tert-Butyl 3-(4-fluorophenyl)-6a-(pyrrolidin-1-yl)-6,6a-dihydro-2H-pyrrolo[2,3-d]isoxazole-4(5H)-carboxylate CAS 1421312-03-9

Purity 97%+In StockPharmaceutical Standards
CAS No.1421312-03-9
Molecular FormulaC20H26FN3O3
Molecular Weight375.44 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

tert-Butyl 3-(4-fluorophenyl)-6a-(pyrrolidin-1-yl)-6,6a-dihydro-2H-pyrrolo[2,3-d]isoxazole-4(5H)-carboxylate CAS 1421312-03-9 chemical structure

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including tert-Butyl 3-(4-fluorophenyl)-6a-(pyrrolidin-1-yl)-6,6a-dihydro-2H-pyrrolo[2,3-d]isoxazole-4(5H)-carboxylate.

tert-Butyl 3-(4-fluorophenyl)-6a-(pyrrolidin-1-yl)-6,6a-dihydro-2H-pyrrolo[2,3-d]isoxazole-4(5H)-carboxylate (CAS 1421312-03-9), molecular formula C20H26FN3O3 and molecular weight 375.44 g/mol, is a CATO reference standard with documented purity and traceability.

tert-Butyl 3-(4-fluorophenyl)-6a-(pyrrolidin-1-yl)-6,6a-dihydro-2H-pyrrolo[2,3-d]isoxazole-4(5H)-carboxylate (C20H26FN3O3) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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.

CATO manufactures tert-Butyl 3-(4-fluorophenyl)-6a-(pyrrolidin-1-yl)-6,6a-dihydro-2H-pyrrolo[2,3-d]isoxazole-4(5H)-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 FormulaC20H26FN3O3
Molecular Weight375.44 g/mol
AppearancePale yellow to yellow crystalline powder. (slight halide-like odor)
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in DMSO, DMF, methanol
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)9.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1991
Halogen ContentF-containing
Nitrogen Atoms3

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