OH (CAS 86123-11-7)
- 3-Nitropropylbenzene (CAS 22818-69-5)
- 1,3-Diaminopropane-N,N-diacetic Acid (CAS 57119-37-6)
- 4-Methoxyfluorophosphinyloxy-TEMPO (CAS 181702-77-2)
- Fmoc-D-hLys(Boc)-OH (CAS 1434054-86-0)
- 4,4-Dimethyl-1,2,3,4-tetrahydroquinolin-6-amine (CAS 1187933-52-3)
- 3-(1-Methyl-5-oxo-2-thioxoimidazolidin-4-yl)propanamide (CAS 1968-37-2)
- 1-(3-Nitropyridin-2-yl)pyrrolidin-3-amine (CAS 833452-33-8)
- Peptide Impurity 06 (CAS CATO-CPTD788806)
Why CATO?
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