Tert-butyl (R,E)-2-(2-ethoxy-2-oxoethylidene)-5-methylpyrrolidine-1-carboxylate CAS 1526945-33-4
| CAS No. | 1526945-33-4 |
| Molecular Formula | C14H23NO4 |
| Molecular Weight | 269.34 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
Tert-butyl (R,E)-2-(2-ethoxy-2-oxoethylidene)-5-methylpyrrolidine-1-carboxylate (CAS 1526945-33-4) is a high-purity analytical reference standard with the molecular formula C14H23NO4 and a molecular weight of 269.34 g/mol.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, Tert-butyl (R,E)-2-(2-ethoxy-2-oxoethylidene)-5-methylpyrrolidine-1-carboxylate is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 269.34 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO manufactures Tert-butyl (R,E)-2-(2-ethoxy-2-oxoethylidene)-5-methylpyrrolidine-1-carboxylate 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.
Physical & Chemical Properties
| Molecular Formula | C14H23NO4 |
| Molecular Weight | 269.34 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1992 |
| Nitrogen Atoms | 1 |
Recommended Standards
- 3-(Tert-butyl) 8-methyl (1R,5S)-3-azabicyclo[3.2.1]Octane-3,8-dicarboxylate (CAS 1515925-03-7)
- N-Phenylanthracen-9-amine (CAS 15424-38-1)
- 5-tert-Butyl 1-ethyl 5-azaspiro[2.4]heptane-1,5-dicarboxylate (CAS 150543-45-6)
- 5-Acetyl-2-(4-(t-butylphenoxy) pyridine (CAS 1546175-36-3)
- (4-Benzyl-1-piperazinyl)(2-pyrrolidinyl)methanonehydrochloride (CAS 1236259-37-2)
- 2-[(3-iodophenyl)amino]pyridine-3-carboxylic acid (CAS 57978-44-6)
- N-(4-acetylphenyl)-2-((5-cyclohexyl-4-phenyl-4H-1,2,4-triazol-3-yl)thio)acetamide (CAS 332870-48-1)
- 3,4,5-Trimethylisoxazole (CAS 10557-82-1)
- 4-Fluoro-3-methoxy-2-nitrobenzonitrile (CAS 887202-43-9)
- 1,2,4-Trimethyl-1,4-dihydropyrazine (CAS 89851-57-0)
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- 4H-Pyrazol-3-ol (CAS 145091-85-6)
- N-(5-(azepan-1-ylsulfonyl)-2-methoxyphenyl)-2-chloroacetamide (CAS 872107-76-1)
- Peptide 435 (CAS CATO-CPTD788435)
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