rel-(2R,3R)-1-Ethyl 2-methyl 3-chloro-2-fluoropyrrolidine-1,2-dicarboxylate CAS 1969291-93-7

Purity 97%+In StockPharmaceutical Standards
CAS No.1969291-93-7
Molecular FormulaC9H13ClFNO4
Molecular Weight253.66 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

rel-(2R,3R)-1-Ethyl 2-methyl 3-chloro-2-fluoropyrrolidine-1,2-dicarboxylate CAS 1969291-93-7 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.

rel-(2R,3R)-1-Ethyl 2-methyl 3-chloro-2-fluoropyrrolidine-1,2-dicarboxylate (CAS 1969291-93-7) is a high-purity analytical reference standard with the molecular formula C9H13ClFNO4 and a molecular weight of 253.66 g/mol.

Structurally, rel-(2R,3R)-1-Ethyl 2-methyl 3-chloro-2-fluoropyrrolidine-1,2-dicarboxylate (C9H13ClFNO4) contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 3.0, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 253.66 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

As a certified reference material (CRM), rel-(2R,3R)-1-Ethyl 2-methyl 3-chloro-2-fluoropyrrolidine-1,2-dicarboxylate meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

Molecular FormulaC9H13ClFNO4
Molecular Weight253.66 g/mol
AppearanceWhite to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility)
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in methanol, ethanol, DMSO
StabilityMay 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)3.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1996
Halogen ContentF/Cl-containing
Nitrogen Atoms1

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