Diethyl 2-(cyclopropylmethyl)malonate CAS 37092-86-7
| CAS No. | 37092-86-7 |
| Molecular Formula | C11H18O4 |
| Molecular Weight | 214.26 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Diethyl 2-(cyclopropylmethyl)malonate (CAS 37092-86-7) is a high-purity analytical reference standard with the molecular formula C11H18O4 and a molecular weight of 214.26 g/mol.
Based on its molecular formula C11H18O4, Diethyl 2-(cyclopropylmethyl)malonate contains a carboxylic acid group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 214.26 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C11H18O4 |
| Molecular Weight | 214.26 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1967 |
Related Diethyl Standards
- Diethyl cyclopentane-1,3-dicarboxylate (CAS 14277-18-0)
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- (E)-Diethyl 2-(but-2-en-1-yl)malonate (CAS 84200-37-3)
- Diethyl 2-(2-methylpropylidene)malonate (CAS 5652-68-6)
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Recommended Standards
- Citreodiol (CAS 94120-03-3)
- cis-4-(Methoxycarbonyl)-1,4-dimethylcyclohexanecarboxylic acid (CAS 2762044-47-1)
- cis-3-tert-Butoxycarbonylmethyl-cyclobutanecarboxylic acid (CAS 847416-52-8)
- Butyl 2-(3-oxopiperazin-2-yl)acetate (CAS 90973-88-9)
- 6-((2-Fluorobenzyl)thio)-3-(pyridin-3-yl)-[1,2,4]triazolo[4,3-b]pyridazine (CAS 868969-21-5)
- 16-Methanethiosulfonyl Hexadecanoic Acid (CAS 887406-81-7)
- 2-((Trimethylsilyl)ethynyl)benzonitrile (CAS 97308-62-8)
- Cyclopropyl({4'-methoxy-[1,1'-biphenyl]-4-yl})methanone (CAS 865659-55-8)
- N-Isopropyl-2-(tetramethyl-1,3,2-dioxaborolan-2-yl)benzenesulfonamide (CAS 1621520-78-2)
- trans-2,5-Dimethyl-morpholine (CAS 67804-27-7)
- Ethyl 2-((tert-butoxycarbonyl)amino)-4-chloronicotinate (CAS 2226539-13-3)
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