(E)-but-2-enedioic acid methyl 4-[2-(3,4-dichlorophenyl)acetyl]-3-(pyrrolidin-1-ylmethyl)piperazine-1-carboxylate CAS 126766-32-3
| CAS No. | 126766-32-3 |
| Molecular Formula | C19H31Cl2N3O3 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of (E)-but-2-enedioic acid methyl 4-[2-(3,4-dichlorophenyl)acetyl]-3-(pyrrolidin-1-ylmethyl)piperazine-1-carboxylate (C19H31Cl2N3O3C4H4O4) is characterized by a flavonoid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).
CATO supplies (E)-but-2-enedioic acid methyl 4-[2-(3,4-dichlorophenyl)acetyl]-3-(pyrrolidin-1-ylmethyl)piperazine-1-carboxylate (CAS 126766-32-3), a certified reference material (molecular formula C19H31Cl2N3O3C4H4O4, MW 536.45 g/mol) for analytical method development and quality control.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C19H31Cl2N3O3 C4H4O4 |
| Molecular Weight | 536.45 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1993 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Recommended Standards
- (4-Fluoro-1H-indol-3-yl)methanamine (CAS 887582-11-8)
- 1-(Cyclopropylmethyl)-1H-benzo[d]imidazole-2-carbaldehyde (CAS 558446-33-6)
- Palmatine hydroxide (CAS 131-04-4)
- 1-Cyclopropyl-6-fluoro-7-(3-((methylamino)methyl)pyrrolidin-1-yl)-4-oxo-8-(trifluoromethyl)-1,4-dihydroquinoline-3-carboxylic acid (CAS 118829-06-4)
- Cu (CAS CATO-CCRM106032)
- 1-(2,2,6,6-Tetramethyl-4-{[(phenylsulfonyl)oxy]imino}piperidino)-1-ethanone (CAS 478079-97-9)
- 2-(3,4-Difluorophenoxy)ethane-1-sulfonyl chloride (CAS 1339827-32-5)
- N'-((1H-Indol-3-yl)methylene)-3-(3-nitrophenyl)-1H-pyrazole-5-carbohydrazide (CAS 303106-88-9)
- Tizanidine Impurity 56 (CAS CATO-C4X-144556)
- Semaglutide impurity 30 (CAS CATO-C4X-222630)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com