diethyl 2-bromopentanedioate CAS 7209-00-9
| CAS No. | 7209-00-9 |
| Molecular Formula | C9H15BrO4 |
| Molecular Weight | 267.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
diethyl 2-bromopentanedioate (CAS 7209-00-9), molecular formula C9H15BrO4 and molecular weight 267.12 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C9H15BrO4, diethyl 2-bromopentanedioate contains a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 267.12 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
As a certified reference material (CRM), diethyl 2-bromopentanedioate 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 | C9H15BrO4 |
| Molecular Weight | 267.12 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.) | 1959 |
| Halogen Content | Br-containing |
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Recommended Standards
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- 7-Bromospiro[chromane-2,1'-cyclobutan]-4-one (CAS 403793-82-8)
- 4-bromanyl-3,5-dimethoxy-benzoate 4-bromo-3,5-dimethoxybenzoate 56518-42-4 A831069 (CAS 56518-42-4)
- N-[(1H-1,2,3-Benzotriazol-1-yl)methyl]-2,3,4-trifluoroaniline (CAS 256955-28-9)
- 3,3'-([1,1'-Biphenyl]-4,4'-diylbis(oxy))dianiline (CAS 105112-76-3)
- 1-benzyl-3-ethynylpyrrolidine (CAS 1379029-24-9)
- 3-Bromo-N-cyclohexyl-4-methoxybenzenesulfonamide (CAS 358665-66-4)
- 2-(4-Chlorophenyl)tetrahydrofuran-3-amine (CAS 1432680-71-1)
- 3-(2-Fluorophenyl)cyclobutanone (CAS 1080636-31-2)
- Morinidazole Impurity 5 (CAS CATO-C4X-21965)
- 7'-(Trifluoromethyl)-2',3'-dihydro-1'H-spiro[cyclopropane-1,4'-isoquinoline] (CAS 1203683-05-9)
- 2-(4-Aminophenyl)-2-methylpropanenitrile hydrochloride (CAS 1334148-22-9)
- Tirzepatide Impurity 38 (CAS CATO-C4X-324038)
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