Diethyl 2-oxocyclopentane-1,3-dicarboxylate CAS 51657-17-1
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 51657-17-1 |
| Molecular Formula | C11H16O5 |
| Molecular Weight | 228.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Diethyl 2-oxocyclopentane-1,3-dicarboxylate (CAS 51657-17-1) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C11H16O5. Molecular weight: 228.24 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C11H16O5 |
| Molecular Weight | 228.24 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1971 |
Related Diethyl Standards
- Diethyl 3,4-dihydro-2H-pyran-2,5-dicarboxylate (CAS 103853-11-8)
- 1,1-Diethyl 3-oxocyclopentane-1,1-dicarboxylate (CAS 180573-13-1)
- 1,3-Diethyl 2-(oxolan-2-ylidene)propanedioate (CAS 54362-89-9)
- 1,3-Diethyl 2-cyclopropanecarbonylpropanedioate (CAS 7394-16-3)
- Diethyl 4-oxocyclopentane-1,2-dicarboxylate (CAS 914637-96-0)
- Diethyl pyridazine-1,2(3H,6H)-dicarboxylate (CAS 35691-30-6)
- Diethyl thiophene-2,3-dicarboxylate (CAS 53229-46-2)
- Diethyl thiophene-2,5-dicarboxylate (CAS 61755-85-9)
Recommended Standards
- Benzyl 3-Hydroxybenzoate (CAS 77513-40-7)
- Benzaldehyde, 2-hydroxy-3-(phenylmethoxy)- (CAS 86734-59-0)
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- N-(5-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)pyrimidin-2-yl)acetamide (CAS 1218791-37-7)
- (5-Cyclopropoxy-3-ethylpyridin-2-yl)methanamine (CAS 1243361-02-5)
- 3-Methoxy-N-[(E)-2-(3-methyl-4-nitro-1,2-oxazol-5-yl)ethenyl]aniline (CAS 240799-45-5)
- 2-(5-((3-(4-(Allyloxy)-2-methylphenyl)-1-phenyl-1H-pyrazol-4-yl)methylene)-4-oxo-2-thioxothiazolidin-3-yl)acetic acid (CAS 955888-88-7)
- Semaglutide Impurity 131 (CAS 2618647-80-4)
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 13829788188 / jacky.chen@cato-chem.com