Diethyl 2-(cyclobutylmethyl)malonate CAS 21782-47-8
| CAS No. | 21782-47-8 |
| Molecular Formula | C12H20O4 |
| Molecular Weight | 228.28 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Diethyl 2-(cyclobutylmethyl)malonate under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Diethyl 2-(cyclobutylmethyl)malonate (CAS 21782-47-8), molecular formula C12H20O4 and molecular weight 228.28 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C12H20O4, Diethyl 2-(cyclobutylmethyl)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 228.28 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
Physical & Chemical Properties
| Molecular Formula | C12H20O4 |
| Molecular Weight | 228.28 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, 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.) | 1963 |
Related Diethyl Standards
- Diethyl (1R,2S)-cyclohexane-1,2-dicarboxylate (CAS 17351-07-4)
- Diethyl (1R,2R)-cyclohexane-1,2-dicarboxylate (CAS 17351-22-3)
- 1,3-Diethyl 2-cyclopentylpropanedioate (CAS 18928-91-1)
- Diethyl 2-(pent-4-en-1-yl)malonate (CAS 1906-96-3)
- Diethyl (1r,4r)-cyclohexane-1,4-dicarboxylate (CAS 19145-96-1)
- 1,1-Diethyl 3,3-dimethylcyclobutane-1,1-dicarboxylate (CAS 854451-17-5)
- 1,3-Diethyl 2-(3-methylbut-2-en-1-yl)propanedioate (CAS 22539-80-6)
- 1,3-Diethyl cyclohexane-1,3-dicarboxylate (CAS 72903-26-5)
Recommended Standards
- cis-Diethyl cyclohexane-1,3-dicarboxylate (CAS 62059-56-7)
- Diethyl 2,2'-(cyclobutane-1,1-diyl)diacetate (CAS 51008-00-5)
- cis-3-benzyloxy-1-hydroxy-cyclobutanecarboxylic acid (CAS 2293093-37-3)
- Diethyl 2,3-diethylmaleate (CAS 59863-62-6)
- 4-(4-Acetyl-2-methoxy-5-nitrophenoxy)butanoic acid (CAS 188891-18-1)
- 2,4-Difluoro-N-((1-(thiophen-2-yl)cyclopropyl)methyl)benzamide (CAS 1207059-19-5)
- 3-(3,4-Dimethoxyphenyl)quinolin-2-amine (CAS 33543-51-0)
- Cyclopropyl(m-tolyl)methanol (CAS 1182739-39-4)
- 8-Chloro-5-methoxy-1,2,3,4-tetrahydroquinoline (CAS 1251235-58-1)
- 3-((2,4-Dimethylphenyl)thio)butan-2-one (CAS 105337-13-1)
- 2-(Tetrahydro-2H-pyran-2-yl)pyrrolidine hydrochloride (CAS 2137740-10-2)
- Clonidine EP Impurity B (CAS 54707-71-0)
- 4-Methoxy-3-(1-methyl-1h-pyrazol-3-yl)benzoic acid (CAS 1427379-47-2)
- Semaglutide impurity 107 (CAS CATO-C4X-2226107)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com