Diethyl 2-(3-Bromopropyl)-2-methylmalonate CAS 74475-06-2
| CAS No. | 74475-06-2 |
| Molecular Formula | C11H19BrO4 |
| Molecular Weight | 295.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Diethyl 2-(3-Bromopropyl)-2-methylmalonate (CAS 74475-06-2), molecular formula C11H19BrO4 and molecular weight 295.17 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, Diethyl 2-(3-Bromopropyl)-2-methylmalonate (C11H19BrO4) contains a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 2.0, corresponding to approximately 2 ring(s) or double-bond equivalent(s). With a molecular weight of 295.17 g/mol, it falls into the medium-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
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 | C11H19BrO4 |
| Molecular Weight | 295.17 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 |
| Stability | Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1978 |
| Halogen Content | Br-containing |
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Recommended Standards
- 6-Bromospiro[chromane-2,1'-cyclohexan]-4-one (CAS 223416-26-0)
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- 5-Methyl-7-(pentafluoroethyl)pyrazolo[1,5-a]pyrimidine-2-carboxylic acid (CAS 676469-64-0)
- 4-{5-bromo-1H-pyrazolo[3,4-b]pyridin-1-yl}-1-methylpiperidine (CAS 1016850-95-5)
- 5-Ethyl-1,3,5-triazinan-2-one (CAS 1770-98-5)
- 4-Amino-5-(3,4-dimethoxy-benzyl)-4H-[1,2,4]triazole-3-thiol (CAS 568570-11-6)
- 1-Bromo-7-(prop-2-yn-1-yloxy)heptane (CAS 452340-33-9)
- 5-Bromo-3-(methylthio)-1H-indazole (CAS 201227-23-8)
- (5aR,6S,9S,9aS)-2-Mesityl-6,11,11-trimethyl-5a,6,7,8,9,9a-hexahydro-4H-6,9-methanobenzo[b][1,2,4]triazolo[4,3-d][1,4]oxazin-2-ium Tetrafluoroborate (CAS 1037287-79-8)
- methyl 4-methyl-1H-pyrrole-2-carboxylate (CAS 34402-78-3)
- 1,2,3,4-Tetrahydrobenz[a]anthracen-4-one (CAS 38393-90-7)
- Trazodone EP Impurity A HCl (CAS 55290-66-9)
- 3-Cyclobutyl-1-methyl-1H-pyrazol-5-amine (CAS 92406-41-2)
- Fragment-[3-31]-Liraglutide (CAS CATO-C4X-199232)
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