Diethyl 2-(1-bromopropan-2-ylidene)malonate CAS 13830-91-6
| CAS No. | 13830-91-6 |
| Molecular Formula | C10H15BrO4 |
| Molecular Weight | 279.13 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Diethyl 2-(1-bromopropan-2-ylidene)malonate (CAS 13830-91-6) is a high-purity analytical reference standard with the molecular formula C10H15BrO4 and a molecular weight of 279.13 g/mol.
Structurally, Diethyl 2-(1-bromopropan-2-ylidene)malonate (C10H15BrO4) contains a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 3.0, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 279.13 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.
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 | C10H15BrO4 |
| Molecular Weight | 279.13 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 | 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.) | 1960 |
| Halogen Content | Br-containing |
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Recommended Standards
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- Methyl 2-(4-bromonaphthalen-1-yl)acetate (CAS 14311-34-3)
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- Galidesivir DiHCl (CAS 1373208-51-5)
- 5-Methyl-3-nitropyridine-2-carbonitrile (CAS 1089330-68-6)
- (S)-tert-Butyl (4-(3-chloro-2-(phenylcarbamoyl)phenyl)-3-oxobutan-2-yl)carbamate (CAS 1386861-47-7)
- 4-(2-aminophenyl)-1-(benzyloxy)pyrazole (CAS 229171-17-9)
- n-(2-Fluoro-5-methylphenyl)tetrahydro-2h-pyran-4-amine (CAS 1157009-98-7)
- 2-Iodo-N-methoxy-N-methylbenzamide (CAS 294190-47-9)
- Rimegepant Impurity 36 (CAS CATO-C4X-248736)
- [3-31]-Semaglutide D (Sodium salt) (CAS CATO-C4X-2226119)
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